7th-8th Grade 9 Weeks Test

An object's _____ is the difference between an object's final position and its starting position.

• motion

• distance

• displacement

• acceleration

Newton's First Law of Motion is also known as the law of _____.

• acceleration

• inertia

• action-reaction

• both a and c

_____ is the process of changing position.

• displacement

• speed

• motion

• acceleration

_____ is the total length of your path.

• motion

• displacement

• distance

• velocity

_____ is the distance an object moves divided by the time it took to move that distance.

• velocity

• acceleration

• speed

• displacement

_____ is the SPEED and DIRECTION of an object's motion.

• acceleration

• velocity

• displacement

• momentum

_____ is the measure of the change in velocity during a period of time.

• speed

• displacement

• acceleration

• speed

A _____ is a push or a pull.

• force

• weight

• mass

• magnet

Identify 3 non-contact forces.

• gravity, friction, magnetism

• friction, electricity, gravity

• gravity, magnetism, electricity

• friction, gravity, sliding friction

_____ is a contact force that resists the sliding motion between two objects that are touching.

• gravity

• magnetism

• friction

• electricity