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1.7.1a Energy stores and energy transfers

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Question 103

A parcel of mass 2.5 kg is dropped from a height of 60 m. As it falls, 20% of its initial gravitational potential energy is transferred to thermal energy.

Taking the acceleration due to gravity as g=9.8 m/s2g = 9.8\text{ m/s}^2g=9.8 m/s2, what is the kinetic energy of the parcel just before it hits the ground?

A

294 J294\text{ J}294 J

B

1176 J1176\text{ J}1176 J

C

1470 J1470\text{ J}1470 J

D

1500 J1500\text{ J}1500 J

Markscheme

1.7.1a Energy stores and energy transfers Questions

  1. IGCSE
  2. /Physics
  3. /1.7.1a Energy stores and energy transfers

229 exam-style questions on CIE IGCSE Physics 1.7.1a Energy stores and energy transfers. Each one has a worked solution and a mark scheme showing where the marks go.

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