P6 Energy

3. Energy is the ability to do _______.
5. Oil, natural gas and ____ are examples of fossil fuels.
8. A ____ source of energy can be replenished easily and does not run out.
9. Using energy-saving ___ helps to conserve energy.
11. Energy can only be _____ from one form to another.
12. Energy cannot be _____ or destroyed.
13. Gravitational potential energy is the form of energy stored by objects due to their ____ above the ground.
14. Solar panels are ineffective in the dark and on ____ days.

1. Renewable sources energy do not cause ____.
2. Sound energy is produced by ______ objects.
4. _____ potential energy is energy that is stored in any kind of food, fuel or batteries.
5. A stretched or _____ spring has elastic potential energy.
6. Any object that moves has _____ energy.
7. All living things depend either directly or ______ on the energy from the Sun.
10. Kinetic energy depends on mass and _____ of moving object.