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Physics Quiz

Total questions: 103

Worksheet time: 52mins

Name
Class
Date
1.

Which of the following force is the strongest force in nature?

a)

Electromagnetic force

b)

Nuclear force

c)

Weak force

d)

Gravitational force

2.

Who is the Father of Experimental Physics?

a)

Galileo

b)

Newton

c)

Albert Einstein

d)

Neils Bohr

3.

Which branch of science deals with nature and natural phenomena?

a)

Biology

b)

Sociology

c)

Physics

d)

Virology

4.

Atomic and molecular phenomena are dealt with by

a)

Applied Mechanics

b)

Quantum Mechanics

c)

Newtonian Mechanics

d)

Fluid Mechanics

5.

What is the standard unit of measurement of Force?

a)

Newton

b)

Joule

c)

Meter

d)

Newton-meter

6.

What does a Voltmeter measure?

a)

Voltage

b)

Current

c)

Length

d)

Speed

7.

Which of the following devices cannot measure distance?

a)

Vernier Calipers

b)

Micrometer

c)

Ruler

d)

Protractor

8.

Mass is a

a)

Scalar quantity

b)

Vector quantity

c)

Free quantity

d)

Dependent quantity

9.

Which of the following are NOT units of time?

a)

Second

b)

Light year

c)

Tropical year

d)

Minute

10.

Which of the following unit is related to sound frequency?

a)

Hertz

b)

Decibel

c)

Second

d)

Meter

11.

In an experiment, it is found that the experimental value is very close to actual value, hence the experimental value can be called

a)

Accurate

b)

Precise

c)

Suitable

d)

Mean

12.

The energy possessed by a body by the virtue of its position is called

a)

Kinetic energy

b)

Potential energy

c)

Total energy

d)

Position energy

13.

Power is

a)

Rate of doing work

b)

Ability to do work

c)

Rate of energy creation

d)

Equivalent to work

14.

The unit of energy has been named after

a)

James Prescott Joule

b)

John Prescott Joule

c)

Jammie Joule

d)

Jessy Joule

15.

Fire is a form of

a)

solar energy

b)

thermal energy

c)

gravitational energy

d)

kinetic energy

16.

The value of gravitational constant was first determined by

a)

Albert Einstein

b)

Isaac Newton

c)

Henry Cavendish

d)

Stephen Hawking

17.

When water is kept in a very hot pan, the entire water heats up. Which mode of heat transfer is responsible for this?

a)

Conduction

b)

Convection

c)

Radiation

d)

Convection along with radiation

18.

What is the expression for heat current? Q is heat, t is time, T is temperature.

a)

ΔQ/Δt

b)

ΔQ/ΔT

c)

ΔT/Δt

d)

ΔQ/ΔTΔt

19.

Zeroth law of thermodynamics helped in the creation of which scale?

a)

Temperature

b)

Heat energy

c)

Pressure

d)

Internal energy

20.

Internal energy of a system is defined as?

a)

The sum of kinetic energies of all molecules of the system

b)

The sum of kinetic and potential energies of all molecules of the system

c)

The sum of potential energies of the system

d)

The average kinetic energy of all molecules

21.

First law of thermodynamics is based on?

a)

Conservation of energy

b)

Conservation of mass

c)

Conservation of momentum

d)

Conservation of work

22.

In which of the following processes is heat transfer equal to zero?

a)

Isentropic

b)

Isochoric

c)

Isothermal

d)

Diathermic

23.

Isothermal process can be represented by which law?

a)

Charle's law

b)

Boyle's law

c)

Gay-Lussac's law

d)

2nd law of thermodynamics

24.

Which of the following is the Kelvin Planck statement?

a)

Heat from a cold reservoir cannot be transferred to a hot reservoir without external work

b)

Efficiency for a reversible cyclic process can be 1

c)

Heat from a hot reservoir can be completely converted into work if process is reversible

d)

Efficiency of a heat engine is less than 1

25.

The second law of thermodynamics states that?

a)

Entropy of an isolated system can never decrease over time

b)

Entropy of a pure crystalline substance at 0K is 0

c)

Energy is conserved

d)

Entropy of a system can never decrease

26.

Average kinetic energy of a gas depends on which of the following factors?

a)

Nature of gas

b)

Temperature

c)

Pressure

d)

Volume

27.

Which of the following describes circular motion?

a)

Periodic

b)

Oscillatory

c)

Simple Harmonic

d)

Rectilinear motion

28.

What is the frequency of SHM?

a)

Number of oscillations per unit time

b)

Time for one oscillation

c)

Time taken for motion to reverse direction

d)

Same as angular frequency

29.

