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Properties of Waves · CAPE Physics Unit 1

257 past-paper questions on Properties of Waves, part of Oscillations and Waves, from every CAPE Physics Unit 1 paper on Quelpr.

Practise Properties of Waves
  1. Q161 mark · multiple choice· CAPE Physics Unit 1 · 2007 · Paper 1What is the phase difference between the oscillations?
  2. Q171 mark · multiple choice· CAPE Physics Unit 1 · 2007 · Paper 1The frequency of the vibrator is 50\text{ Hz}. What is the speed of the wave?
  3. Q181 mark · multiple choice· CAPE Physics Unit 1 · 2007 · Paper 1Which of the following observations indicates that sound waves are longitudinal?
  4. Q221 mark · multiple choice· CAPE Physics Unit 1 · 2007 · Paper 1Two sources of sound, X and Y, that are in phase are positioned as shown in the diagram. They both produce waves with wavelength 2\text{ m} and amplitude A. What would be the amplitude of the sound observed at point…
  5. Q231 mark · multiple choice· CAPE Physics Unit 1 · 2007 · Paper 1A sound wave of intensity I_1 has an amplitude of 30\text{ mm}. Another wave of the same frequency but of intensity I_2 has an amplitude of 10\text{ mm}. What is the value of \frac{I_1}{I_2}?
  6. Q241 mark · multiple choice· CAPE Physics Unit 1 · 2007 · Paper 1An air column in a tube which is closed at one end vibrates in its fundamental mode. The amplitude of the vibrations of the air can be represented in magnitude and direction at various points by arrows with a dot…
  7. Q251 mark · multiple choice· CAPE Physics Unit 1 · 2007 · Paper 1Which of the following is NOT a condition necessary for two-source destructive interference of sound waves to be observed?
  8. Q161 mark · multiple choice· CAPE Physics Unit 1 · 2007 (Specimen) · Paper 1Which of the following CANNOT be demonstrated in sound waves?
  9. Q181 mark · multiple choice· CAPE Physics Unit 1 · 2007 (Specimen) · Paper 1The displacement-time and displacement-distance graphs for a transverse wave are shown below. What is the wave speed?
  10. Q191 mark · multiple choice· CAPE Physics Unit 1 · 2007 (Specimen) · Paper 1For light passing from air to Material X, the refractive index is 1.3 and for light passing from air to Material Y, the refraction index is 1.5. Which of the following shows the speed of light in air, X and Y in…
  11. Q201 mark · multiple choice· CAPE Physics Unit 1 · 2007 (Specimen) · Paper 1Light from a source is incident normally on a diffraction grating which has 2000\text{ lines per mm}. What is the wavelength of the light if the first order maximum makes an angle of 30^\circ with the zero order?
  12. Q221 mark · multiple choice· CAPE Physics Unit 1 · 2007 (Specimen) · Paper 1The value of a possible wavelength for radiation in the visible region in the electromagnetic spectrum is
  13. Q231 mark · multiple choice· CAPE Physics Unit 1 · 2007 (Specimen) · Paper 1Items 23 refers to the following diagram. Two wave sources X and Y are positioned as shown 50\text{ mm} and 120\text{ mm} from a point P. The two sources produce waves which are in phase and which both have…
  14. Q251 mark · multiple choice· CAPE Physics Unit 1 · 2007 (Specimen) · Paper 1Which of the following is NOT a condition necessary for the formation of stationary waves from two progressive waves?
  15. Q261 mark · multiple choice· CAPE Physics Unit 1 · 2007 (Specimen) · Paper 1A glass tube of effective length 0.60\text{ m} is closed at one end. Given that the speed of sound in air is 300\text{ m s}^{-1} the two LOWEST resonant frequencies are
  16. Q271 mark · multiple choice· CAPE Physics Unit 1 · 2007 (Specimen) · Paper 1Item 27 refers to the following diagram. A microwave transmitter X sends radio waves to a metal sheet Y. A probe, P, between X and Y is moved from one node through 20 antinodes to a node 0.3\text{ m} away. What is…
  17. Q201 mark · multiple choice· CAPE Physics Unit 1 · 2008 (Rest of Region) · Paper 1Elastic waves in a solid are
  18. Q221 mark · multiple choice· CAPE Physics Unit 1 · 2008 (Rest of Region) · Paper 1What is the phase difference between Waves 1 and 2?
  19. Q231 mark · multiple choice· CAPE Physics Unit 1 · 2008 (Rest of Region) · Paper 1Give the wavelength of the stationary wave in terms of L if the distance between points E & F is 4L.
  20. Q241 mark · multiple choice· CAPE Physics Unit 1 · 2008 (Rest of Region) · Paper 1The distance between a node and a neighbouring antinode of a stationary wave is equal to
  21. Q251 mark · multiple choice· CAPE Physics Unit 1 · 2008 (Rest of Region) · Paper 1The ratio of the frequencies f_1 : f_2 : f_3 : f_4 is
  22. Q291 mark · multiple choice· CAPE Physics Unit 1 · 2008 (Rest of Region) · Paper 1Two sound waves of the same frequency having amplitudes of 3\text{ cm} and 1\text{ cm} respectively are moving towards each other in the same straight line. The resultant wave produced will vary in loudness. The…
  23. Q191 mark · multiple choice· CAPE Physics Unit 1 · 2008 (T&T) · Paper 1What is the phase difference between the two points labelled A and B on the graph below?
  24. Q211 mark · multiple choice· CAPE Physics Unit 1 · 2008 (T&T) · Paper 1A student's range of hearing is from 40\text{ Hz} to 15\text{ kHz}. What is the SHORTEST wavelength of sound she can hear if the speed of sound in air is 330\text{ m s}^{-1}?
  25. Q221 mark · multiple choice· CAPE Physics Unit 1 · 2008 (T&T) · Paper 1Which of the following statements concerning sound and light waves is correct?
  26. Q231 mark · multiple choice· CAPE Physics Unit 1 · 2008 (T&T) · Paper 1Where on this stationary wave does an antinode exist?
