### Motion and Forces

C2

 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

Across
3.the number of times a simple machine will multiply its force
4.a combination of two or more simple machines
6.friction that acts on objects that are not moving
8.a place or object used for comparison to determine if an object is in motion
12.an increase in velocity
13.the force of gravity on an object at the surface of a planet
14.the standard unit used to measure work
15.the amount of matter in an object
16.the rate at which work is done
18.forces that are not being balanced by a force of equal strength and in the opposite direction
19.the resistance of a stationary object of being moved and the resistance of a moving object to changing direction and speed
Down
1.the greatest velocity a falling object can achieve
2.the rule that in the absence of outside forces the total momentum of objects that interact do not change
5.the resistance that opposes the falling motion of objects
7.the application of energy that causes something to move
9.the product of an object's mass and velocity
10.an object that is thrown
11.the speed that an object travels in a given distance
15.any change in the position or location of an object
17.force of attraction that acts between all objects

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