Electromagnetic waves are considered to be which of the following types?

a)

Transverse

b)

Longitudinal

c)

Both Transverse & Longitudinal

d)

Neither longitudinal nor transverse

30.

Which of the following is the purpose of the transmitter?

a)

Converts signals to electric form

b)

Operating the received signal

c)

Converting the signal into a suitable form

d)

Reduces noise from signals

31.

What is the function of the receiver?

a)

Converts signal into electric form

b)

Reducing noise during transmission

c)

Operating on the received signal

d)

Converting the signal into a useful form

32.

Identify the range of optical communication from the following.

a)

Visible to ultraviolet

b)

Microwaves to ultraviolet

c)

Microwaves to x rays

d)

X rays to gamma rays

33.

Which radiations will be most effective for the emission of electrons from a metallic surface?

a)

Microwaves

b)

X rays

c)

Ultraviolet

d)

Infrared

34.

Who is responsible for the photoelectric effect experiment?

a)

Albert Einstein

b)

Max Planck

c)

Heinrich Hertz

d)

de - Broglie

35.

Which theory of light explains the photoelectric effect?

a)

Electromagnetic theory

b)

Magnetic theory

c)

Electric theory

d)

Wave theory

36.

Which theory of light is wave theory or particle theory?

a)

Dynamic physics

b)

Static physics

c)

Quantum mechanics

d)

de - Broglie hypothesis

37.

Which principle suggests that the intensity of light determines its amplitude?

a)

Huygens principle

b)

Classic wave theory

c)

de - Broglie hypothesis

d)

Einstein's particle theory

38.

Why does light travel as a wave?

a)

Due to the small packets called photons

b)

Due to an electric field

c)

Light does not travel as a wave

d)

Due to its electromagnetic nature

39.

Which among the following shows the particle nature of light?

a)

Photoelectric effect

b)

Interference

c)

Refraction

d)

Polarization

40.

The magnitude of which of the following is proportional to the frequency of the wave?

a)

Electrons

b)

Neutrons

c)

Photons

d)

Protons

41.

Which theory is confirmed by the Davisson - Germer experiment?

a)

de - Broglie theory

b)

Newton's theory

c)

Einstein's theory

d)

Planck's theory

42.

Which of the following is used in the Davisson - Germer experiment?

a)

Double slit

b)

Single slit

c)

Electron gun

d)

Electron microscope

43.

Which crystal is used in the Davisson - Germer experiment?

a)

Aluminum

b)

Nickel

c)

Cobalt

d)

Zinc

44.

Which among the following isn't a suitable phenomenon to establish that light is wave motion?

a)

Interference

b)

Diffraction

c)

Reflection

d)

Polarization

45.

A light wave enters from air into glass. How will the energy of the wave be affected?

a)

Decreases

b)

Increases

c)

Remains the same

d)

Independent

46.

A light wave enters from air into glass. How will the frequency of the wave be affected?

a)

Increases

b)

Remains unchanged

c)

Decreases

d)

Insignificant

47.

Which of the following is a form of light whose photons share the same frequency and whose wavelengths are in phase with one another?

a)

Coherent sources

b)

Incoherent sources

c)

Electromagnetic waves

d)

Sunlight

48.

Which among the following is an example of coherent sources?

a)

Fluorescent tubes

b)

LED light

c)

LASER

d)

Tungsten filament lamps

49.

A concave mirror is held in water. What should be the change in the focal length of the mirror?

a)

Halved

b)

Doubled

c)

Remains the same

d)

Increases exponentially

50.

What is the cause of the blue color of the ocean?

a)

Reflection

b)

Scattering of light by water molecules

c)

Total internal reflection

d)

Refraction

51.

What causes haloes (rings) around the sun or the moon?

a)

Total internal reflection

b)

Refraction of light

c)

Reflection of light

d)

Dispersion

52.

X is thicker in the middle than at the edges, whereas, Y is thicker at the edges than in the middle. Identify 'X' and 'Y'.

a)

X = concave lens; Y = convex lens

b)

X = convex lens; Y = concave lens

c)

X = plane lens; Y = convex lens

d)

X = concave lens; Y = plane lens

53.

What is the SI unit of power of a lens?

a)

Watts

b)

Unit less

c)

Diopter

d)

Joule

54.

What is the angle between the incident ray and the emergent ray in a prism called?

a)

Angle of deviation

b)

Angle of refraction

c)

Angle of reflection

d)

Angle of dispersion

55.

Which among the following relates scattering and wavelength of the particle?

a)

Rayleigh scattering

b)

Photon scattering

c)

Wave theory

d)

Cauchy's formula

56.

