AS Physics

6. energy stored in an extended or compressed material
8. the force on an object cause by the gravitational field acting on it's mass
11. has both magnitude and direction
12. using a drawing often to scale to find the resultant vector
13. force x perpendicualar distance from the pivot point to line of action of the force
14. the net force acting on an object
17. the force that will give a 1kg mass and acceleration of one metre per second
18. the total distance travelled by an object divided by the time taken
19. the ratio of stress to strain for a given materia,l resulting from tensile forces, provided Hooke's law is obeyed

1. the distance moved by an object in a particular direction, measured from a fixed start point
2. the ratio of useful output energy to the total input energy of a device
3. energy of an object due to its motion
4. the point where rge ebtire weight of an object appears to act
5. the rate of change of the displacement of an object
7. and object in equilibrium is either at rest or travelling with a constant velocity because the net force on it is zero
8. the product of the force and the distance moved by the force in the direction of travel
9. the product of one of teh forces of a couple and the perpendicular distance between them
10. has magnitude but no direction
15. the rate of change of an object's velocity
16. the rate of change of the distance moved by an object