  27. Q261 mark · multiple choice· CAPE Physics Unit 1 · 2008 (T&T) · Paper 1Sound waves and light waves CANNOT BOTH be
  28. Q271 mark · multiple choice· CAPE Physics Unit 1 · 2008 (T&T) · Paper 1At a distance 20\text{ m} from a small loudspeaker, the amplitude of the sound heard is 0.012\text{ mm}. At a distance 40\text{ m} from the loudspeaker, the amplitude in mm is
  29. Q281 mark · multiple choice· CAPE Physics Unit 1 · 2008 (T&T) · Paper 1Standing waves are produced in a 10\text{ m} long stretched string. If the string vibrates in 5 segments and wave velocity is 20\text{ m/s}, the frequency is
  30. Q191 mark · multiple choice· CAPE Physics Unit 1 · 2009 · Paper 1Stationary waves are produced by superimposing progressive waves of frequency 500\text{ Hz}. Successive nodes are separated by a distance of 2\text{ m}. What is the speed of the progressive waves?
  31. Q201 mark · multiple choice· CAPE Physics Unit 1 · 2009 · Paper 1The diagram below shows an instantaneous position of a transverse wave travelling from left to right along a string. Which of the following correctly describes the subsequent motion, if any, of the points R and S…
  32. Q211 mark · multiple choice· CAPE Physics Unit 1 · 2009 · Paper 1Two sources of water waves X and Y generate waves which are out of phase by 180^\circ. If the waves from X are of amplitude 5\text{ m} and the waves from Y are of amplitude 3\text{ m}, which of the…
  33. Q221 mark · multiple choice· CAPE Physics Unit 1 · 2009 · Paper 1The intensity of sound is directly proportional to the
  34. Q231 mark · multiple choice· CAPE Physics Unit 1 · 2009 · Paper 1A standing wave is set up on a stretched string XY as shown in the diagram below. Which of the following statements is correct?
  35. Q241 mark · multiple choice· CAPE Physics Unit 1 · 2009 · Paper 1Item 24 refers to the following diagram which shows a stationary wave on a string at one instant in time. Where on this stationary wave does an antinode exist?
  36. Q191 mark · multiple choice· CAPE Physics Unit 1 · 2010 · Paper 1Which of the following correctly shows the directions of the motion of points X, Y and Z on the rope as a transverse wave passes along it from left to right?
  37. Q201 mark · multiple choice· CAPE Physics Unit 1 · 2010 · Paper 1Which of the following events is associated with transverse waves but NOT longitudinal waves?
  38. Q211 mark · multiple choice· CAPE Physics Unit 1 · 2010 · Paper 1Sound waves with a frequency of 200\text{ Hz} travel through a medium with a speed of 400\text{ m s}^{-1}. What is the phase difference between two points which are 3\text{ m} apart in the direction of the wave?
  39. Q221 mark · multiple choice· CAPE Physics Unit 1 · 2010 · Paper 1The following displacement-position graph represents a stationary wave at two different instants of time. What does the distance PQ represent?
  40. Q231 mark · multiple choice· CAPE Physics Unit 1 · 2010 · Paper 1A wave of amplitude 10\text{ cm} has intensity I_1. Another similar wave has an amplitude of 5\text{ cm} and intensity I_2. What is the value of \frac{I_1}{I_2}?
  41. Q241 mark · multiple choice· CAPE Physics Unit 1 · 2010 · Paper 1Where on this stationary wave does an antinode exist?
  42. Q201 mark · multiple choice· CAPE Physics Unit 1 · 2011 · Paper 1Two sources of water waves, X and Y, generate waves which are out of phase by 180^\circ. If the waves from X are of amplitude 5\text{ m} and the waves from Y are of amplitude 3\text{ m}, which of the following…
  43. Q211 mark · multiple choice· CAPE Physics Unit 1 · 2011 · Paper 1The principle of superposition of waves states that when two or more waves meet at a point, the resultant displacement is the
  44. Q221 mark · multiple choice· CAPE Physics Unit 1 · 2011 · Paper 1Which of the following statements concerning sound and light waves is correct?
  45. Q231 mark · multiple choice· CAPE Physics Unit 1 · 2011 · Paper 1A communication satellite sends information to Earth in the form of electromagnetic waves in bursts of 5\text{ ms} duration. If the wavelength of the electromagnetic waves is 2 \times 10^{-6}\text{ m}, the number of…
  46. Q241 mark · multiple choice· CAPE Physics Unit 1 · 2011 · Paper 1Item 24 refers to the following diagram which shows a stationary wave on a string at one instant in time. Where on this stationary wave does an antinode exist?
  47. Q251 mark · multiple choice· CAPE Physics Unit 1 · 2011 · Paper 1When measuring the speed of sound in air, different vibrating tuning forks are held over the open end of a resonance tube and the length of air column lowered until the first loud note is heard. The following graph…
  48. Q261 mark · multiple choice· CAPE Physics Unit 1 · 2011 · Paper 1A ship sends down a pulse of sound to measure the depth of the sea. The echo is detected 0.1\text{ s} later. Assuming that sound travels five times faster in sea-water than in the air, how deep is the sea at this…
  49. Q271 mark · multiple choice· CAPE Physics Unit 1 · 2011 · Paper 1X-rays differ from microwaves in that they
  50. Q281 mark · multiple choice· CAPE Physics Unit 1 · 2011 · Paper 1Standing waves are produced in a 10\text{ m} long stretched string. If the string vibrates in 5 segments and wave velocity is 20\text{ m s}^{-1}, the frequency is
  51. Q291 mark · multiple choice· CAPE Physics Unit 1 · 2011 · Paper 1The amplitude of a wave is increased from 4\text{ m} to 6\text{ m}. What is the change in intensity of the wave?
  52. Q191 mark · multiple choice· CAPE Physics Unit 1 · 2012 · Paper 1Which of the following statements concerning sound and light waves is correct?
  53. Q201 mark · multiple choice· CAPE Physics Unit 1 · 2012 · Paper 1Which of the following events is associated with transverse waves but NOT longitudinal waves?
