8th grade chapter 2

Front

tendency of an object to resist a change in motion

Back

inertia

Front

a push or pull

Back

force

Front

amount of matter in an object

Back

mass

Front

measures how hard it is to stop a moving object

Back

momentum

Front

forces that 2 objects apply on each other

Back

force pair

Front

What acts perpendicular to the direction of motion when an object moves in a circle? Options: momentum, centripetal force, elastic collision, newton

Back

centripetal force

Front

What will happen to an object at rest if the net force acting on it is zero? Options: speed up, slow down, stay at rest, change direction

Back

stay at rest

Front

An astronauts ____ changes when they go to space

Back

weight

Front

Which example describes a contact force? Options: baseball being hit by bat, basketball falling to ground, metal pin being pulled by a magnet, electric field causing person's hair to stand on end

Back

baseball being hit by bat

Front

What is the net force of 150--> and <-- 275?

Back

<-- 125 N