Physics

3. A force that draws any two objects toward one another
6. a rate at which something happens
7. a body remains at rest or in motion with a constant velocity unless acted upon by an external force
11. A force caused by a rubbing motion between two objects
13. the property created by the space between two objects
15. a quantity that has magnitude and direction
17. the rate of change of momentum is proportional to the imposed force and goes in the direction of the force
18. the continuum of experience in which events pass to the past
19. A twisting force
20. A combination of speed and the direction in which an object travels

1. The speed needed at the top of a loop for a car to make it through the loop without falling off the track
2. How quickly an object speeds up, slows down or changes direction. Is equal to change in velocity divided by time
4. How fast an object moves. Is equal to the distance that object travels divided by the time it takes
5. action and reaction are equal and opposite
8. The energy stored by an object ready to be used
9. The energy of an object in motion, which is directly related to its velocity and its mass. Mechanical Energy= Kinetic = Potential Energy
10. any push or pull
12. tendency of something to stay or rest or in motion
14. Also known as a gravitational force. Is equal to the force exerted on an object by the Earth's gravity at sea level
16. the product of a body's mass and its velocity