Across
- 6. - rich deposits of hydrocarbon mixtures that formed from the remains of organisms
- 9. - a device that changes a force & helps you do work
- 11. - the process of changing energy from one form to another
- 13. - energy obtained from flowing water
- 15. - the rate of doing work
- 17. - the energy stored in chemical bonds
- 19. - the practice of finding ways to use less energy or to use energy more efficiently
- 20. - the energy associated with electric charges
- 21. - a source of energy that exists in limited quantities and, once used, cannot be replaced except over the course of millions of years
- 24. - a V-shaped object whose sides are two inclined planes sloped toward each other
- 25. - energy dealing with temperature
- 26. - a source of energy that can be replaced in a relatively short period of time
- 29. - sunlight that is converted into usable energy
Down
- 1. - the energy associated with the motion and position of everyday objects
- 2. - energy that travels in waves
- 3. - the chemical energy stored in living things
- 4. - potential energy that depends upon an
- 5. - the energy stored in atomic nuclei
- 7. - a slanted surface along which a force moves an object to a different elevation
- 8. - the potential energy of an object that is stretched or compressed
- 10. - a rigid bar that is free to move around a fixed point
- 12. - thermal energy beneath Earth's surface
- 14. - a simple machine that consists of a rope that fits into a groove in a wheel
- 16. - energy that is stored as a result of position or shape
- 18. - the energy an object has due to its motion
- 22. - an inclined plane wrapped around a cylinder
- 23. - a simple machine that consists of two rigidly attached disks or cylinders, each one with a different radius
- 27. - the ability to do work
- 28. - the product of distance and the force in the direction an object moves