Physics

2. Gravitational force exerted by a large body, usually Earth.
4. Change in velocity divided by time interval over which it occurred.
6. Forces that give materials their strength.
10. The manipulated variable.
13. The force that opposes the motion between two surfaces that are in contact.
15. Study of matter and energy and their relationships.
17. Change in position.

1. Responding variable.
3. The magnitude of the velocity.
5. A constant that depends on the surfaces in contact.
7. An object with no force acting on it moves with constant velocity.
8. The separation between two points.
9. Ratio of change in position to time interval over which change takes place.
11. The acceleration of a body is directly proportional to the net force on it and inversely proportional to its mass.
12. 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.
14. Friction Force that opposes the start of motion.
16. Quantity having both magnitude and direction.
18. Quantity,like distance,that has only a magnitude, or size.