Static friction
Authored by Mary Festy
Physics
9th Grade
Used 11+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
_______ force is less than or equal to the product of the coefficient of static friction and the normal force.
Kinetic friction
Static friction
Gravitational
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
An object of mass 5kg rests on a horizontal floor. The coefficient static friction is 0.4 and acceleration of gravity is 9.8 m/s2. Determine the maximum force of the static friction.
17.6 N
18 N
19.6 N
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
You need to move a 105-kg sofa to a different location in the room. It takes a force of 102 N to start it moving. What is the coefficient of static friction between the sofa and the carpet?
1
0.099
0.8
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
If you use need a horizontal force of 30.0 N to slide a
12.0-kg wooden crate across a floor at a constant velocity, what is the coefficient of static friction between the crate and the floor?
0.3
0.6
0.255
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
You need to move a 400-kg sofa to a different location in the room. It takes a force of 102 N to start it moving. What is the coefficient of static friction between the sofa and the carpet?
0.6
0.026
0.2
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
An object of mass 7kg rests on a horizontal floor. The coefficient static friction is 0.9 and acceleration of gravity is 9.8 m/s2. Determine the maximum force of the static friction.
55 N
70 N
61.74 N
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
An object of mass 12kg rests on a horizontal floor. The coefficient static friction is 0.2 and acceleration of gravity is 9.8 m/s2. Determine the maximum force of the static friction.
26.9 N
23.52 N
22 N
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