  54. Q221 mark · multiple choice· CAPE Physics Unit 1 · 2012 · Paper 1Item 22 refers to the following displacement-position graph which represents a stationary wave at two different instants of time. What does the distance PQ represent?
  55. Q231 mark · multiple choice· CAPE Physics Unit 1 · 2012 · Paper 1The intensity of sound is directly proportional to the
  56. Q191 mark · multiple choice· CAPE Physics Unit 1 · 2013 · Paper 1The following displacement-position graph represents a stationary wave at two different instants of time. The distance PQ represents half the
  57. Q201 mark · multiple choice· CAPE Physics Unit 1 · 2013 · Paper 1What is the phase difference between the two points A and B on the graph below?
  58. Q211 mark · multiple choice· CAPE Physics Unit 1 · 2013 · Paper 1The intensity of sound is directly proportional to the
  59. Q221 mark · multiple choice· CAPE Physics Unit 1 · 2013 · Paper 1Which of the following statements concerning sound and light waves is correct?
  60. Q231 mark · multiple choice· CAPE Physics Unit 1 · 2013 · Paper 1Which of the following events is associated with transverse waves but NOT longitudinal waves?
  61. Q241 mark · multiple choice· CAPE Physics Unit 1 · 2013 · Paper 1Stationary waves are produced by superimposing progressive waves of frequency 500\text{ Hz}. Successive nodes are separated by a distance of 2\text{ m}. What is the speed of the progressive waves?
  62. Q251 mark · multiple choice· CAPE Physics Unit 1 · 2013 · Paper 1Where on this stationary wave does an antinode exist?
  63. Q301 mark · multiple choice· CAPE Physics Unit 1 · 2013 · Paper 1A student's range of hearing is from 40\text{ Hz} to 15\text{ kHz}. What is the SHORTEST wavelength of sound she can hear if the speed of sound in air is 330\text{ m s}^{-1}?
  64. Q181 mark · multiple choice· CAPE Physics Unit 1 · 2014 · Paper 1Item 18 refers to the diagram below which shows a snapshot of a rope as a transverse wave passes along it from left to right. Which of the following sets of arrows correctly shows the directions of the motion of points…
  65. Q191 mark · multiple choice· CAPE Physics Unit 1 · 2014 · Paper 1Which of the following statements concerning sound and light waves is correct?
  66. Q201 mark · multiple choice· CAPE Physics Unit 1 · 2014 · Paper 1Which of the following events is associated with transverse waves but NOT longitudinal waves?
  67. Q221 mark · multiple choice· CAPE Physics Unit 1 · 2014 · Paper 1Which of the following statements is NOT true for a progressive wave?
  68. Q241 mark · multiple choice· CAPE Physics Unit 1 · 2014 · Paper 1The principle of superposition of waves states that when two or more waves meet at a point, the resultant displacement is the
  69. Q251 mark · multiple choice· CAPE Physics Unit 1 · 2014 · Paper 1Item 25 refers to the following diagram which shows two waves, A and B. What is the phase difference between A and B?
  70. Q181 mark · multiple choice· CAPE Physics Unit 1 · 2015 · Paper 1Which of the following pairs of words BEST describes how a wave disturbance moves in relation to the direction of energy transfer for longitudinal and transverse waves?
  71. Q191 mark · multiple choice· CAPE Physics Unit 1 · 2015 · Paper 1Item 19 refers to the following two graphs which display the variation of displacement, with time and distance respectively, for the motion of a wave. What is the velocity of the wave?
  72. Q201 mark · multiple choice· CAPE Physics Unit 1 · 2015 · Paper 1What is the phase difference between the two points A and B on the following graph?
  73. Q211 mark · multiple choice· CAPE Physics Unit 1 · 2015 · Paper 1Two sources of water waves, X and Y, generate waves which are of identical frequency but out of phase by 180^\circ. The waves from X are of amplitude 5\text{ m} and the waves from Y are of amplitude 3\text{ m}.…
  74. Q241 mark · multiple choice· CAPE Physics Unit 1 · 2015 · Paper 1Stationary waves are produced by superimposing progressive waves of frequency 500\text{ Hz}. Successive nodes are separated by a distance of 2\text{ m}. What is the speed of the progressive waves?
  75. Q261 mark · multiple choice· CAPE Physics Unit 1 · 2015 · Paper 1Which of the following statements concerning sound and light waves is correct?
  76. Q191 mark · multiple choice· CAPE Physics Unit 1 · 2016 · Paper 1Which of the following waves is an example of longitudinal vibrations?
  77. Q201 mark · multiple choice· CAPE Physics Unit 1 · 2016 · Paper 1A ship sends down a pulse of sound to measure the depth of the sea. The echo is detected 0.1\text{ s} later. Assuming that sound waves travel five times faster in seawater than in the air, how deep is the sea at this…
  78. Q211 mark · multiple choice· CAPE Physics Unit 1 · 2016 · Paper 1Two progressive waves with a phase difference of \pi undergo superposition. If each of these waves has an amplitude of 5\text{ cm}, then what is their resulting amplitude?
  79. Q221 mark · multiple choice· CAPE Physics Unit 1 · 2016 · Paper 1A communications satellite sends information to Earth in the form of electromagnetic waves in bursts of 5\text{ ms} duration. If the wavelength of the electromagnetic waves is 2 \times 10^{-6}\text{ m}, the number…
  80. Q251 mark · multiple choice· CAPE Physics Unit 1 · 2016 · Paper 1The intensity of sound is directly proportional to the
  81. Q261 mark · multiple choice· CAPE Physics Unit 1 · 2016 · Paper 1What is the phase difference between A and B?
  82. Q271 mark · multiple choice· CAPE Physics Unit 1 · 2016 · Paper 1For a pipe with open ends and length l, which of the following diagrams of stationary waves indicates that the length of the tube is 1\lambda?
  83. Q191 mark · multiple choice· CAPE Physics Unit 1 · 2017 · Paper 1Item 19 refers to the following two graphs which display the variation of displacement, with time and distance respectively, for the motion of a wave. What is the velocity of the wave?
  84. Q201 mark · multiple choice· CAPE Physics Unit 1 · 2017 · Paper 1What is the phase difference between the two points, A and B, on the following graph?
