Force & Motion

On which surface will a toy car travel the furthest?

• Carpet
• Polished Wood
• Ice

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

• similar
• opposite
• parallel
• west

Why is it harder for the boy in Image B to get down the hill?

• Motion
• Friction
• Work
• Displacement

What is one way to reduce friction?

• Put sandpaper between the surfaces that touch.
• Push the surfaces closer together.
• Shine a light on the surfaces.
• Put a slippery substance between the surfaces.

Which has the least friction?

• snowboard on a snowy hill
• running on the playground
• sandpaper on wood
• a racer on a track

Which of the following shows the direction of the friction force?

• A
• B
• C
• D

Which of these would increase the speed of a skateboard on a half pipe?

• Make it less steep.
• Put a back pack on the rider. 
• Make the ramp as slick as possible. 
• Begin skateboarding from the middle of the ramp. 

If these boys are pulling with the same amount of force.  What will happen?

• The boy in blue will win.
• They will not move at all.
• The boy in red will win.
• Both will fall down.

If you pull the cord, what direction will the box move?

• Up
• Down
• Left
• Right

 The diagram shows forces acting on a box. 
Which statement best describes what will happen to the box as a result of these forces being applied? 

• The box will move up. 
• The box will move to the left.
• The box will move to the right. 
• The box will remain stationary.