Physics - 2nd Quarter

2. reaction pair A pair of objects that interact to produce a force on each other of equal magnitude but of opposite direction
4. A set of connected things or parts forming a complex whole
5. Strength or energy as an attribute of physical action or movement
6. To hold (a property) constant during an interaction or process
9. A driving or motivating force
12. A quantity having direction as well as magnitude, especially as determining the position of one point in space relative to another
14. collision A collision process whereby part of the total kinetic energy of the system is converted into a different form of energy, such as radiant energy
15. A body's relative mass or the quantity of matter contained by it
16. Increase in the rate or speed of something
18. A property of matter by which it retains its state of rest or its velocity along a straight line so long as it is not acted upon by an external force
21. of vector Length of the vector
22. The speed of something in a given direction
23. A coherent, typically large body of matter with no definite shape

1. collision A collision in which the total kinetic energy of the colliding bodies or particles is the same after the collision as it was before
3. fall The ideal falling motion of something subject only to a gravitational field
4. The rate at which someone or something is able to move or operate
7. notation A way of writing very large or very small numbers by multiplying power of 10 and a number between 1 and 10
8. force Overall force acting on an object
10. field strength A field of force surrounding a body of finite mass
11. The resistance that one surface or object encounters when moving over another
13. Of a quantity having only magnitude, not direction
17. A state in which opposing forces or influences are balanced
19. force Force exerted upon an object that is in touch with another stable object
20. The quantity of motion of a moving body, measured as a product of its mass and velocity