Across
- 1. a liquid fossil fuel used for energy which was formed through heat and pressure, from the remains of ancient plants and animals
- 7. the wise use of natural resources wisely in order to protect them
- 8. the ability to do work or cause change; can be changed into different forms and can move between objects
- 12. KE=1/2 mv^2
- 13. Wind turbines convert the kinetic energy in the wind into mechanical power (Inexhaustible)
- 14. something that cannot be used up, or has limitless energy
- 15. getting energy by burning wood, and other organic matter ( renewable)
- 16. a fossil fuel used for energy which was formed, through heat and pressure, from the remains of ancient plants and animals
- 17. Flowing water creates energy that can be captured and turned into electricity (inexhaustible)
- 18. PE=mgh
Down
- 2. may change form but can't be created or destroyed under conditions
- 3. radiant energy emitted by the sun (Inexhaustible)
- 4. heat energy generated and stored in the Earth (Inexhaustible)
- 5. a hard, black substance extracted from the ground and burned to obtain energy, a non-renewable fossil fuel
- 6. come from the decay of organisms buried in sediments that are pressed tightly together for millions of years, at very high temperatures
- 9. the energy released during nuclear fission or fusion, especially when used to generate electricity
- 10. a material found in nature that is useful to humans
- 11. total amount of kinetic energy & potential energy in a system