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Activity 1.
Write True if the statement is correct or False if it is not. Use a
separate sheet of paper to write your answers.
1. A light bulb changes electrical energy to sound energy.
2. Electric motors change electrical energy to mechanical energy.
3. An electric stove changes electrical energy to thermal energy in a similar
way as the bread toaster does.
4. The solar cells on a calculator absorb light energy and transform it into
sound energy
5. Light energy is changed to chemical energy during photosynthesis.
6. The electrical energy flowing along the wires is transformed by the electric
fan into mechanical energy.
7. The electric motor in a food mixer changes electrical energy to mechanical
energy
8. The Sun transforms light energy into chemical energy.
9. A bolt of lightning striking a tree is an example of mechanical
energy transformed into heat or thermal energy.
10. The sun's energy also powers solar cells, which can be used to create
electricity.​