Understanding Friction

What is the primary function of friction in motion?

• To increase speed

• To resist changes in motion

• To accelerate objects

• To change the direction of motion

Which type of friction occurs when a stationary object is subjected to force but does not move?

• Rolling friction

• Sliding friction

• Fluid friction

• Static friction

What type of friction is experienced when a ball rolls on the ground?

• Rolling friction

• Static friction

• Sliding friction

• Fluid friction

Which type of friction is involved when two surfaces slide past each other?

• Static friction

• Fluid friction

• Rolling friction

• Sliding friction

What is another name for fluid friction when it occurs in the air?

• Rolling friction

• Static friction

• Sliding friction

• Air resistance