  85. Q211 mark · multiple choice· CAPE Physics Unit 1 · 2017 · Paper 1Item 21 refers to the following diagram which represents the waveform produced when a speaker is held over one open end of a pipe of length 85\text{ cm}. If the speed of sound is 340\text{ m s}^{-1}, what is the…
  86. Q241 mark · multiple choice· CAPE Physics Unit 1 · 2017 · Paper 1Which of the following statements concerning sound and light waves is correct?
  87. Q251 mark · multiple choice· CAPE Physics Unit 1 · 2017 · Paper 1After investigating the refraction of water waves in a ripple tank, a student draws the following conclusions: I. When refraction occurs, the wavelength of the waves changes. II. When the waves are incident along the…
  88. 2(a)(i)1 mark· CAPE Physics Unit 1 · May/June 2021 · Paper 2Define the term amplitude.
  89. 2(a)(ii)1 mark· CAPE Physics Unit 1 · May/June 2021 · Paper 2Define the term period.
  90. 2(a)(i)2 marks· CAPE Physics Unit 1 · May/June 2022 · Paper 2State ONE similarity and ONE difference between a transverse wave and a longitudinal wave.
  91. 2(a)(ii)2 marks· CAPE Physics Unit 1 · May/June 2022 · Paper 2Give ONE example of a transverse wave and ONE example of a longitudinal wave.
  92. 2(b)3 marks· CAPE Physics Unit 1 · May/June 2022 · Paper 2Explain how a stringed instrument, such as a guitar, produces a sound.
  93. 2(c)(i)3 marks· CAPE Physics Unit 1 · May/June 2022 · Paper 2A standing wave with three antinodes is set up on the string. In the space provided, sketch and label a diagram to show how the string would look when this standing wave is set up.
  94. 2(c)(ii)4 marks· CAPE Physics Unit 1 · May/June 2022 · Paper 2Write an equation for the wavelength when the string has n antinodes and use this equation to calculate the wavelength of the wave sketched in (c)(i).
  95. 2(c)(iii)3 marks· CAPE Physics Unit 1 · May/June 2022 · Paper 2Using the equation in (c)(ii), show that the relationship between the frequency of the vibrator and the number of antinodes, n, is given by f = (v / 2l)n, where v is the wave velocity and l is the length of the string.
  96. 2(e)(i)3 marks· CAPE Physics Unit 1 · May/June 2022 · Paper 2List the order of the media through which the sound arrives at the other end of the pier. Give ONE reason for your response.
  97. 2(e)(ii)2 marks· CAPE Physics Unit 1 · May/June 2022 · Paper 2Calculate the time taken for the sound waves to travel through the water to reach the other end of the pier, given that the speed of sound in water is 1482 m s⁻¹.
  98. 2(e)2 marks· CAPE Physics Unit 1 · May/June 2023 · Paper 2Explain the meaning of the term 'diffraction of light'.
  99. 2(f)(i)5 marks· CAPE Physics Unit 1 · May/June 2023 · Paper 2Determine the number of rulings per mm on the grating.
  100. 2(f)(ii)3 marks· CAPE Physics Unit 1 · May/June 2023 · Paper 2Determine the highest order of fringes obtained on EACH side of the normal.
  101. 2(d)(i)2 marks· CAPE Physics Unit 1 · May/June 2024 · Paper 2State, in words, Snell's law.
  102. 2(d)(ii)2 marks· CAPE Physics Unit 1 · May/June 2024 · Paper 2Explain how total internal reflection occurs.
  103. 2(e)(i)3 marks· CAPE Physics Unit 1 · May/June 2024 · Paper 2Calculate the critical angle at the glass/liquid interface.
  104. 2(e)(ii)1 mark· CAPE Physics Unit 1 · May/June 2024 · Paper 2Calculate the angle of emergence of the ray from the cube.
  105. 2(a)2 marks· CAPE Physics Unit 1 · May/June 2026 · Paper 2Draw and label the period and amplitude on the sketch of the sinusoidal waveform in Figure 3.
  106. 2(c)(i)1 mark· CAPE Physics Unit 1 · May/June 2026 · Paper 2On Figure 5, draw and label the normal.
  107. 2(c)(ii)1 mark· CAPE Physics Unit 1 · May/June 2026 · Paper 2On Figure 5, draw and label the angle of incidence, i.
  108. 2(c)(iii)1 mark· CAPE Physics Unit 1 · May/June 2026 · Paper 2On Figure 5, draw and label the angle of refraction, r.
  109. 2(d)(iii)3 marks· CAPE Physics Unit 1 · May/June 2026 · Paper 2State the THREE conditions under which total internal reflection occurs.
  110. 2(d)(iv)2 marks· CAPE Physics Unit 1 · May/June 2026 · Paper 2Explain why it is preferable to use red light instead of white light in the experiment.
  111. 21 mark· Physics · Unit 1 Q2 2When you blow across the top of a soft-drink bottle as shown in Figure 2, a tone is heard. The pitch of the sound depends on how much drink is left in the bottle. This phenomenon is called cavity resonance. Scientists…
  112. 2(a)6 marks· Physics · Unit 1 Q2 2(a)With the aid of a labelled diagram, describe how the pieces of apparatus shown in Figure 3 can be used to disprove the theory of the particulate nature of light.
  113. 2(a)4 marks· Physics · Unit 1 Q2 2(a)Identify ONE similarity and ONE difference between transverse and longitudinal waves. Give an example of EACH type of wave.
  114. 2(a)2 marks· Physics · Unit 1 Q2 2(a)Explain how a stringed instrument such as a guitar produces a musical note.
  115. 2(a)4 marks· Physics · Unit 1 Q2 2(a)Outline ONE method by which the wavelength of the waves generated in the ripple tank could be measured accurately.
  116. 2(a)5 marks· Physics · Unit 1 Q2 2(a)Complete Table 1 and then plot a graph of f against 1/√V using the grid opposite. There is no need to start the graph at the origin.
  117. 2(a)(i)2 marks· Physics · Unit 1 Q2 2(a)(i)Describe and explain what is heard at a certain level as the water runs out at the lower end.
