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Chapter 10 Forces
| Term | Definition |
|---|---|
| Net Force | The overall force on an object when all the individual forces acting on it are added together. |
| Law of conservation of Momentum | The rule that in the absence of outside forces the total momentum of objects that interact does not change |
| Tension | An elastic force that stretches or pulls on the molecules in matter |
| Sliding Friction | Friction that occurs when one solid surfaces slides over another |
| Unbalanced Forces | Forces that cause an object's velocity to change |
| Air resistance | The fluid friction experienced by objects falling through the air |
| Gravity | The force that pulls objects toward each other |
| Centripetal force | A force that causes an object to move in a circle |
| Rolling Friction | Friction that occurs when an object rolls over a surface |
| Newtons | The SI unit used for the magnitude, or strength, of a force |
| weight | A measure of the force of gravity on an object |
| Static Friction | Friction that acts on objects that are not moving |
| Compression | An elastic force that squeezes or pushes the molecules in matter together |
| Inertia | The tendency of an object to resist any change in its motion |
| Mass | A measure of how much matter is in object |
| Momentum | The product of an object's mass and velocity |
| Free Fall | The motion of a falling object when the only force acting on it is gravity |
| Friction | The force that one surface exerts on another when the two surfaces rub against each other |
| Projectile | An object that is thrown |
| Fluid Friction | Friction that occurs as an object moves through a fluid |
| Force | A push or pull exerted on an object |
| Balanced Forces | Equal forces acting on an object in opposite directions |
| Satelite | Any object that orbits around another object |