Question

A. Tick (✓) the correct word and cross (x) the wrong one.
1. All our actions need energy /machines.
2. Force / speed is required to push or pull the objects.
3. Gravity / friction opposes the movement of a rolling ball.
4. The energy of the sun is called atomic / solar energy.
5. Chemical energy is used to produce paper / electricity.​

Answer 1

1 - energy

2- force

3- friction

4- solar energy

5- paper

Answer 2

Answer:

1 energy

2 force

3 friction

4 solar energy

5 paper

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