rate of motion.

rapidity in moving.

the speed of light

the act of rotating.

turning on an axis.

the earth rotates around the sun.

stength or powere exerted on an object.

i used force to push open the door.

increase of speed or velocity.

a change in velocity.

the car accelerated.

a surface resisting an objects motion.

when i slid a book across the table the friction slowed it down.

when the force is stonger one way than the other.

there was an unbalanced force in the direction of motion.

body of matter.

the quantity of heaaviness.

the mass of dough.

i weigh 105 pounds.

motion.

action.

available power.

capacity for activty.

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