  118. 2(a)(i)1 mark· Physics · Unit 1 Q2 2(a)(i)What is meant by the term 'diffraction'?
  119. 2(a)(i)4 marks· Physics · Unit 1 Q2 2(a)(i)Draw rays to show the passage of white light through Figure 2, a diffraction grating.
  120. 2(a)(i)1 mark· Physics · Unit 1 Q2 2(a)(i)amplitude
  121. 2(a)(ii)1 mark· Physics · Unit 1 Q2 2(a)(ii)What name is given to this phenomenon?
  122. 2(a)(ii)1 mark· Physics · Unit 1 Q2 2(a)(ii)Draw rays to show the passage of white light through Figure 3, a triangular glass prism.
  123. 2(a)(ii)2 marks· Physics · Unit 1 Q2 2(a)(ii)Show on the diagram, the resulting waves after passage through the slits.
  124. 2(a)(ii)1 mark· Physics · Unit 1 Q2 2(a)(ii)phase difference between Points P and Q on the string
  125. 2(a)(iii)1 mark· Physics · Unit 1 Q2 2(a)(iii)Draw rays to show the passage of white light through Figure 4, a rectangular glass block.
  126. 2(a)(iii)2 marks· Physics · Unit 1 Q2 2(a)(iii)speed.
  127. 2(a)(iii)2 marks· Physics · Unit 1 Q2 2(a)(iii)Mark on Figure 1, TWO places where constructive interference occurs and TWO places where destructive interference occurs. (Use a circle O for constructive interference and an X for destructive interference.)
  128. 2(a)(iv)2 marks· Physics · Unit 1 Q2 2(a)(iv)In the space below draw wave diagrams to show how TWO waves could superpose to produce constructive and destructive interference.
  129. 2(b)1 mark· Physics · Unit 1 Q2 2(b)The apparatus shown in Figure 1 may be used to investigate waves on strings.
  130. 2(b)4 marks· Physics · Unit 1 Q2 2(b)With the aid of an appropriate diagram, show that for Young's double slit experiment, y = λ D/a, where λ is the wavelength of the source, a is the slit separation, D is the distance between the slits and the screen, and…
  131. 2(b)3 marks· Physics · Unit 1 Q2 2(b)A rifle was fired in a valley. The echo was heard 8.3 seconds later. If the temperature in the valley is 10 °C, determine the distance between the shooter and the reflecting valley wall. (Assume that the speed of sound…
  132. 2(b)5 marks· Physics · Unit 1 Q2 2(b)Use the graph to find the speed of sound during the experiment.
  133. 2(b)4 marks· Physics · Unit 1 Q2 2(b)Show that T, the period of the waves, in terms of g and λ is given by T = sqrt(2πλ / g).
  134. 2(b)2 marks· Physics · Unit 1 Q2 2(b)Find the gradient of the graph.
  135. 2(b)(i)1 mark· Physics · Unit 1 Q2 2(b)(i)By varying the setting on the signal generator a standing wave with 3 anti-nodes may be set up on the string. In the space below draw a diagram to show how the string would look when this standing wave is set up. (Note:…
  136. 2(b)(i)1 mark· Physics · Unit 1 Q2 2(b)(i)State the phase difference in the motion of the points on the string labelled X and Y.
  137. 2(b)(i)5 marks· Physics · Unit 1 Q2 2(b)(i)Calculate the value of θ.
  138. 2(b)(ii)1 mark· Physics · Unit 1 Q2 2(b)(ii)Calculate the wavelength of the wave you have drawn.
  139. 2(b)(ii)2 marks· Physics · Unit 1 Q2 2(b)(ii)Distinguish between the terms 'antinode' and 'node' when used to describe stationary waves on a string.
  140. 2(b)(ii)1 mark· Physics · Unit 1 Q2 2(b)(ii)Describe what happens when the angle of incidence θ₁ is 55°.
  141. 2(b)(ii)1 mark· Physics · Unit 1 Q2 2(b)(ii)Explain why at Q, a point midway between P and R, the signal received is very weak.
  142. 2(b)(iii)3 marks· Physics · Unit 1 Q2 2(b)(iii)Write an equation for the wavelength when the string has n anti-nodes and use this to show that the relationship between the frequency of the vibrator and the number of anti-nodes is f = (v/2L)n where v is the wave…
  143. 2(b)(iii)1 mark· Physics · Unit 1 Q2 2(b)(iii)State the number of antinodes shown on Figure 3.
  144. 2(b)(iii)2 marks· Physics · Unit 1 Q2 2(b)(iii)At what angle to the mid-line would the next minimum of the interference pattern occur?
  145. 2(c)2 marks· Physics · Unit 1 Q2 2(c)Use the graph to calculate the speed of the waves in water.
  146. 2(c)1 mark· Physics · Unit 1 Q2 2(c)Find the end connection for the tube.
  147. 2(c)3 marks· Physics · Unit 1 Q2 2(c)Use your answer to (b) to determine the velocity of sound in the bottle.
  148. 2(c)2 marks· Physics · Unit 1 Q2 2(c)Calculate the value of T when the wavelength is 0.8 m.
  149. 2(c)(i)3 marks· Physics · Unit 1 Q2 2(c)(i)Calculate the wavelength of the monochromatic light used in this experiment.
  150. 2(c)(ii)2 marks· Physics · Unit 1 Q2 2(c)(ii)On a suitable sketch, indicate the intensity variation of the fringes from the central maximum to the fourth bright fringe.
  151. 2(c)(ii)2 marks· Physics · Unit 1 Q2 2(c)(ii)Hence, determine the frequency of the standing wave.
  152. 2(d)(i)2 marks· Physics · Unit 1 Q2 2(d)(i)Complete the diagram below to show the different regions of the electromagnetic spectrum.
  153. 2(d)(ii)3 marks· Physics · Unit 1 Q2 2(d)(ii)Write down approximate values for the following: λ_1, λ_2, λ_3, λ_4.
  154. 2(f)(i)2 marks· Physics · Unit 1 Q2 2(f)(i)Define the term 'refraction'.
