Free Printable 9ET IIT PHY VVN

1.

According to work-energy theorem, Total work done is equal to the change in the __________?

a)

Kinetic Energy of the body

b)

Work done by friction

c)

Work done by gravity

d)

Work done by none

2.

If the magnitudes of momentum & kinetic energy are equal then calculate the velocity of the body?

a)

1 Unit

b)

2 Unit

c)

3 Unit

d)

4 Unit

3.

What is the final velocity of the freely falling body ?

a)

V = 2gh

b)

V = 2g/h

c)

$V\ =\sqrt{2gh}$

d)

$V\ =\ \sqrt{\frac{2g}{h}}$

4.

If a body is moving on an inclined plane of smooth surface then the final velocity(V) is ?

a)

V = 2gh

b)

V = 2ghCosx

c)

V = 2ghSinx

d)

$V\ =\ \sqrt{2gh}$

5.

What will be the normal force when a body is placed on an inclined plane of angle $\theta$

a)

$mgCos\theta$

b)

mgSin $\theta$

c)

mg Tan $\theta$

d)

mg Cot $\theta$

6.

Calculate the final velocity of a body moving on the inclined plane, whose surface is having friction ?

a)

$V\ =\ \sqrt{gl\left(Sin\theta\ -\mu Cos\theta\right)}$

b)

$V\ =\ \sqrt{gl\left(Sin\theta\ +\ \mu Cos\theta\right)}$

c)

$V\ =\sqrt{2gl\left(Sin\theta\ -\ \mu Cos\theta\right)}$

d)

$V\ =\ \sqrt{2gl\left(Sin\theta\ +\mu Cos\theta\right)}$

7.

Do you know the raise in potential energy of the bob when it moved to the extreme position ?

a)

$mgl\left(1-Sin\theta\right)$

b)

$mg\left(1-Cos\theta\right)$

c)

$mglCos\theta$

d)

$mgl\left(1-Cos\theta\right)$

8.

A block of mass 'm' attached to a spring of spring constant 'K' oscillates on a smooth horizontal table.Find the amplitude on compressing the spring?

a)

$x\ =m\sqrt{\frac{v}{k}}$

b)

$x\ =\ k\sqrt{\frac{m}{v}}$

c)

$x\ =v\ \sqrt{\frac{k}{m}}$

d)

$x\ =\ v\sqrt{\frac{m}{k}}$

9.

A bullet of mass 'm' moving with velocity 'v' stops in a wooden block after penetrating through a distance 'x'. Find 'F' the resistance force offered by the block to the bullet?

a)

$F\ =\ \frac{1}{2}\ \frac{mv^2}{x}$

b)

$F\ =\ \frac{1}{2}\ \frac{mx^2}{v}$

c)

$F\ =\ \frac{mv^2}{2}$

d)

None

10.

A pile of driver of mass 'm' is dropped from a height 'h' above the ground. On reaching the ground it pierces through a distance 's' and then stops finally. If 'R' is the resistance offered by ground, then the time of penetration is ?

a)

$t\ =\ \frac{s}{\sqrt{gh}}$

b)

$t\ =\ \frac{2s}{\sqrt{2gh}}$

c)

$t\ =\ \frac{\sqrt{2gh}}{2s}$

d)

$t\ =2s\sqrt{2gh}$

9ET IIT PHY VVN - 06

Total questions: 10

Worksheet time: 20mins

Similar Resources on Wayground