Physics Quiz 09

A 40kg cart moving at 3 m/s makes a head a head-on collision with a 20 kg cart at rest, as illustrated in Fig. 1.If the collision is completely inelastic, the speed with winch the carts leave the impact is approximately

0.2 m/s

3 m/s

2 m/s

6 m/s

Correct! Wrong!

Which of the following pairs have identical dimensions?

Work and kinetic energy

Momentum of force and angular momentum

Pressure and surface tension

Momentum and force

Correct! Wrong!

With the help of dimensions method it can be proved that frequency of a stretched wire

Does not depend on the mass of the wire

None of these

Depends on the displacement of the wire

Depends on the mass of the wire

Correct! Wrong!

If the earth stopped rotating, the weight of objects at the equator would

vary with latitude

Be greater

Be the same as before

Be less

Correct! Wrong!

The static friction is

Equal to the dynamic friction

Always less than the dynamic friction

Sometimes greater and sometimes less than the dynamic friction

Always greater than the dynamic friction

Correct! Wrong!

A satellite travels in a circular orbit at a speed of 20,000 km/hr to stay at a constant altitude. To escape from the earth, the speed would have to be increased to

28,000 km/hr

64,000 km/hr

21,000 km/hr

40,000 km/hr

Correct! Wrong!

When a body undergoes an acceleration

Its speed increases

Its velocity increases

It falls toward the earth

A force acts upon it

Correct! Wrong!

The correct unit of magnetic flux in SI system is

Weber

Lumen

Henry

Tesla

Correct! Wrong!

A projectile is fired at an angle of 37° with an initial speed of 100 m/s. What is the approximate versicle component of its velocity after 2s?

60m/s

100m/s

40m/s

80m/s

Correct! Wrong!

If C is proportional to D, then

C is smaller than D

The ration C/D is constant

C is larger then D

The product CD is constant

Correct! Wrong!

A 40kg cart moving at 3 m/s makes a head a head-on collision with a 20 kg cart at rest, as illustrated in Fig. 1.If the collision is completely inelastic, the speed with winch the carts leave the impact is approximately

Which of the following pairs have identical dimensions?

With the help of dimensions method it can be proved that frequency of a stretched wire

If the earth stopped rotating, the weight of objects at the equator would

The static friction is

A satellite travels in a circular orbit at a speed of 20,000 km/hr to stay at a constant altitude. To escape from the earth, the speed would have to be increased to

When a body undergoes an acceleration

The correct unit of magnetic flux in SI system is

A projectile is fired at an angle of 37° with an initial speed of 100 m/s. What is the approximate versicle component of its velocity after 2s?

If C is proportional to D, then

About the author

Muhammad Arslan

A 40kg cart moving at 3 m/s makes a head a head-on collision with a 20 kg cart at rest, as illustrated in Fig. 1.If the collision is completely inelastic, the speed with winch the carts leave the impact is approximately

Which of the following pairs have identical dimensions?

With the help of dimensions method it can be proved that frequency of a stretched wire

If the earth stopped rotating, the weight of objects at the equator would

The static friction is

A satellite travels in a circular orbit at a speed of 20,000 km/hr to stay at a constant altitude. To escape from the earth, the speed would have to be increased to

When a body undergoes an acceleration

The correct unit of magnetic flux in SI system is

A projectile is fired at an angle of 37° with an initial speed of 100 m/s. What is the approximate versicle component of its velocity after 2s?

If C is proportional to D, then

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About the author

Muhammad Arslan