Types of Forces

This force makes things fall to the ground.

• Applied force

• Gravity

• Normal Force

• Friction

Are forces applied when the objects involved are in direct contact.

• Contact forces

• Normal forces

• action-at-a-distance forces

Generated between two bodies in contact with each other by resistance to rubbing between them.

• Push or pull

• Tension

• Elasticity

• 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

Friction is a force that acts in an ___________ direction of movement.

• similar
• opposite
• parallel
• west

A type of friction that occurs when air pushes against a moving object causing it to decelerate.

• surface area
• air resistance
• velocity
• gravity 

Name the missing force...

• applied force
• weight force
• tension force
• drag

The support force exerted upon an object that is in contact with another stable object.

• Gravity

• Electrical Force

• Normal Force