Across
- 2. Rate at which work is done
- 4. Plant material, manure, organic matter that can be burned for energy
- 8. The sum of the kinetic and potential energy acting on a system
- 10. Mining that takes place underground
- 11. How many types of simple machines are there
- 15. Unit for work and energy
- 17. Energy that comes from heat in the Earth's interior
- 18. Three main nonrenewable resources; include coal, petroleum, and natural gas
- 20. Simple machine that includes an inclined plane wrapped around a cylinder
- 23. A resource that forms at a rate that is much slower than the rate at which it is consumed
- 24. Energy of a moving object due to its motion
Down
- 1. ___ potential energy depends on the mass and the height
- 3. The ability to do work
- 5. Help do work by redistributing the work we put into them
- 6. Type of nonrenewable energy that involves splitting a nucleus to harness energy released
- 7. Ratio between output force and input force
- 9. Element from periodic table that is used in nuclear energy
- 12. A ramp is an example of which type of simple machine
- 13. Unit for power
- 14. Mineral deposits from which metals and nonmetals can be removed profitably
- 16. All levers have an arm and a ___
- 19. Energy from the sun
- 21. A quantity that measures the effects of a force acting over a distance. Calculated by force x distance
- 22. The most abundant fossil fuel