Newtons Laws
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22 terms
Terms | Definitions |
|---|---|
 Newtons 1st Law | an object at rest tends to stay at rest. an object in motion tends to stay in motion in a straight line at a constant speed until another force acts on the object |
| Inertia | the tendency for an object to resist a chance in motion |
| AKA newtons 1st law | law of inertia (AKA___) |
| Speed | the distance an object travels per unit of time |
| Speed formula | distance/time=_____ (((m/s mph))) |
| Velocity | speed in a given direction EX: 50mph North |
| Acceleration | a change in velocity... the rate at which velocity changes.... increasing speed, decreasing speed, or changing direction |
| Acceleration formula | Final speed- Initial speed/time=______________ |
| Deceleration | slowing down |
| Mass | the amount of matter in an object |
| force | a push or a pull on an object |
| the two things that effect acceleration | mass and force |
| Increased force= | greater acceleration |
| Increased mass= | lower acceleration |
| Newtons Second law | How fast an object picks up speed (accelerates) or slows down (decelerates) depends on the amount of force used and on its mass |
| Newtons Second law mathematically | F=MA.... Force=Mass * acceleration.... acceleration=force/mass |
| Newtons Third Law | for every action there is an equal and opposite reaction |
| Average speed formula | total distance/total time=_________ |
| Static Friction | friction that acts on objects at rest |
| Sliding friction | occurs when objects slide over one another |
| Rolling Friction | occurs when objects roll over one another |
| Fluid Friction | occurs as an object moves through a fluid... air resistance |
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