| Term | Definition |
|---|---|
| Motion | A change in position compared to the starting location, which happens over time |
| Force | A push or pull on an object that can move, stop, or change its direction |
| Friction | The force or resistance caused when two things rub together |
| Unbalanced Force | Forces that are unequal and cause motion |
| Balanced Force | Forces that are equal and result in no motion |
| Contact Force | Forces between 2 objects that are touching |
| Non-contact Force | Any force on an object by another object that is not touching it |
| Weight | The pull of gravity on an object |
| Mass | The amount of matter in an object |
| Energy | The ability to cause change in matter |
| Potential Energy | Energy available because of an object’s position |
| Kinetic Energy | Energy an object has because of its movement |
| Newton's 1st Law | An object at rest tends to stay at rest and an object in motion tends to stay in motion unless acted on by an outside force |
| Newton's 2nd Law | An object’s acceleration depends on the size, direction of the force, and mass of the object |
| Newton's 3rd Law | For every action, there is an equal and opposite reaction |
| Inertia | The tendency for an object to resist change and do what it is already doing |
| Momentum | A measure of how hard it is to slow down or stop an object |
| Gravity | The force that pulls objects towards the center of the earth |
| Speed | A measurement of an object’s motion during a given time |
| Equilibrium | Equal balance of forces acting on an object |
| Slope | Slant or incline |
| Drag | the force that makes objects slow down or prevents it from moving |
| Lift | the force that lifts an object from the ground |
| Thrust | the force that propels or pushes an object forward |
| Air Resistance | friction between an object trying to move in the air |
| Aerodynamics | the type of dynamics dealing with air and the way it interacts with moving objects |
| Distance | The measurement of the motion of an object |
| Acceleration | A change in speed and or velocity |
| Velocity | Speed with direction |
| Deceleration | Decrease in speed and or velocity |
