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3.1 Energy stores and calculations

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Question 1

A lift rises through a tall building and slows down as it approaches the top floor. During this part of its journey, the lift's gravitational store increases by 530 kJ and its kinetic store decreases by 40 kJ. A further 210 kJ is transferred to thermal stores of the motor, cables and surroundings. How much energy is transferred electrically to the lift's motor during this part of the journey?

[1]
A

700 kJ700\ \mathrm{kJ}700 kJ

B

740 kJ740\ \mathrm{kJ}740 kJ

C

280 kJ280\ \mathrm{kJ}280 kJ

D

780 kJ780\ \mathrm{kJ}780 kJ

Markscheme

3.1 Energy stores and calculations Questions

  1. GCSE
  2. /Physics
  3. /3.1 Energy stores and calculations

121 exam-style questions on Edexcel GCSE Physics 3.1 Energy stores and calculations, covering 3.1.1 Gravitational potential energy, 3.1.2 Kinetic energy, and 3.1.3 Energy transfers and conservation of energy. Each one has a worked solution and a mark scheme showing where the marks go.

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