WorksheetsFriction & Coefficient of Friction
Total questions: 10
Worksheet time: 9mins
A 2.0-N force acts horizontally on a 10-N block that is initially at rest on a horizontal surface. The coefficient of static friction between the block and the surface is 0.50.What is the magnitude of the frictional force that acts on the block?
5 N
8 N
2 N
0 N
There are 25N of friction that keep a 10kg brick moving at a constant rate. What is the coefficient of friction?
0.25
0.25N
4
4N
A 0.50 kg puck sliding on a horizontal shuffleboard court is slowed to rest by a frictional force of 1.2 N. What is the coefficient of kinetic friction between the puck and the surface of the shuffleboard court?
0.24
0.42
0.60
4.1
A 27.6 kg block is pulled along a rough level surface at constant velocity by the force . The figure shows the free-body diagram for the block. FN represents the normal force on the block; and f represents the force of kinetic friction. The coefficient of kinetic friction is 0.30, what is the strength of P?
4.0 N
81 N
270 N
27.6 N
Static friction acts on _______ while kinetic friction acts on _________
objects at rest; objects in motion
objects in motion; objects at rest
objects with a large mass; objects with a small mass
objects that accelerate; objects at rest
