| A | B |
|---|
| potential energy | stored energy in a object |
| gravitational potential energy | an objects potential energy above the ground |
| kinetic energy | a moving objects energy |
| work | applying a force to an object to move it a distance |
| simple machines | machines that make you rlife simpler. Have few or no moving parts |
| effort force | a force applied to a simple machine |
| resistance force | the force a machine acts against |
| levers | a simple machine that has a rigid bar resting on a pivot point |
| fulcrum | pivot point |
| mechanical advantage | a numer that tells how much a machine should multiply our effort |
| pulley | a simple machine with a wheel and rope |
| wheel and axle | a simple machine that has a wheel and axle |
| inclined plane | a simple machine with a straight slanted surface |
| screw | a simple machine that multiplies effort |
| wedge | a simple machine that has two inclined planes |
| compound machine | a combination of two or more simple machine |
| efficiency | to measure the amount of useful work a machine can do with a quality |
