Motion & Forces Vocabulary

Match the words to the correct definition.

a force of attraction between objects due to their masses

gravity

a change in speed (velocity) or direction

acceleration

a force that opposes motion between two objects that are in contact

friction

the tendency of an object to resistance a change in motion

inertia

a push or a pull(includes size and direction)

force

the result of a force moving an object

(force and motion are same directio)

work

a measure of the amount of matter in an object

mass

the rate of motion (distance ÷ time)

speed

combination of all the forces acting on an object

net force

the speed of an object in a particular direction

velocity

an object’s change in position

motion

the pull of gravity on an object

weight

the unit for force

newton