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1.2 Conservation and dissipation of energy

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Question 7
F

A student writes three sentences about energy. All three sentences are wrong.

• Sentence 1: When a lamp is switched on, the energy from the mains supply is used up.

• Sentence 2: The energy wasted by a machine is destroyed.

• Sentence 3: A closed system loses energy to the surroundings.

a.

Write a corrected version of Sentence 1.

[1]
b.

Write a corrected version of Sentence 2.

[1]
c.

Write a corrected version of Sentence 3.

[1]
d.

Give one wasted energy transfer that takes place in a lamp.

[1]
Markscheme

1.2 Conservation and dissipation of energy Questions

  1. GCSE
  2. /Physics
  3. /1.2 Conservation and dissipation of energy

40 exam-style questions on AQA GCSE Physics 1.2 Conservation and dissipation of energy, covering 1.2.1 Energy transfers in a system and 1.2.2 Efficiency. Each one has a worked solution and a mark scheme showing where the marks go.

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