Physics

4. The magnitude of the velocity.
6. A constant that depends on the surfaces in contact.
11. The manipulated variable.
13. Force that opposes the start of motion.
14. Change in position.
15. The separation between two points.
16. The force that opposes the motion between two surfaces that are in contact.
17. Quantity having both magnitude and direction.
18. Gravitational force exerted by a large body, usually Earth.

1. An object with no force acting on it moves with constant velocity.
2. Ratio of change in position to time interval over which change takes place.
3. Study of matter and energy and their relationships.
5. Forces that give materials their strength.
7. The acceleration of a body is directly proportional to the net force on it and inversely proportional to its mass.
8. Quantity,like distance,that has only a magnitude, or size.
9. Change in velocity divided by time interval over which it occurred.
10. When one object exerts a force on a second object, the second exerts a force on the first that is equal in magnitude but opposite in direction.
12. Responding variable.