  155. 2(f)(ii)5 marks· Physics · Unit 1 Q2 2(f)(ii)Determine, by calculation, whether the ray will pass through PR.
  156. 2(f)(iii)2 marks· Physics · Unit 1 Q2 2(f)(iii)On the diagram in Figure 3, draw the passage of the ray of light through the glass prism.
  157. 2(i)6 marks· Physics · Unit 1 Q2 2(i)Assuming that the ship travels in a straight line and the depth of the sea bed at Point A is 100 m, calculate the depth at Point B. Hence, complete the Table 1 above. Put calculations in the space below.
  158. 2(ii)2 marks· Physics · Unit 1 Q2 2(ii)Complete Figure 2 below to show the shape of the sea bed over the distance travelled by the ship. The position of the sea bed at the starting point is indicated for you.
  159. 2(iii)2 marks· Physics · Unit 1 Q2 2(iii)State TWO ways in which a more precise map of the sea bed could be obtained.
  160. 5(a)1 mark· Physics · Unit 1 Q5 5(a)A diffraction grating is illuminated by a parallel beam of light with a mixture of three wavelengths in the yellow, blue and red parts of the visible spectrum as shown in Figure 4.
  161. 5(a)3 marks· Physics · Unit 1 Q5 5(a)With the aid of a diagram, explain what happens to the waves. What is this phenomenon called?
  162. 5(a)3 marks· Physics · Unit 1 Q5 5(a)If the length of the wire, L, is 0.4 m, calculate the speed of the waves moving along it.
  163. 5(a)7 marks· Physics · Unit 1 Q5 5(a)Briefly describe a laboratory experiment to prove Snell's law. Indicate any precautionary measures that must be taken during this experiment.
  164. 5(a)1 mark· Physics · Unit 1 Q5 5(a)In order for waves to produce an observable interference pattern, they must be coherent. Explain what is meant by the term 'coherent' when used in this context.
  165. 5(a)(i)4 marks· Physics · Unit 1 Q5 5(a)(i)Distinguish clearly between 'refraction' and 'diffraction' of light. Draw ray diagrams, ONE in EACH case, to illustrate EACH phenomenon.
  166. 5(a)(i)6 marks· Physics · Unit 1 Q5 5(a)(i)Differentiate between the terms 'diffraction' and 'refraction'.
  167. 5(a)(i)8 marks· Physics · Unit 1 Q5 5(a)(i)Discuss with the aid of suitable diagrams the role of diffraction and interference of waves in the production of this spectrum.
  168. 5(a)(ii)1 mark· Physics · Unit 1 Q5 5(a)(ii)Describe how the width of the aperture through which a wave is passing affects the diffraction of the wave.
  169. 5(a)(ii)3 marks· Physics · Unit 1 Q5 5(a)(ii)Discuss how interference and diffraction contribute to the action of a diffraction grating.
  170. 5(a)(ii)1 mark· Physics · Unit 1 Q5 5(a)(ii)Explain why Beam A in Figure 4 must be the blue light and also identify the colours of the Beams B and C.
  171. 5(a)(iii)1 mark· Physics · Unit 1 Q5 5(a)(iii)Explain how a diffraction grating produces a spectrum.
  172. 5(a)(iii)1 mark· Physics · Unit 1 Q5 5(a)(iii)Why does the central beam (labelled O) contain a mixture of all three colours?
  173. 5(b)5 marks· Physics · Unit 1 Q5 5(b)Calculate the wavelengths of the two colours.
  174. 5(b)1 mark· Physics · Unit 1 Q5 5(b)The spectrum of sodium contains two yellow lines close together with wavelengths of 589 nm and 590 nm as shown in Figure 5. To view these lines separately an experimenter used a diffraction grating with 6 x 10⁵ lines…
  175. 5(b)(i)2 marks· Physics · Unit 1 Q5 5(b)(i)What will happen to the speed of the waves moving along the wire if the tension is doubled (all other factors remaining the same)?
  176. 5(b)(i)5 marks· Physics · Unit 1 Q5 5(b)(i)With the aid of a diagram, show that the distance, y, between the centre of the interference fringe pattern and the first bright fringe is given by y = λD/a.
  177. 5(b)(i)2 marks· Physics · Unit 1 Q5 5(b)(i)By how much does the frequency decrease when the wavelength is changed from 3 mm to 8 mm?
  178. 5(b)(i)2 marks· Physics · Unit 1 Q5 5(b)(i)Calculate the speed of light in Glass Block A. (Refractive index of Glass Block A = 1.80.)
  179. 5(b)(i)2 marks· Physics · Unit 1 Q5 5(b)(i)Calculate the slit spacing of the diffraction grating, expressed in metres.
  180. 5(b)(i)2 marks· Physics · Unit 1 Q5 5(b)(i)Explain why there are positions between the speaker and the wall where intensity is a minimum, and why these minima do NOT actually have zero intensity.
  181. 5(b)(i)1 mark· Physics · Unit 1 Q5 5(b)(i)Explain why there are positions between the speaker and the wall where intensity is a minimum and why these minima do NOT actually have zero intensity.
  182. 5(b)(i)7 marks· Physics · Unit 1 Q5 5(b)(i)Calculate the value of the HIGHEST order spectrum which can be used to view the sodium lines.
  183. 5(b)(ii)2 marks· Physics · Unit 1 Q5 5(b)(ii)Show that the angle θ in the figure is approximately 30 degrees.
  184. 5(b)(ii)1 mark· Physics · Unit 1 Q5 5(b)(ii)What will happen to the speed of the waves moving along the wire if the length is doubled (all other factors remaining the same)?
  185. 5(b)(ii)2 marks· Physics · Unit 1 Q5 5(b)(ii)With a pair of slits, spacing 0.20 mm, at a distance of 0.50 m from the screen, the bright fringes are 1.4 mm apart. What is the wavelength, in nm, of the light produced by the laser?
  186. 5(b)(ii)5 marks· Physics · Unit 1 Q5 5(b)(ii)Calculate the angular positions of the two spectral lines.
