Energy
Across
- 7. Turbines convert the kinetic energy in the wind into mechanical power. A generator can convert mechanical power into electricity.
- 9. A infinite sources of energy
- 10. Is the energy possessed by an object due to its motion or its position
- 14. Is heat that comes from inside Earth
- 15. Is organic material which has stored sunlight in the form of chemical energy.
- 17. Is a clean, renewable and reliable energy source which converts kinetic energy from falling ___ into electricity.
- 18. Is generated by the movement of electrons
- 20. Fuel Include petroleum (oil), coal, and natural gas.
Down
- 1. Comes from atoms and molecules and how they interact.
- 2. Is the movement of energy through a substance – like air or water – and is caused by vibrations. Solids, liquids and gases transmit sound as waves.
- 3. Huge amounts of energy can be generated by splitting atoms.
- 4. Large objects such as the Earth and the Sun create gravity and _____.
- 5. It is a source that is limited
- 6. Anything that is moving has energy.
- 8. Is also called thermal energy. It comes from molecules of different temperatures interacting.
- 11. Is called radiant energy. The Earth gets a lot of its energy from the sun
- 12. Is energy that is stored.
- 13. Is light, heat, and other forms of energy given off by the Sun. Can be collected and used to heat buildings and to make electricity
- 16. The potential energy of a magnetic field.
- 19. Is stored when materials stretch or compress.