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On a rough surface having greater number of irregularities in the surface the force of friction will be

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Important Questions on Force and Laws of Motion

EASY
Science>Physics>Force and Laws of Motion>Frictional Force
What are the cause of rolling friction?
EASY
Science>Physics>Force and Laws of Motion>Frictional Force
What are the different types of frictional force.
MEDIUM
Science>Physics>Force and Laws of Motion>Frictional Force
The force of friction will increase when two surfaces are
EASY
Science>Physics>Force and Laws of Motion>Frictional Force
The minimum angle that an inclined plane makes with the horizontal when a body placed on it just begins to slide down is called _____.
EASY
Science>Physics>Force and Laws of Motion>Frictional Force
What is coefficient of static friction ?
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Science>Physics>Force and Laws of Motion>Frictional Force

Observe the given activity. What do you conclude from this?

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EASY
Science>Physics>Force and Laws of Motion>Frictional Force
What is rolling friction?
EASY
Science>Physics>Force and Laws of Motion>Frictional Force
A ball rolling along the ground gradually slows down and finally comes to rest,
EASY
Science>Physics>Force and Laws of Motion>Frictional Force
 Define static friction ?
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Science>Physics>Force and Laws of Motion>Frictional Force
An object is at rest on a floor, a force is applied to move that object. Which friction force will come into an action at this moment?
EASY
Science>Physics>Force and Laws of Motion>Frictional Force
Angle of repose and angle of friction are equal.
EASY
Science>Physics>Force and Laws of Motion>Frictional Force
Static friction is self adjusting force
HARD
Science>Physics>Force and Laws of Motion>Frictional Force
A block of mass 2 kg is placed on the floor. The coefficient of static friction is 0.4. If a force of 2.8 N is applied on the block parallel to floor the force of friction between the block and floor (taking g=10 m s-2 ) is :
EASY
Science>Physics>Force and Laws of Motion>Frictional Force

Kinetic friction is directly proportional to

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Science>Physics>Force and Laws of Motion>Frictional Force

The frictional force on an object in a fluid depends on its _____ with respect to the fluid.

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Science>Physics>Force and Laws of Motion>Frictional Force

Two objects A and B are moving on a rough surface as shown in the figure. The object A has greater velocity than B then _____.

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Science>Physics>Force and Laws of Motion>Frictional Force
Cotyledons are also called-
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Science>Physics>Force and Laws of Motion>Frictional Force

Rolling friction is?

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Science>Physics>Force and Laws of Motion>Frictional Force
Which friction of the following is the highest?
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Science>Physics>Force and Laws of Motion>Frictional Force
What is coefficient of kinetic friction.