Forces

What force holds the planets in motion around the sun?

• Magnetic
• Electrical
• Gravitational
• Air Resistance

All objects in the universe have a gravitational attraction to each other. 

• True
• False

What force ultimately slows the roller coaster to a stop?

• Applied
• Normal
• Friction
• Magnetic

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

The unit of force is

• m/s
• m/s^2
• newton
• kg

Jonny and Patty are pushing against a basketball. Both of them push against theball on opposite sides with a force of 20 N to keep the ball still. What is the net force?

• 400 N
• 24 N
• 0 N
• 40 N

What is the net force in this picture?

• 50 Newtons to the right
• 950 Newtons to the right
• 950 Newtons to the left
• 50 Newtons to the left

Give and example of a force

• Gravity

• weather

• sleeping

• swimming

What happens to an object if equal forces are pushing from opposite directions?

• Does not move

• Pushed up

• Pushed down

• Explodes