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Forces and Motion #1
| Question | Answer |
|---|---|
| a change in velocity over time | acceleration |
| the tendency of a moving object to keep moving in a straight line or of any object to resist a change in motion | inertia |
| the mass of an object multiplied by its velocity. (The more the mass, the more difficult it is to stop.) | momentum |
| the location of an object | position |
| a group of objects from which a position or a motion is measured | frame of reference |
| how fast an object's position changes with time at any given moment | speed |
| the speed and direction of a moving object | velocity |
| the force that pulls objects together | gravity |
| forces that act together on an object without changing its motion | balanced force |
| forces that do not cancel each other out that cause an object to change its motion | unbalanced force |
| a force caused by two objects rubbing against each other | friction |
| any push or pull by one object on another | force |
| a measure of the amount of matter in an object | mass |
| Things at rest stay at rest, and things in motion stay in motion unless acted on by an outside force. | Newton's 1st Law of Motion |
| To move a mass, you need a force. | Newton's 2nd Law of Motion |
| For every action, there is an equal but opposite reaction. | Newton's 3rd Law of Motion |
Created by:
mrswhitley
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