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1 markEnergy

CSEC Physics · May/June 2014 · Paper 2 · Question 2(a)(iii)

The Joule is the unit of energy and has two equivalent derived units.

State ONE advantage of using solar energy in the Caribbean.

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Other parts of this question

  1. 2(a)(i)In Figure 1, indicate inside the bubbles, two equivalent derived units for the Joule.[2 marks]
  2. 2(a)(ii)Solar energy is one of the popular alternative sources of energy. State ONE application of solar energy.[1 mark]
  3. 2(a)(iv)A variety of alternative energy technologies are being used in the Caribbean and globally. Other than solar energy, complete Table 3 to show three other types…[3 marks]
  4. 2(b)(i)Calculate the gravitational potential energy of the ball at the point of release, A.[3 marks]
  5. 2(b)(ii)Calculate the final velocity of the ball on reaching the ground 1.56 seconds later (assume no loss of energy as the ball falls).[3 marks]
  6. 2(b)(iii)Calculate the ball's momentum when it hits the ground. [Acceleration due to gravity, g, = 9.8 m s⁻²][2 marks]

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