CSEC Physics · 1997 · Paper 2

34 questions and parts from this paper. Open one to see it in full, then practise it on Quelpr and get it marked against the mark scheme.

1. 1(a)3 marksIndicate, with a short arrow, labelled F, the direction of the force exerted on the negatively charged object, and draw the electric field in the region of the two charges using arrows to show its direction.
2. 1(b)(i)1 markOn Figure 2, indicate with an arrow the direction of the force exerted by the magnetic field on this conductor.
3. 1(b)(ii)2 marksHow could the force on this conductor be increased?
4. 1(b)(iii)2 marksDraw a labelled diagram to show how you could produce a uniform magnetic field like the one on page 2.
5. 1(c)(i)3 marksExplain why the coil begins to rotate when a current is passed through it.
6. 1(c)(ii)1 markWhat extra device is needed to ensure that the coil continues to rotate?
7. 1(d)(i)2 marksDraw the magnetic field near to the conductor, using arrows to indicate the direction of the field.
8. 1(d)(ii)2 marksAnother wire, parallel to the first, carrying current in the SAME direction, is positioned at Point P. On Figure 4, show the direction of the force on this conductor and clearly label it with an F.
9. 2(a)2 marksDistinguish between vector and scalar quantities.
10. 2(b)(i)1 markFind the distance travelled in the 20 s.
11. 2(b)(ii)2 marksFind the average speed of the car.
12. 2(b)(iii)1 markWhat is the average velocity for the complete journey?
13. 2(c)(i)2 marksHow would Aristotle's 'law of motion' explain this observation?
14. 2(c)(ii)1 markComplete the following statement of Newton's first law of motion: If the resultant force on a body is zero it will remain at rest or ...
15. 2(c)(iii)2 marksExplain why the driver of the car must push harder on the gas pedal to keep the car moving at 80 km h⁻¹.
16. 2(d)5 marksThe pilot flies the plane at 80 km h⁻¹, due south relative to the air. Use a scale diagram to find with what velocity and in what direction the plane will travel relative to the Earth.
17. 3(a)(i)1 markDetermine the wavelength of the waves before they reach the barrier.
18. 3(a)(ii)1 markWhat will be the wavelength of the waves after they pass through the gap?
19. 3(a)(iii)2 marksComplete Figure 7 to show what happens to the waves after passing through the gap.
20. 3(a)(iv)2 marksOn Figure 8, show what happens when the gap in the barrier is wider.
21. 3(b)(i)1 markExplain the term 'constructive interference'.
22. 3(b)(ii)2 marksMark, with the letter C, TWO places on Figure 9 where constructive interference is taking place.
23. 3(b)(iii)1 markExplain the term 'destructive interference'.
24. 3(b)(iv)2 marksMark, with a letter D, TWO places on Figure 9 where destructive interference is occurring.
25. 3(b)(v)2 marksDescribe what you would expect to hear as you walk along the line, PQ.
26. 3(b)(vi)1 markIf the two speakers were moved closer together, what effect would this have on what you hear as you walk along the line PQ?
27. 4(a)(i)1 markAt what temperature would you expect water to boil?
28. 4(a)(ii)2 marksWhat TWO factors lead to the pressure being lower at greater altitudes?
29. 4(b)(i)4 marksIf the weight used is 0.5 N, what is the pressure due to this weight? Convert your answer to kPa.
30. 4(b)(ii)1 markWhat is the total pressure acting on the contents if atmospheric pressure is 100 kPa?
31. 4(b)(iii)1 markAt what temperature would the water in the pressure cooker boil?
32. 4(b)(iv)1 markWhat effect might the temperature identified in (iii) above have on the time it takes for the food to cook?
33. 4(b)(v)1 markTo prevent accidents, the safety valve opens if the pressure inside the pressure cooker exceeds twice the pressure of the atmosphere. At what temperature does this occur?
34. 4(c)3 marksIn terms of the kinetic theory of gases, why does the pressure of the gas in a sealed container rise when the temperature rises?