Question # 1

Which of the following is the unit of momentum?

Choose an answer

Nm

Kg ms^-2

Ns

Ns^-1

The formula of momentum is:

Choose an answer

P=Fa

P=mv

F=ma

F=mg

Cream separater works on:

Choose an answer

Centrifuge principle

Centripetal force

Both

None

Two bodies of masses m₁ and m₁ attached to the ends of an inextensible string passing over a frictionless pulley such that both move vertically. The acceleration of the bodies is:

Choose an answer

m1 x m₂ / m₁ + m₂ g

m₁ - m₂ / m₁ + m₂ g

m₁ + m₂ / m₁ - m₃ g

None of these

What is the effect of lubricicantion?

Choose an answer

Increase friction

No effect

Reduce friction

None

If the weight body is greater then tension then body will.

Choose an answer

Move upward

move downward

not move

None

The mass of a body

Choose an answer

Decreases when accelerated

Increases when accelerated

Decreases when moving with high velocity

None of the above

Momentum is defined as the product of

Choose an answer

Mass and acceleration

Force and acceleration

Mass and velocity

Force and velocity

All forces are example of contract forces except:

Choose an answer

Air resistance

Tensional

Push force

Gravitational

A sugar bag of 1 kg has a momentum 25 kg m/s than its velocity is :

Choose an answer

v = 20 m/s

v = 25 kg

V = 25 m/s

v = 25 kg/ms-1

1 Newton =_________

Choose an answer

1 kg ms^-2

1 kg ms

1 kg m^-1s^-2

1 kg^-1m^-1 s^-1

The unit of coefficient of friction .

Choose an answer

Newton

ms^-1

ms^-2

No unit

Action and Reaction are always on:

Choose an answer

Same body

Different bodies

Any body

None of these

More Classes

Other Links

Physics 9th Class English Medium Unit 3 Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer