1. Force: A push or a pull
2. Motion: An object's change in position over time when compared with a reference point
3. Work: The action that results when a force causes an object to move in the direction of the force. (work= force/distance)
4. Power: The rate at which work is done (power= work/time)
5. Joule: The unit used to express work and energy (newton x meter)
6. Newton: The unit used to express force
7. Watt: The unit used to express power (joules/second)
8. Reference Point: An object that appears to stay in place in relation to an object in motion
9. Acceleration: The rate at which velocity changes
10. Velocity: The speed of an object in a particular direction
11. Speed: The rate at which an object moves
12. Gravity: A force of attraction between objects that is due to their masses
13. Inertia: The tendency of all objects to resist any change in motion
14. Momentum: A property of a moving object that depends on the object's mass and velocity
15. Newton's First Law of Motion: An object at rest remains at rest and an object in motion remains in motion at constant speed and in a straight line unless acted on by an unbalanced force
16. Newton's Second Law of Motion: The acceleration of an object depends on the mass of the object and the amount of force applied
17. Newton's Third Law of Motion: Whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first
