| A | B |
|---|
| Force | A push or pull exerted on an object |
| Net Force | The overall force in an object when all the individual forces acting on an object are added together |
| Unbalanced Force | A nonzero Net Force which changes an objects motion |
| Balanced Forces | Equal forces acting on an object in opposite directions |
| Inertia | The tendancy of an object to resist any change in its motion |
| Mass | The amount of matter in an object |
| Friction | The force that one surface exerts on another when the two rub against each other |
| Gravity | The force that pulls objects to the earth |
| Projectile | An object that is thrown |
| Air Resistance | The fluid friction experienced bye objects moving through the air |
| Terminal Velocity | The maximum velocity a falling object can achieve |
| Weight | The force of gravity on an object at the surface of the object |
| Momentum | The product of an objects mass and velocity |
| Satellite | An object that travels around another object in space |
| Centripetal Force | A force that causes an object to move in a circle |
| Newtons First Law | Inertia: an object will stay at rest, and an object in motion will stay in motion unless acted upon by an unbalanced force |
| Newton Second Law | TThe force of an object is equal to the product of its accelleration and its mass: Force=massXaccelleration |
