# 7th Grade - Science - Motion

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1. Measures the distance and direction from the starting point.
Displacement
2. Distance divided by time
Speed
3. A push or pull that causes an object to accelerate
Force
4. When a system becomes stable or balanced
equilibrium
5. The force that opposes motion between two surfaces that are in contact with each other.
Friction
6. The change in position of an object
Motion
7. Forces that are equal but opposite in direction; when they act on an object, they cancel each other out and not change occurs in the object's motion.
Balances forces
8. Describes unequal forces acting on an object; results in a change in the object's motion in the direction of the larger force.
Unbalanced forces
9. Speed and direction of a moving object
velocity
10. Amount of matter in something; measured in grams
Mass
11. Change in velocity over time; always produced by a force.
Acceleration
12. An object's tendency to resist change in motion
Inertia
13. A measure of the force of gravity on an object; Weight = mass x acceleration to gravity.
Weight
14. Force of attraction between any two objects.
Gravity
 Author: Bookworm48 ID: 302113 Card Set: 7th Grade - Science - Motion Updated: 2015-05-04 21:23:42 Tags: Motion Vocab Folders: Description: Motion Vocab Words Show Answers: