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Section 2
| Term | Definition |
|---|---|
| Force | |
| Newtons | |
| Net Force | |
| Unbalanced Forces | |
| Balanced force | |
| Friction | |
| Static Friction- Friction that acts on objects that are not moving | Friction that acts on objects that are not moving |
| Sliding Friction- Friction that occurs when one solid surface slides | 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 towards each other |
| Mass- | A measure of how much matter is in an object |
| Weight | - A measure of the force of gravity on a 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 object 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 |