Physics Basics

Front

gravity

Back

the invisible force of attraction between all masses in the universe (pull)

Front

law

Back

statement about how things work in nature that seems to be true

Front

unbalanced force

Back

an object to start moving, stop moving, or change direction

Front

1st law of motion

Back

an object at rest stays at rest and an object in motion stays in motion unless acted on by an unbalanced force

Front

friction

Back

the resistance caused when one object is moved in contact with another

Front

inertia

Back

The tendency of an object to resist a change in motion

Front

motion

Back

a change of position of an object

Front

velocity

Back

the measure of the speed and the direction of an object

Front

speed

Back

the measure of an object's distance during a unit of time

Front

force

Back

push or pull of any kind