Friction and Surfaces Quiz

What prevents the toy boat from sliding down the wooden ramp initially?

• The friction between the boat and the ramp

• The size of the boat

• The weight of the boat

• The angle of the ramp

Why does the boat slide down when the ramp is raised to a certain height?

• The boat becomes heavier

• The friction is no longer sufficient to counteract gravity

• The ramp becomes slippery

• The boat's shape changes

How does the carpet affect the friction between the boat and the ramp?

• It decreases the friction

• It increases the friction

• It makes the ramp smoother

• It has no effect on the friction

What is the main reason the person can climb the ramp easily with shoes?

• The person is strong

• The shoes have high friction

• The ramp is not steep

• The shoes are lightweight

How does Velcro help in climbing the steep ramp?

• It reduces the weight of the person

• It provides additional friction

• It makes the ramp less steep

• It changes the surface of the ramp