Friction Block

Return to Newton's Laws

Description:

Place masses on a wooden block and pull the block with a spring scale. A larger force is needed to get the block moving (static vs. kinetic friction). Add mass to show friction is dependant on the normal force. One block the center is hollowed out to show that friction is independent of contact surface area. Blocks with foam rubber and a rubber sheet are available to vary the coefficient of static friction.

Location:

• Blocks: Dr. 4
• Masses: Sh. A-4
• Spring Scales: Dr. 10