| A | B |
|---|
| Acceleration | The rate of change in velocity |
| Average Speed | A rate of motion determined by diving the total distance traveled by the total traveled time |
| Balanced Forces | Forces that are equal in siza and opposite in direction |
| Constant Speed | Speed that does not change |
| Force | A push of a pull one body exerts on another |
| Friction | The force the opposes motion between two surfaces that are touching |
| Gravity | Force exerted by every object in the universe on every other object |
| Inertia | The tendency of an object to resist any change in its motion |
| Instantenous Speed | The rate of motion at a given instant in time, such as that given on a car's speedometer |
| Net Force | The sum of the forces on an object when unbalanced forces are applied to it |
| Speed | The rate of motion, or the rate at which a body changes position |
| Velocity | The speed and direction of a moving body |
| Weight | The measure of the force of gravity on an object |
| Air Resistance | Frcitional force air exerts on a moving object |
| Artificial Satellite | Human-made devices that orbit Earth |
| Centripetal Acceleration | Acceleration toward the center of a circle by an object moving along a circular path |
| Centripetal Force | The force that causes an object moving along a circular path to move toward the center of the path |
| Law of conservation of momentum | A law stating that the total momentum of a group of objects is conserved unless a net force acts on the objects |
| Momentum | A property of any moving object. Symbol is "p". |
| Newtons Second Law of Motion | Describes the acceleration of an object in the direction of the net force applied to it. F = m * a |
| Newtons Third Law of Motion | Describes action-reation pairs. For every action force, there is an equal and opposite reation force |
| Projectile | Any object shot or thrown through the air. Travel in a curved path |
| Terminal Velocity | The greatest velocity reached by a falling object |
| Newtons First Law of Motion | Objects at rest will stay at rest unless acted upon by an net force |
