Forces

1. A push, pull, or twist.
4. When the sum of the forces on an individual object add up to zero.
7. The tendency of an object to resist a change in motion
11. The change in motion due to the object’s changing speed or direction.
12. A “downward” force exerted on everything that has mass by the earth.
13. A force that two surfaces exert on each other when rub against each other (slows objects down to a stop)

2. An event in which two (or more) bodies exert forces on each other for a period of time.
3. The force of attraction or repulsion of magnetic material
5. A quantity that has a magnitude and a direction; shown by an arrow representing a force in one direction - must be labeled.
6. The rate at which an object changes position s=d/t.
8. The amount of matter in an object.
9. The speed of an object in a particular direction
10. Amount of something; how large or small something is, represented by the length of the vector arrow.