The Laws of Motion (Gravity/Friction, Newton's (1st and 2nd)

A push or pull on an object

• force

• mass

• weight

• friction

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

• contact force

• noncontact force

A force that one object can apply to another object without touching

• contact force

• noncontact force

Which is a contact force?

• bat hitting a baseball

• magnetism

• gravity

• electric force

Which is a noncontact force?

• magnetism

• musician pushing on piano keys

• kicking a soccer ball

• pushing a dresser across a room

An attractive force that exists between all objects that have mass

• mass

• gravity

• force

• acceleration

The amount of matter (stuff) in an object

• mass

• weight

• friction

• force

The gravitational force exerted on an object

• mass

• weight

• friction

• speed

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

• friction

• mass

• force

• weight

The combination of all the forces acting on an object is called

• net force

• the force

• motion

• gravity