Science Chapter 10 Test
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Created by:
classof2012letsdothis on November 15, 2011
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23 terms
Terms | Definitions |
|---|---|
 Force | a push or a pull exerted on an object |
| Newton | The SI unit used for the magnitude or strength of a force |
| Net Force | The overall force on an object when all the individual forces acting on it are added together |
| Unbalanced Forces | Forces that cause an object's velocity to change |
| Balanced Forces | Equal forces acting on an object's velocity to change |
| Friction | The force that one surface exerts on another when the two surfaces rub against each other |
| Static Friction | Friction that acts on objects that are not moving |
| Sliding Friction | Friction that occurs when one solid surface slides over another |
| Rolling Friction | Friction that occurs when an object rolls over a surface |
| Fluid Friction | Friction that occurs as an object moves through a fluid |
| Gravity | The force that pulls objects toward each other |
| Mass | A measure of how much matter is in an object |
| Weight | A measure of the force of the gravity on an object |
| Free Fall | The motion of a falling object when the only force acting on it is gravity |
| Air Resistance | The fluid friction experienced by objects falling through the air |
| Projectile | An object that is thrown |
| Compression | An elastic force that squeezes or pushes the molecules in matter together |
| Tension | An elastic force that stretches or pulls on the molecules in matter |
| Inertia | The tendency of an object to resist any change in it's motion |
| Momentum | The product of an object's mass and velocity |
| Law of Conservation of Energy | The rule that energy cannot be created or destroyed, it can only be transfered and transformed. |
| Satellite | Any object that orbits around another object in space |
| Centripetal Force | A force that causes an object to move in a circle |
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