Vocabulary

1. and axle - a simple machine that consists of two rigidly attached disks or cylinders, each one with a different radius
3. - a V-shaped object whose sides are two inclined planes sloped toward each other
4. - the product of distance and the force in the direction an object moves
7. - a device that changes a force & helps you do work
8. energy - the energy an object has due to its motion
11. energy - the energy stored in atomic nuclei
12. potential energy - the potential energy of an object that is stretched or compressed
15. energy - energy dealing with temperature
18. - an inclined plane wrapped around a cylinder
19. energy - the energy associated with electric charges
20. - a rigid bar that is free to move around a fixed point

2. energy - energy that travels in waves
5. potential energy - potential energy that depends upon an object’s height above a reference point
6. - the rate of doing work
9. plane - a slanted surface along which a force moves an object to a different elevation
10. energy - energy that is stored as a result of position or shape
13. energy - the energy stored in chemical bonds
14. - a simple machine that consists of a rope that fits into a groove in a wheel
16. - the ability to do work
17. energy - the energy associated with the motion and position of everyday objects