Newton's Laws and Friction
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14 terms
Terms | Definitions |
|---|---|
 Gravity | The force that pulls two objects together (Usually Earth and another object). |
| Mass | The amount of matter in an object. |
| Weight | How much gravitational pull there is on an object. |
| Unbalanced Forces | Causes and objects motion (movement) to change. |
| Centripital Force | The force that causes an object to move in a circle. |
| Friction | The force that opposes motion. It works in the opposite direction. Ther are four types; sliding, rolling, fluid, and static |
| Sliding Friction | Happens when two surfaces slide over each other. |
| Rolling Friction | Happens when two objects roll over each other. |
| Fluid Friction | Happens when a solid passes through a liquid or gas. |
| Static Friction | Happens when objects aren't moving. |
| Newton's 1st Law | An object at rest tends to stay at rest, and an object in motion tends to stay in motion unless acted upon by an outside force. |
| Newton's 2nd Law | States that a heavier object requires more accelatation and force than a lighter one. |
| Newton's 3rd Law | For every action, there is an equal and opposite reaction. |
| Speed | How fast you are moving. It is different from velocity. To find this, you divide the distance by the time you traveled it in. |
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