Friction Quiz

Motion opposes what?

(a)  

What are the two types of friction?

• Static friction

• Kinetic friction

What does friction do?

• Slows things down

• Helps things stay in place

• Creates heat

​ (a)   is a force that resists the sliding motion of two surfaces that are touching.

• Friction
• Newton's Laws
• Net
• Free-body diagram

Friction is a force that acts in a/an (a)   direction of movement when Lex pushes a box across the floor.

• similar

• opposite

• parallel

• upward

Tags

NGSS.3-PS2-1

Match the following scenarios with the type of friction experienced.

• Rolling a ball on a wooden floor

• Smooth object over smooth surface

• Pushing a box on a carpet

• Rough object over smooth surface

• Dragging a heavy crate on concrete

• Smooth object over rough surface

• Sliding a book on a glass table

• Rough object over rough surface

Answer explanation

The force of friction will be maximum when both, the object and the surface, are rough.

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

• Motion
• Friction
• Work
• Displacement

Choose the correct sentence to complete the "friction" box.

• Moving an elephant is much more difficult than moving a mouse.

• Stopping a truck requires more force than stopping a skateboard.

• A car rolling down a ramp is pulled by this force.

• Kicking a ball in grass is more difficult than kicking a ball on a sidewalk.

On which surface would a toy car travel the furthest when pushed?

• ice
• carpet
• snow
• sand

Tags

NGSS.3-PS2-1

NGSS.3-PS2-2

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

• similar
• opposite
• parallel
• upward

Tags

NGSS.HS-PS2-1