Science 8 Semester Review

What force holds the planets in motion around the sun?

• Magnetic

• Electrical

• Gravitational

• Air Resistance

What does the strength of gravity between two objects depend upon?

• Mass & distance

• Mass & weight

• Gravity & inertia

• Inertia & mass

What force ultimately slows the roller coaster to a stop?

• Applied

• Normal

• Friction

• Magnetic

An _______ force must act on an object for it to CHANGE it's motion

• balanced

• unbalanced

• gravitational

• electrical

What is defined as a push or pull?

• force

• motion

• vector

• speed

This type of force resist motion between two surfaces that are pressed together

• contact

• gravity

• friction

A contact force is from

• objects physically touching

• far apart objects

• not touching object

• always a pull

A non-contact force is between

• two objects that aren't touching

• two objects that are touching

• the ground and wheels

• you and me

The force between the phone and the mount is a

• contact force

• non-contact force

Friction is a

• Contact Force

• Myth

• Non-contact Force