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1.7.1a Energy stores and energy transfers

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Question 116

A pumped-storage scheme is used to store energy. During periods of low electricity demand, water is pumped from a lower reservoir up through a pipe to a higher reservoir.

What are the main energy transfers taking place as the water is being pumped up?

A

gravitational potential energy→kinetic energy→electrical energy\text{gravitational potential energy} \rightarrow \text{kinetic energy} \rightarrow \text{electrical energy}gravitational potential energy→kinetic energy→electrical energy

B

electrical energy→kinetic energy→gravitational potential energy\text{electrical energy} \rightarrow \text{kinetic energy} \rightarrow \text{gravitational potential energy}electrical energy→kinetic energy→gravitational potential energy

C

chemical energy→electrical energy→gravitational potential energy\text{chemical energy} \rightarrow \text{electrical energy} \rightarrow \text{gravitational potential energy}chemical energy→electrical energy→gravitational potential energy

D

kinetic energy→gravitational potential energy→electrical energy\text{kinetic energy} \rightarrow \text{gravitational potential energy} \rightarrow \text{electrical energy}kinetic energy→gravitational potential energy→electrical energy

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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