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1.7 Energy, work and power

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Question 240

A battery-powered toy car accelerates from rest along a flat, horizontal track.

Which row in the table correctly describes the changes in energy stores?

DecreasesIncreasesAchemical energy store of the batterykinetic energy store of the carBkinetic energy store of the carchemical energy store of the batteryCgravitational potential energy store of the carkinetic energy store of the carDchemical energy store of the batterygravitational potential energy store of the car \begin{array}{|c|l|l|} \hline & \text{Decreases} & \text{Increases} \\ \hline \textbf{A} & \text{chemical energy store of the battery} & \text{kinetic energy store of the car} \\ \hline \textbf{B} & \text{kinetic energy store of the car} & \text{chemical energy store of the battery} \\ \hline \textbf{C} & \text{gravitational potential energy store of the car} & \text{kinetic energy store of the car} \\ \hline \textbf{D} & \text{chemical energy store of the battery} & \text{gravitational potential energy store of the car} \\ \hline \end{array} ABCD​Decreaseschemical energy store of the batterykinetic energy store of the cargravitational potential energy store of the carchemical energy store of the battery​Increaseskinetic energy store of the carchemical energy store of the batterykinetic energy store of the cargravitational potential energy store of the car​​
A

Row A

B

Row B

C

Row C

D

Row D

Markscheme

1.7 Energy, work and power Questions

  1. IGCSE
  2. /Physics
  3. /1.7 Energy, work and power

533 exam-style questions on CIE IGCSE Physics 1.7 Energy, work and power, covering 1.7.1a Energy stores and energy transfers, 1.7.1b Conservation of energy, 1.7.1c Kinetic and gravitational potential energy, 1.7.2 Work done, 1.7.3 Energy resources, 1.7.3a Energy resources and electricity generation, 1.7.3b Nuclear fusion as an energy source, 1.7.3c Efficiency of energy transfer, and 1.7.4 Power. Each one has a worked solution and a mark scheme showing where the marks go.

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