Free Printable GE-3 PHYSICS

1.

What is the unit of Moment Inertia ?

a)

kg m²

b)

kg s²

c)

gram s²

d)

kg m³

2.

Angular momentum = ______ × Momentum of Inertia

a)

velocity

b)

Angular velocity

c)

Linear momentum

d)

None of these

3.

The square root of the mean of the squares of the distances of various particles of the body from the axis of rotation is called ______

a)

RMS Speed

b)

Velocity

c)

Moment of Inertia

d)

Radius of Gyration

4.

I_z = I_x + I_y is statement of which theorem ?

a)

Parallel Axis Theorem

b)

Perpendicular Axis Theorem

c)

Conservativtion of Linear momentum

d)

Teachers have not taught their class

5.

I= I₀ + MR² is statement of which theorem ?

a)

Parallel Axis Theorem

b)

Perpendicular Axis Theorem

c)

Conservativtion of Linear momentum

d)

Teachers have not taught their class

6.

A solid sphere, solid cylinder, and a hollow pipe all have equal masses and radii. If the three of them are released simultaneously at the top of an inclined plane and do not slip, which one will reach the bottom first?

a)

cylinder

b)

pipe

c)

sphere

d)

They all reach the bottom at the same time.

7.

What is the moment of inertia for a rectangular area

4 lines

8.

What is the other name for the moment of inertia?

a)

First Moment of area

b)

Second Moment of area

c)

Couple

d)

torque (optional)

9.

Two stones with radius 1:2 fall from a great height through atmosphere. Their terminal velocities are in the ratio

a)

2:1

b)

1:4

c)

4:1

d)

1:2

10.

Unit of coefficient of viscosity is

a)

Ns/m

b)

Ns²/m

c)

Ns²/m²

d)

a) Ns/m²

11.

Water droplets take a spherical shape (as pictured) because of ____________

a)

adhesion

b)

cohesion

c)

capillary action

d)

solubility

12.

Refer to the picture of water sticking to a leaf; this is occurring because of:

a)

Adhesion

b)

Cohesion

13.

In one dimensional flow, the flow

a)

is steady and uniform

b)

takes place in straight line

c)

takes place in curve

d)

takes place in one direction

14.

What does the variable G in the gravitational force equation represent? $F_g\ =\ G\ \frac{m_1\ m_2}{r^2}$

a)

Universal gravitational constant

b)

Combined masses of the two objects

c)

Gravitational force

d)

Dielectric constant

15.

A satelite is orbiting about the earth at the height of 45 km from the earth surface. the satelite's velocity is $7.88\ \times10^{3\ }ms^{-1}$ . what is the mass of earth?

a)

$6.0\times10^{26}\ kg$

b)

$6.4\ \times10^{6\ }kg$

c)

$5.56\ \times10^{26}kg$

d)

$6.0\ \times10^{24\ }kg$

16.

what is the unit for Gravitional Field strength, $a_g\ =\frac{GM}{r^2}$

a)

$N\ kg\ ^{-1}$

b)

$J\ kg\ ^{-1}$

c)

$m\ s\ ^{-2}$

d)

$m\ s\ ^{-1}$

17.

Newtton's Law of Gravitation states a mangnitude of an attractive force between two point masses is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.

what is it related to ?

a)

Newton's 1st Law of motion

b)

Newton's 2nd Law of motion

c)

Newton's 3rd Law of motion

18.

State the definition of Gravitational field strength

a)

Gravitational force per unit time acting on a body at a point in a gravitational field

b)

The force between two bodies of mass M and m is directly proportional to the product of their masses

c)

Gravitational force per unit mass acting on a body at a point in a gravitational field

19.

which are the following is Newton’s Law of gravitation ?

a)

$F\ =\frac{GMm}{r^2}$

b)

$V\ =\sqrt{\frac{GM}{r}}$

c)

$g=-\ \frac{GM}{r}$

20.

The Ratio of ______ to _____ represent Elastic constants

a)

Strain , Stress

b)

Stress , Strain

c)

Pressure, Force

d)

None of these

21.

According to Hooke's law; Force is equal to -

a)

Spring Constant × Extension

b)

Spring Constant ÷ Extension

c)

Spring Constant + Extension

22.

Hooke's Law fails when a material reaches its:

a)

breakdown

b)

elastic limit

c)

end of tether

d)

fracture stress

23.

Young's Modulus is measure of

a)

hardness

b)

stiffness

c)

ductility

d)

strength

24.

Bending stress developed on a beam depends on

a)

load and geometry only

b)

load, geometry & material of the beam

25.

Flexure rigidity is resistance to bending, measured by

a)

Young's Modulus

b)

Product of Young's Modulus & 2nd Area Moment w.r.t. N.A.

c)

Nature of support of the beam

d)

Beam's area of Cross Section

26.

Deflection of the free end of a cantilever beam loaded at the free end by a concentrated load P.

a)

$\frac{PL^3}{48EI}$

b)

$\frac{PL^3}{3EI}$

c)

$\frac{PL^4}{48EI}$

d)

$\frac{PL^4}{3EI}$

27.

