WorksheetsFRICTION QUIZ
Total questions: 10
Worksheet time: 10mins
True or False: Friction is the force between two moving surfaces that are touching.
True
False
Friction is a force that acts in a direction ___________ of movement.
similar
opposite
parallel
perpendicular
How can friction be reduced?
Reduce the force acting between the two surfaces.
Reduce the roughness of the two surfaces coming in contact.
Use wax, grease, or oil.
All of the above are ways of reducing friction.
If an object is at rest on an inclined plane, which of the following forces is greatest?
normal force
friction
weight
Both normal force and weight are equal, so they both are the greatest.
What is the force of friction between a 950-N block of ice and the horizontal ground if μ = .12?
65 N
226 N
175 N
114 N
What is the coefficient of static friction if it takes 44 N of force to move an 86-N box on a horizontal surface?
0.78
0.51
0.78 N
0.58 N
Friction is a __________
Contact force
Non-contact force
Magnetic force
Electric force
