Physics Quiz 08

Let us suppose that a block resting on an inclined plane just begins to slide down the plane when the angle of inclination is gradually increased to 30, the coefficient of friction will be equal to

cos 30

sin 30

tan 30

cot 30

Correct! Wrong!

A body is said to be perfectly elastic if

Its surface is perfectly smooth

It can freely move

It recovers its original shape/size when the deforming force is removed

It is not affected by external force

Correct! Wrong!

The maximum value of static friction is called

Limiting Friction

Coefficient of friction

Rolling Friction

Normal reaction

Correct! Wrong!

The force of friction that comes into action after the motion has started is known as

Limiting Friction

Dynamic Friction

Only Friction

Static Friction

Correct! Wrong!

A body in equilibrium may not have

Momentum

Speed

Velocity

Acceleration

Correct! Wrong!

Which of the following pairs have identical dimensions?

Pressure and surface tension

Work and kinetic energy

Momentum and force

Momentum of force and angular mementum

Correct! Wrong!

Which kind of storage device can be carried around?

System Cabinet

Hard Disk

Floppy Disk

All of these

Correct! Wrong!

Let a disc, a cylinder, a solid sphere, and a ring be rolled down in an inclined plane simultaneously. Which will reach first?

Cylinder

Solid Sphere

Disc

Ring

Correct! Wrong!

7 A 30 kg. block lies on a frictionless table and is connected to a 10 kg block by a rope passing over a frictionless pulley

The acceleration acting on 10 kg block is zero

Both the blocks move with the same velocity

Both the blocks are accelerated by the same magnitude

The acceleration of the 10 kg block is 9.8 m/s^2

Correct! Wrong!

Assuming the pulley to be frictionless and mass less, the smallest coefficient of static friction is 0.33 to cause the cylinder to roll. If for the cylinder M=70kg and radius of gyration 400 mm. then

The cylinder will move up and the mass will descend

The cylinder will move up and the mass will also move up

None of these

The cylinder will roll down the plane and mass will ascend

Correct! Wrong!

Let us suppose that a block resting on an inclined plane just begins to slide down the plane when the angle of inclination is gradually increased to 30, the coefficient of friction will be equal to

A body is said to be perfectly elastic if

The maximum value of static friction is called

The force of friction that comes into action after the motion has started is known as

A body in equilibrium may not have

Which of the following pairs have identical dimensions?

Which kind of storage device can be carried around?

Let a disc, a cylinder, a solid sphere, and a ring be rolled down in an inclined plane simultaneously. Which will reach first?

7 A 30 kg. block lies on a frictionless table and is connected to a 10 kg block by a rope passing over a frictionless pulley

Assuming the pulley to be frictionless and mass less, the smallest coefficient of static friction is 0.33 to cause the cylinder to roll. If for the cylinder M=70kg and radius of gyration 400 mm. then

About the author

Muhammad Arslan

Let us suppose that a block resting on an inclined plane just begins to slide down the plane when the angle of inclination is gradually increased to 30, the coefficient of friction will be equal to

A body is said to be perfectly elastic if

The maximum value of static friction is called

The force of friction that comes into action after the motion has started is known as

A body in equilibrium may not have

Which of the following pairs have identical dimensions?

Which kind of storage device can be carried around?

Let a disc, a cylinder, a solid sphere, and a ring be rolled down in an inclined plane simultaneously. Which will reach first?

7 A 30 kg. block lies on a frictionless table and is connected to a 10 kg block by a rope passing over a frictionless pulley

Assuming the pulley to be frictionless and mass less, the smallest coefficient of static friction is 0.33 to cause the cylinder to roll. If for the cylinder M=70kg and radius of gyration 400 mm. then

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About the author

Muhammad Arslan