Forces Vocabulary

A push or pull on something

• force

• motion

• mass

• momentum

the combination of all the forces acting on an object

• push or pull

• net force

• balanced force

• unbalanced force

When the forces acting on an object are equal and opposite (net force = zero)

• motion

• unbalanced forces

• balanced forces

• momentum

When the forces acting on an object are not equal and opposite (net force is a non zero value)

• motion

• balanced forces

• unbalanced forces

• momentum

The forces that two objects that are touching exert on each other

• mass

• weight

• gravity

• friction

The force that all objects with mass exert on each other

• gravity

• momentum

• velocity

• projectile

a measure of the amount of matter in an object

• weight

• gravity

• friction

• mass

measure of the force of gravity on an object

• mass

• momentum

• balanced force

• weight

the tendency of objects to resist changes in motion

• weight

• gravity

• force

• inertia

a property of matter that depends on its mass and velocity

• force

• momentum

• friction

• gravity