The ratio of shear stress to shear strain is called

a)

Modulus of rigidity

b)

Bulk modulus

c)

Elasticity

d)

I don't know

28.

Reciprocal of Bulk modulus is

a)

compressibility

b)

strain

c)

stress

d)

don't know

29.

Strain has no dimensions and Units.

a)

True

b)

False

c)

Both

d)

I don't know

30.

The change in dimensions per unit original dimension is called

(a)

31.

Compressibility is reciprocal of

a)

Young's modulus

b)

Modulus of elasticity

c)

Shear modulus

d)

Bulk modulus

32.

A balloon 's volume decreases by 1% when its pressure is increased by 80%. So its Bulk modulus is

a)

80 unit

b)

1/80 unit

c)

1 unit

d)

800 unit

33.

The bulk modulus of a material of a wire 1m long is B. So the bulk modulus of a 2m long wire of same material will be

a)

2B

b)

B

c)

2/B

d)

B/2

34.

1 N/m² = ____ dyne /cm²

a)

1

b)

1000

c)

100

d)

10

35.

Young's modulus is property of

a)

solids

b)

solids and liquids

c)

solids or liquids

d)

gases

36.

The graph of stress against strain is always

a)

straight line

b)

parabola

c)

Straight line in elastic region

d)

parabola in elastic region

37.

The unit of Viscosity in SI system is N/m² s

a)

True

b)

False

38.

The unit of Fluidity in SI system is poise^_–1.

a)

True

b)

False

39.

Which of these factors affects Viscosity?

a)

Temperature

b)

Colour

c)

Taste

40.

What is Viscosity?

a)

A fluids colour.

b)

A fluids temperature.

c)

A fluids resistance to flow.

41.

The dimensional formula for moment of Inertia is (a) .

42.

True / False

a)

True

b)

False

c)

Don't know

43.

Why is the school library covered with carpet?

a)

So everyone can make a lot of noise

b)

to help absorb sounds to keep it quiet

c)

because it looks good

d)

to help absorb sounds so it can stay noisy

44.

The number of wavelengths that pass a point each second

a)

frequency

b)

wavelength

c)

pitch

d)

amplitude

45.

The speed of a sound wave depends on

a)

the frequency

b)

the medium

c)

both air temperature and medium

d)

the air temperature

46.

This is the unit used to measure the volume of a sound.

a)

Decibel

b)

Medium

c)

Vibration

d)

Oscilloscope

47.

In Adiabatic process , entropy is (a) .

48.

When the pressure is increased, the M.P of ice (a) .( Type all small letters 🔠)

49.

The electric field inside a perfectly conducting medium is (a) .

50.

The dimension of RC is ________.

4 lines

51.

The ratio of longitudinal strain to lateral strain is (a) .

52.

Reciprocal of longitudinal strain per stress is (a) ( Type all small letters 🔤)

53.

For Elastic substance _____ will be the Poisson ratio.

a)

0.5

b)

1

c)

-1

d)

-0.5

54.

For streamline flow , the Reynolds number will be ______

a)

0 to 2000

b)

2000 to 3000

c)

Above 3000

d)

in negative ( -2000 to 0)

55.

For turbulent flow , the Reynolds number will be ______

a)

0 to 2000

b)

2000 to 3000

c)

Above 3000

d)

in negative ( -2000 to 0)

56.

Which is more elastic medium?

a)

Steel

b)

Rubber

c)

Liquid

d)

Wood

57.

.......... is the number complete cycles in unit time

a)

oscillation

b)

frequency

c)

displacement

d)

period

58.

An oscillation has a function $y\left(t\right)=2.0\ \sin\ \left(3.0t\right)$ cm
What is its angular frequency?

a)

2.0 $rad\ s^{-1}$

b)

3.0 $rad\ s^{-1}$

c)

0.48 $rad\ s^{-1}$

d)

2.1 $rad\ s^{-1}$

59.

What is meant by forced oscillation?

a)

When an object is vibrating at its natural frequency

b)

When an object continues to vibrate after the disturbance is removed

c)

When an object vibrates at a frequency which is different from its natural frequency

d)

When an object receives a vibration from external sources

60.

What two conditions are required for simple harmonic motion to occur?

a)

Acceleration is opposite to displacement

b)

Acceleration is to the direction of displacement

c)

Acceleration is inversely proportional to displacement

d)

Acceleration is proportional to displacement

61.

The acceleration of a particle in SHM is.......

a)

always constant

b)

maximum at the extreme position

c)

maximum at the mean position

d)

always zero

62.

The amplitude of a particle performing SHM is doubled. How does it affect the period of the particle?

a)

The period is doubled

b)

The period becomes zero

c)

The period is halved

d)

The period remains the same

63.

Which graph can be used to describe oscillation?

a)

displacement-time graph

b)

displacement-length graph

c)

amplitude-time graph

d)

time invariant graph

64.