  187. 5(b)(ii)3 marks· Physics · Unit 1 Q5 5(b)(ii)Determine the frequency setting of the signal generator.
  188. 5(b)(ii)1 mark· Physics · Unit 1 Q5 5(b)(ii)What is the angular separation of the two sodium lines in this spectrum?
  189. 5(b)(ii)1 mark· Physics · Unit 1 Q5 5(b)(ii)The points labelled X on Figure 7 are the only three points of minimum intensity detected at a certain frequency setting. What is the frequency?
  190. 5(b)(iii)2 marks· Physics · Unit 1 Q5 5(b)(iii)The refractive index of Glass Block C is 1.40. Calculate the critical angle between Glass Block A and Glass Block C.
  191. 5(b)(iii)1 mark· Physics · Unit 1 Q5 5(b)(iii)Calculate the angular separation between the two spectral lines.
  192. 5(b)(iii)8 marks· Physics · Unit 1 Q5 5(b)(iii)When the signal generator is set at 165 Hz how far from the wall is the last maximum intensity position? [Velocity of sound = 330 m s⁻¹]
  193. 5(b)(iv)2 marks· Physics · Unit 1 Q5 5(b)(iv)State what happens to the light when it reaches the boundary between Glass Block A and Glass Block C. Justify your answer.
  194. 5(c)4 marks· Physics · Unit 1 Q5 5(c)With the aid of calculations, determine what would be observed at an angle of 54.8°.
  195. 5(c)(i)7 marks· Physics · Unit 1 Q5 5(c)(i)Determine the following properties of the wave: Amplitude
  196. 5(c)(i)4 marks· Physics · Unit 1 Q5 5(c)(i)Find the number of rulings per mm on the grating.
  197. 5(c)(ii)1 mark· Physics · Unit 1 Q5 5(c)(ii)Determine the following properties of the wave: Wavelength
  198. 5(c)(ii)3 marks· Physics · Unit 1 Q5 5(c)(ii)Find the number of spectra obtained on either side of the normal.
  199. 5(c)(iii)1 mark· Physics · Unit 1 Q5 5(c)(iii)Determine the following properties of the wave: Frequency
  200. 5(c)(iv)1 mark· Physics · Unit 1 Q5 5(c)(iv)Determine the following properties of the wave: Speed
  201. 5(d)3 marks· Physics · Unit 1 Q5 5(d)Briefly describe a practical application in which this type of sound wave may be used.
  202. 6(a)5 marks· Physics · Unit 1 Q6 6(a)Explain the physical principles of the production of spectra by diffraction gratings. Include in your account an explanation of how the zero order, first order and second order spectra are produced.
  203. 6(a)(i)8 marks· Physics · Unit 1 Q6 6(a)(i)Explain what is meant by 'refraction of sound waves'.
  204. 6(a)(i)5 marks· Physics · Unit 1 Q6 6(a)(i)Define the terms 'longitudinal wave' and 'frequency'.
  205. 6(a)(i)5 marks· Physics · Unit 1 Q6 6(a)(i)Describe how the displacements of P and Q vary with time.
  206. 6(a)(i)2 marks· Physics · Unit 1 Q6 6(a)(i)Explain how such a wave may be formed from two progressive waves, CLEARLY indicating any conditions that MUST be fulfilled.
  207. 6(a)(ii)1 mark· Physics · Unit 1 Q6 6(a)(ii)Sketch and label graphs to represent displacement against position for the wave above.
  208. 6(a)(ii)3 marks· Physics · Unit 1 Q6 6(a)(ii)Compare the amplitudes of particle vibrations at A, B and C and the phases at B and C.
  209. 6(a)(ii)1 mark· Physics · Unit 1 Q6 6(a)(ii)Draw sketches to show the refraction of sound waves as the waves travel from cool air to warmer air and from warm air to cooler air.
  210. 6(a)(ii)1 mark· Physics · Unit 1 Q6 6(a)(ii)Calculate the speed of the waves.
  211. 6(a)(ii)b)1 mark· Physics · Unit 1 Q6 6(a)(ii)b)Sketch and label graphs to represent displacement against time, for the wave above.
  212. 6(a)(iii)1 mark· Physics · Unit 1 Q6 6(a)(iii)Hence explain why sound waves are more audible at night than in the day.
  213. 6(a)(iii)1 mark· Physics · Unit 1 Q6 6(a)(iii)For EACH graph drawn in (a)(ii) insert the scale on the horizontal axis.
  214. 6(b)3 marks· Physics · Unit 1 Q6 6(b)Describe an experiment to demonstrate the diffraction of plane water waves in a ripple tank for a narrow gap. Draw a diagram of what you would expect to see when looking down at the surface of the ripple tank.
  215. 6(b)4 marks· Physics · Unit 1 Q6 6(b)Using these data, calculate a value for the speed of sound in air.
  216. 6(b)(i)1 mark· Physics · Unit 1 Q6 6(b)(i)Draw a ray diagram to show the production of the zero, first and second order spectra of this light from this source by a diffraction grating.
  217. 6(b)(i)3 marks· Physics · Unit 1 Q6 6(b)(i)Calculate the wavelength of the waves emitted by the loudspeaker.
  218. 6(b)(ii)1 mark· Physics · Unit 1 Q6 6(b)(ii)The diffraction grating produces a second order spectrum for the red light of wavelength 630 nm at an angle of 43.9° from the normal to the grating. What is the spacing of the lines in the grating? How many lines per…
  219. 6(b)(iii)1 mark· Physics · Unit 1 Q6 6(b)(iii)Find the angle of deviation from the normal for the first order red light and first order yellow light of wavelength 570 nm.
  220. 6(b)(iv)15 marks· Physics · Unit 1 Q6 6(b)(iv)Show that the yellow light produces a 3rd order spectrum but the red light can only produce two orders with this grating.
  221. 6(c)4 marks· Physics · Unit 1 Q6 6(c)Explain why this occurs.
  222. 6(c)(i)12 marks· Physics · Unit 1 Q6 6(c)(i)Determine the positions along the line PQR where destructive interference causes the intensity to fall to zero.
