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8 Energy – forces doing work

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Question 52
F

An electric shower has a power of 9.0 kW.

A small lamp has a power of 9 W.

a.

Give the power of the shower in watts.

[1]
b.

State the energy transferred by the shower each second.

[1]
c.

The shower is used for 5.0 minutes.

Calculate the energy transferred by the shower.

[3]
d.

Calculate the time the lamp would need to be switched on to transfer the same energy as the shower transfers in 5.0 minutes.

Give your answer in hours.

[3]
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8 Energy – forces doing work Questions

  1. GCSE
  2. /Physics
  3. /8 Energy – forces doing work

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