Science 7 (20-item Reviewer)

Forces have both ________ and direction.

• Magnitude

• Speed

• Gravity

• Height

A force is a _____

• push

• pull

• Both push and pull

• Object

When you rub your hand heat energy is generated because of _____

• Magnetism

• Muscular force

• Electrostatic force

• Friction

What force ultimately slows the roller coaster to a stop?

• Applied

• Normal

• Friction

• Gravitational

What force holds the planets in motion around the sun?

• Magnetic
• Electrical
• Gravitational
• Air Resistance

Name the missing force....

• weight force
• normal force
• frictional force
• tension force

A push/pull exerted on an object is called

• Force

• Momentum

• Speed

• Net force

Are the forces balanced or unbalanced?

• Balanced

• Unbalanced

Rubbing a balloon on your head causes charge to build up on the balloon The balloon can then "stick" to the wall - what force is acting here?

• Gravity

• Electrostatic

• Friction

• Applied

What is the name of the force responsible for keeping a book on the desk?

• Gravity

• Air Resistance

• Normal Force

• Friction