  223. 6(c)(i)8 marks· Physics · Unit 1 Q6 6(c)(i)Calculate the amplitude of the wave at the chair on the perpendicular bisector (centre line) of the line between the speakers.
  224. 6(c)(ii)1 mark· Physics · Unit 1 Q6 6(c)(ii)At what MINIMUM distance, D, to the right of this central chair is there a MAXIMUM in the sound intensity?
  225. 6(d)3 marks· Physics · Unit 1 Q6 6(d)For a string of mass 1.6 x 10⁻³ kg and length 0.80 m find its fundamental frequency when a mass of 1 kg is hung from its end.
  226. 6(e)3 marks· Physics · Unit 1 Q6 6(e)Directly below EACH figure in your answer booklet, draw on the dotted line, the state of the water surface one quarter of a period later.
  227. 7(a)4 marks· Physics · Unit 1 Q7 7(a)What is the speed of the wave?
  228. 7(a)2 marks· Physics · Unit 1 Q7 7(a)Explain the phenomena involved in the formation of a diffraction pattern by a plane diffraction grating.
  229. 7(a)(i)1 mark· Physics · Unit 1 Q7 7(a)(i)Define the term 'refractive index' of a medium as it applies to light waves.
  230. 7(a)(i)1 mark· Physics · Unit 1 Q7 7(a)(i)Derive the formula y = λD/a for interference of light waves from a double slit where y is the spacing of the fringes on a screen at a distance D from a double slit with spacing a and λ is the wavelength of the…
  231. 7(a)(i)8 marks· Physics · Unit 1 Q7 7(a)(i)State the conditions necessary to observe interference of light using TWO sources of light.
  232. 7(a)(ii)1 mark· Physics · Unit 1 Q7 7(a)(ii)Describe a demonstration of Young's double slit inference.
  233. 7(a)(ii)2 marks· Physics · Unit 1 Q7 7(a)(ii)Draw a diagram showing the refraction of waves moving from one medium to another in which the velocity is slower.
  234. 7(a)(ii)8 marks· Physics · Unit 1 Q7 7(a)(ii)Explain why the formula gives only an approximate value.
  235. 7(a)(iii)1 mark· Physics · Unit 1 Q7 7(a)(iii)State the formula for the fringe spacing and state the meaning of EACH of the terms used.
  236. 7(a)(iii)3 marks· Physics · Unit 1 Q7 7(a)(iii)Derive the law of refraction, n₁ sin θ₁ = n₂ sin θ₂, for waves moving from one medium to another.
  237. 7(a)(iv)2 marks· Physics · Unit 1 Q7 7(a)(iv)State the relationship between the frequencies of the waves in the two media and the relationship between wavelengths in the two media.
  238. 7(b)6 marks· Physics · Unit 1 Q7 7(b)Describe, with the aid of a diagram, an experiment to measure the wavelength of yellow light from a straight filament bulb, using a diffraction grating having N lines per metre.
  239. 7(b)(i)8 marks· Physics · Unit 1 Q7 7(b)(i)Describe, with the aid of a labelled diagram, an experiment to demonstrate interference of sound waves.
  240. 7(b)(i)1 mark· Physics · Unit 1 Q7 7(b)(i)Find the distances PX and QX from the speakers to the first maximum at X and hence find the wavelength of the sound waves.
  241. 7(b)(i)12 marks· Physics · Unit 1 Q7 7(b)(i)Calculate the wavelength of the light used and state its colour.
  242. 7(b)(i)6 marks· Physics · Unit 1 Q7 7(b)(i)What is the speed of EACH of these colours of light in the glass?
  243. 7(b)(ii)8 marks· Physics · Unit 1 Q7 7(b)(ii)Why are sound waves described as progressive longitudinal waves?
  244. 7(b)(ii)1 mark· Physics · Unit 1 Q7 7(b)(ii)What value does the formula y = λD/a give for the wavelength of the sound waves?
  245. 7(b)(ii)1 mark· Physics · Unit 1 Q7 7(b)(ii)State whether or not there would be a bright or dark fringe at the centre of the pattern and explain your answer.
  246. 7(b)(ii)6 marks· Physics · Unit 1 Q7 7(b)(ii)A mixture of red and blue light is incident on the prism as shown in Figure 8. What is the angle between the two emergent rays?
  247. 7(b)(iii)1 mark· Physics · Unit 1 Q7 7(b)(iii)Discuss the fact that the values given in (b) (i) and (ii) are different.
  248. 7(b)(iii)1 mark· Physics · Unit 1 Q7 7(b)(iii)Describe what would be seen if ONE slit were to be covered by an opaque material.
  249. 7(b)(iv)1 mark· Physics · Unit 1 Q7 7(b)(iv)What is the frequency of the sound from the speakers?
  250. 7(b)(iv)1 mark· Physics · Unit 1 Q7 7(b)(iv)Describe the effect of replacing the monochromatic light source with one of white light when using BOTH slits.
  251. 7(b)(v)12 marks· Physics · Unit 1 Q7 7(b)(v)The phase of speaker P is changed by 180°. What effect will this have on the sound heard at points O and X ?
  252. 7(b)(v)1 mark· Physics · Unit 1 Q7 7(b)(v)What would be the effect on the fringes of gradually increasing the width of the single source slit?
  253. 7(c)6 marks· Physics · Unit 1 Q7 7(c)A larger dispersion of the two colours of light may be produced by using a diffraction grating. What is the angle between rays of the two colours if a grating with 1200 lines per millimetre is used? The wavelength of…
  254. 7(c)(i)12 marks· Physics · Unit 1 Q7 7(c)(i)Find the angular breadth of the first-order spectrum. Show your result on a labelled diagram.
  255. 7(c)(i)8 marks· Physics · Unit 1 Q7 7(c)(i)Use the equation above to calculate the velocity of a wave along the string.
  256. 7(c)(ii)1 mark· Physics · Unit 1 Q7 7(c)(ii)Show that the second-order spectrum of the white light overlaps with the third-order spectrum.
  257. 7(c)(ii)8 marks· Physics · Unit 1 Q7 7(c)(ii)Calculate this frequency. What can you say about the wavelength of the wave?

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