c) David went into his room. He lit the gas heater and played his guitar. Write the useful
energy change that took place in each example.
(2 marks)
Input energy
Example
Output energy
d) Which fossil fuel is used to make the heater work? __________________
(1 mark)
C
9. This question is about electricity.
a) There are three hazards in the picture. They are
labelled A, B and C. Choose ONE of the hazards
and explain the danger shown in the picture.
B
Hazard: __________
Explanation:
A
______________________________________________________________________
_____________________________________________________________ (2 marks)
Integrated Science – Form 1 Secondary – L5 to L8 – 2014
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