| A | B |
|---|
| speed | measure of the distance an object moves in a given amount of time |
| velocity | measure of an objects speed and directiin |
| acceleration | change in an object velocity over time |
| newton | metric unit used to measure force |
| work | result of a force applied to an object causing it to move |
| energy | ability to do work |
| joule | a metric unit used to measure work, equal to one newton meter (Nm) |
| simple machine | device that makes work easier and which has few or no moving parts |
| lever | beam or bar that pivots on a fixed point |
| inclined plane | straight, slanted surface used to raise an object |
| fulcrum | point where lever rotates or pivots |
| effort | force that is applied to a simple machine |
| load | force a simple machine moves when effort id applied |
| grade | a measure of the steepness of a slope |
