Friction and Motion

What is an example of using sliding friction?

• A car tire on a road

• A skateboard rolling

• Spreading sand on an icy path

• A surfer on water

What must cyclists overcome when riding a bike?

• Static friction

• Rolling friction

• Sliding friction

• Fluid friction

What is the main challenge of static friction?

• It is easy to overcome

• It requires no force

• It must be overcome to start motion

• It only occurs in fluids

What type of friction is easier to overcome than sliding friction?

• Static friction

• Rolling friction

• Fluid friction

• All of the above

What is the role of ball bearings in reducing friction?

• They increase friction

• They make surfaces rough

• They allow smooth rolling

• They stop motion

Why does a rolling ball stop?

• Gravity

• Friction

• Waterfalls

• Sand

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For every action, there is an equal and opposite reaction.

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

• Newton's 4th Law

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

• Motion

• Friction

• Work

• Displacement

An object's tendency to resist change, whether it is in motion or remaining still is called -

• Friction

• Inertia

• Force

• Gravity

What type of friction occurs when a book slides across a table?

• Static friction

• Sliding friction

• Rolling friction

• Fluid friction