Gravity and Friction Vocabulary

a push or pull on one object by another that is touching it

• contact force

• force

• noncontact force

• mass

a push or pull on an object

• force

• contact force

• noncontact force

• attraction

a force that resists the motion of two surfaces that are touching

• friction

• gravity

• contact force

• shearing force

attractive force that exists between all objects that have mass

• force

• friction

• gravity

• contact force

a force one object can apply to another object without touching it

• friction

• gravity

• contact force

• noncontact force

important; momentous

• significant

• static

• force

• weight

at rest or having no motion

• significant

• static

• force

• weight

gravitational force exerted on an object

• significant

• static

• mass

• weight