PHYSICS-101
Friction Force(قوة الاحتكاك)
By:Osama Al-saleh
By:Osama Al-saleh
Friction Force Challenge: Test Your Knowledge!
Welcome to the Friction Force quiz, designed for physics enthusiasts who want to deepen their understanding of friction and motion. Whether you're a student, teacher, or just someone with a passion for physics, this quiz is perfect for testing your knowledge.
What to expect:
- 16 challenging questions
- Multiple choice format
- Topics covering friction force, static and kinetic friction, and more!
In the above figure the rectangular box may slide down with a uniform speed if:
µk=tan(θ)
µk=mg cos(θ)
µk=cos(θ)
µk=mg sin(θ)
Select the correct answers for friction force:
If the friction force is large it can stop the object
The friction force does not depend on the angle of the inclined plane
Hen the normal force increases, the frictional force decreases
The friction force is opposite to the direction of movement
Boxes A and B in (Figure) as shown , both remain at rest.
The friction force on A is smaller than the friction force on B
The friction force on A is equal to the friction force on B.
The friction force on A is larger than the friction force on B.
The friction force on A and B is equal zero.
Н 5-kg box on a horizontal table is pushed by a horizontal force of 22 N as shown on the right.if the coefficient of trіѝtiоn is 0.4, Find the acceleration of a box.
0.2 m/s2
0.7 m/s2
0.4 m/s2
0.94 m/s2
A box of mass 5 kg lies on a rough plane inclined at 30° to the horizontal.The box is held in equilibrium by a horizontal force of magnitude 20 N, as shown in Figure2.The force acts in a vertical plane containing a line.The box is in equilibrium on the point,and it moviing down whith aconstant velocity,Find the coefficient of friction between the box and the plane.
0.887
0.144
0.687
0.344
A 15 kg box on a rough surface is being pushed but not moving. The horizontal component of the force is 120 N. Which statement is TRUE?
The static friction force is 120 N
The static friction force is 190 N
The static friction force is 27 N
The static friction force is 147 N
For the questions below, you push a block over a rough surface. The diagram of the friction force versus your applied force is displayed. What is the maximum static friction force between the object and the surface?
2 N
7.9 N
0 N
4.45 N
If the coefficient of static friction is 2, what is the coefficient of kinetic friction? Assume the normal force is constant.
A=0.804
0.776
0.632
0.506
What is the acceleration and the tension of the block and trolley system shown in below figure if the coefficient of kinetic friction between the trolley and the surface is 0.04?
A=0.51m/s2 ,T=87 N
A=0.56m/s2 ,T=96 N
A=0.96m/s2 ,T=27 N
A=0.70m/s2 ,T=45 N
A rectangular block of mass m sit on top on another similar block which in turn sits on a flat table. The maximum possible frictional force of one block on another is 2m N , what is the coefficient of friction between the two blocks
0.20
0.30
0.40
0.60
A mass of 4 kg rests on a horizontal plane.The plane is gradually inclined until at an angle 15° with the horizontal, the mass just begins to slide. What is the coefficient of static friction between the block and the surface ?
0.15
0.27
0.33
0.51
A physics student pulls a 100 kg chunk of stone with a uniform velocity of 0.5 m/s on a horizontal surface with a horizontal force of 200 N. (Physics students are renowned for their strength.) Assume g = 9.8 m/s2 ,Find the coeffficient of kinetic friction.
0.1
0.2
0.3
0.4
A physics student pulls a 100 kg chunk of stone with a uniform velocity of 0.5 m/s on a horizontal surface with a horizontal force of 200 N. (Physics students are renowned for their strength.) Assume g = 9.8 m/s2. If the rope breaks, how long does it take for the stone to come to rest.
0.55 s
0.25 s
0.48 s
0.76 s
A physics student pulls a 100 kg chunk of stone with a uniform velocity of 0.5 m/s on a horizontal surface with a horizontal force of 200 N. (Physics students are renowned for their strength.) Assume g = 9.8 m/s2 ,How far will the stone travel after the rope breaks?
6 cm
10 cm
22 cm
36 cm
A body of mass 2.0 kg begins to slide down a plane inclined at an angle of 45° with the horizontal. The force of friction will be
A) 19.6 sin 45°
B) 9.8sin 45°
C) 19.6cos 45°
D) 9.8cos 45°
A cubical block rests on an inclined plane of µ= 1/√3, determine the angle of inclination when the block just slides down the inclined plane
40°
30°
50°
20°
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