Science Vocab

1. The difference between the initial, or starting, position and the final position.
6. A measure of the change in velocity during a period of time.
7. force- A push or a pull on one object by another object that is touching it.
8. The speed and direction of a moving object.
10. third law of motion- When an object applies a force on another object, the second object applies a force of the same strength on the first object but the force is in the opposite direction.
12. An attractive force that exists between all objects that have mass.
13. A push or a pull on an object.
14. force- The combination of all the forces acting on an object.
15. first law of motion- An object at rest will stay at rest, and an object at motion will stay in motion unless a force acts upon the object.

2. A measure of the distance an object travels in a given amount of time.
3. force- A force one object applies to another object without touching it.
4. The gravitational force exerted on an object.
5. A contact force that resists the sliding motion of two surfaces that are touching.
9. Pair- The force two objects apply to each other.
11. second law of motion- Law that states that the acceleration of an object is equal to the net force exerted on the object divided by the object’s mass.