What is meant by forced oscillation?

a)

When an object is vibrating at its natural frequency

b)

When an object continues to vibrate after the disturbance is removed

c)

When an object vibrates at a frequency which is different from its natural frequency

d)

When an object receives a vibration from external sources

65.

What property of the wave is represented by the letter "B"?

a)

amplitude

b)

crest

c)

trough

d)

wavelenght

66.

what is the unit fo frequency

a)

1 Hz

b)

1 m

c)

1 s

d)

1 J

67.

.......... is the number complete cycles in unit time

a)

oscillation

b)

frequency

c)

displacement

d)

period

68.

.......... is the time needed to complete one cycle.

a)

period

b)

displacement

c)

frequency

d)

amplitude

69.

What two conditions are required for simple harmonic motion to occur?

a)

Acceleration is opposite to displacement

b)

Acceleration is to the direction of displacement

c)

Acceleration is inversely proportional to displacement

d)

Acceleration is proportional to displacement

70.

A particle of mass 0.1kg performs SHM of amplitude 0.3 m. The period of SHM is 3.142 s. The maximum force that the particle will experience is......

a)

0.12 N

b)

0.6 N

c)

1.2 N

d)

1.8 N

71.

The acceleration of a particle in SHM is.......

a)

always constant

b)

maximum at the extreme position

c)

maximum at the mean position

d)

always zero

72.

In the equation f = -kx , the unit of k is........

a)

metre per second

b)

newton

c)

newton per metre

d)

newton-second

73.

The amplitude of a particle performing SHM is doubled. How does it affect the period of the particle?

a)

The period is doubled

b)

The period becomes zero

c)

The period is halved

d)

The period remains the same

74.

Match the above column

a)

1-c , 2 - a , 3 - b

b)

1 - b , 2- a , 3 - c

c)

None of the above correct

d)

All of the above two correct

75.

The time taken by amplitude of vibrations to (1/e) times of it's original value is called (a) .

76.

Mean time = _______ × Relaxation time

a)

1

b)

0.5

c)

2

d)

3

77.

The product of relaxation time and angular frequency will be (a) .

78.

The SI unit for measuring heat is the

a)

Pascal

b)

Kelvin

c)

Joule

d)

Calorie

79.

The graph shows how the temperature of the substance changes with time.

a)

gas condensing

b)

gas cooling

c)

liquid cooling

d)

liquid solidifying

80.

The temperature and heat are (a)

quantities

81.

What is happening at the boiling point?

a)

liquid to gas

b)

solid to liquid

c)

gas to liquid

d)

liquid to solid

82.

a)

A

b)

B

c)

C

d)

D

83.

True or false: Heat moves from the cooler object to a warmer object

a)

True

b)

False

84.

Heat always transfers from hot to cold.

a)

True

b)

False

85.

heat is a form of ------------------

(a)

86.

what is energy

a)

capacity to do work

b)

temperature

c)

power

d)

force

87.

what is heat?

a)

form of energy

b)

work

c)

force

d)

temperature

88.

The net force on an electric dipole in an uniform electric field is

a)

0

b)

>0

c)

<0

d)

varies from negative to positive value from negative to positive charge.

89.

The flux of the electric field (24 N/C)i + (30 N/C)j + (16 N/C)k through a 2.0 m² portion of the xz plane is:

a)

32 N × m²/C

b)

34 N × m²/C

c)

42 N × m²/C

d)

60 N × m²/C

90.

What is the electrostatic potential at equatorial point of a dipole?

a)

twice of the axial point

b)

half of the axial point

c)

zero

d)

not defined

91.

How much work must we do on an electron to move it from point A, which is at a potential of +50V, to point B, which is at a potential of -50 V, along the semicircular path shown in the figure? Assume the system is isolated from outside forces. (e = 1.60 × 10^-19C)

a)

1.60 × 10^-17 J

b)

-1.6 J

c)

1.6 J

d)

-1.60 × 10^-17 J

92.

The electric flux passing through the sphere, if an electric dipole is placed at the centre of a sphere is :

a)

1/ε₀

b)

2/ ε₀

c)

zero

d)

none of these

93.

Flux coming out from a positive unit charge placed in air is :

a)

ε₀

b)

ε₀^-1

c)

4πε₀

d)

(4πε₀ )^-1

94.

Which of the following is a symbol of NPN transistor ?

a)

b)

c)

d)

95.

The reverse saturation current in a PN Junction diode is only due to _________________.

a)

minority carriers

b)

majority carries

c)

negative ions

d)

positive ions

96.

The reverse saturation current in a PN Junction diode is only due to _________________.

a)

minority carriers

b)

majority carries

c)

negative ions

d)

positive ions

97.

The forbidden energy gap for Silicon is of the order of

a)

0.7 eV

b)

0.3 eV

c)

1.1 eV

d)

10 eV

GE-3 PHYSICS

Total questions: 97

Worksheet time: 3625secs

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