On what basis is the classification of electromagnetic waves done?

a)

Electromagnetic spectrum

b)

Electric field

c)

Magnetic field

d)

Propagation constant

57.

Identify the principle behind the working of an a.c. generator.

a)

Eddy currents

b)

Faraday's law

c)

Lenz's law

d)

Electromagnetic induction

58.

What is the instrument used in Faraday's experiment?

a)

Galvanometer

b)

Ammeter

c)

Voltmeter

d)

Meter Bridge

59.

Pick out the SI unit of magnetic flux.

a)

Ampere

b)

Tesla meter

c)

Weber

d)

Maxwell

60.

Which of the following is a unit of magnetic flux?

a)

Maxwell

b)

Gauss

c)

Tesla

d)

Ampere

61.

Faraday's laws are result of the conservation of which quantity?

a)

Momentum

b)

Energy

c)

Charge

d)

Magnetic field

62.

Give the SI unit of self-inductance.

a)

Farad

b)

Ampere

c)

Henry

d)

Maxwell

63.

Which among the following is not attracted by magnets?

a)

Iron

b)

Cobalt

c)

Copper

d)

Nickel

64.

Which of the following is a natural magnet?

a)

Magnetic needle

b)

Bar magnet

c)

Magnetite

d)

Horseshoe magnet

65.

Which among the following is the source of the magnetic field (magnetism)?

a)

Mechanical origin

b)

Electrical origin

c)

Chemical origin

d)

Potential origin

66.

Which one of the following is feebly repelled by a magnet?

a)

Diamagnetic materials

b)

Paramagnetic materials

c)

Ferromagnetic material

d)

Ferrimagetic materials

67.

Arrange the following in the increasing order of magnetic susceptibility.

a)

Paramagnetic < Diamagnetic < Ferromagnetic

b)

Paramagnetic < Ferromagnetic < Diamagnetic

c)

Ferromagnetic < Paramagnetic < Diamagnetic

d)

Diamagnetic < Paramagnetic < Ferromagnetic

68.

What is the space around a current- carrying conductor, in which its magnetic effect can be experienced called?

a)

Electric field

b)

Magnetic pole

c)

Magnetic field

d)

Charge distribution

69.

Give the SI unit of the magnetic field.

a)

Ampere

b)

Tesla

c)

Oersted

d)

Weber

70.

Identify the type of materials which develop electric currents in them, when an electric field is applied.

a)

Elastomers

b)

Conductors

c)

Insulators

d)

Polymers

71.

In series connection of resistors, what happens to the current across each resistor?

a)

Increases

b)

Decreases

c)

Remain the same

d)

Initially increases and then decreases

72.

Number of electrons in 1 Coulomb charge is

a)

6.25*1018

b)

6.25*1020

c)

6.25*1025

d)

6.25*1023

73.

Which group among the following is insulator?

a)

Silver, copper, gold

b)

Paper, glass, cotton

c)

The human body, wood, iron

d)

Glass, copper, paper

74.

Superconductors have

a)

Almost zero resistivity

b)

Very high resistivity

c)

Temperature-dependent resistivity

d)

Moderate value of resistivity

75.

Coulomb's Law is valid for

a)

Only point charge

b)

For both point charge and distributed charge

c)

Only distributed charges

d)

Neither distributed nor point charge

76.

Which of the following law explains the relation between the charge inside a surface and electric flux?

a)

Gauss's Law

b)

Coulomb's Law

c)

Faraday's Law

d)

Pascal's Law

77.

The system of measurement based on referents in nature, but not with respect to human body parts, is the

a)

natural system.

b)

English system.

c)

metric system.

d)

American system

78.

A hot water bottle containing 1,000 g of water cools from 60 degrees Celsius to 15 degrees Celsius. The heat given off by the water is:

a)

1,000 cal

b)

45,000 cal

c)

850 cal

d)

602 cal

79.

As more heat is added to a sample of water boiling in a stove, its temperature

a)

Remains the same.

b)

Increases

c)

Decreases

d)

Increases, then decreases

80.

During the Student Technologists and Entrepreneurs of the Philippines (STEP) Competition in Landscaping, a water pond transformer changes 216 V across the primary to 12 V across the secondary. If the secondary coil has 10 turns, how many turns does the primary coil have?

a)

10 turns

b)

18 turns

c)

180 turns

d)

228 turns 12 V

81.

Which two waves lie at the ends of the visible spectrum?

a)

Infrared and Ultraviolet rays

b)

Radio waves and microwaves

c)

Radio waves and X-rays

d)

X-rays and Gamma rays

82.

A certain radio station broadcasts at a frequency of 675 kHz. What is the wavelength of the radio wave?

a)

280 m

b)

324 m

c)

400 m

d)

444 m

83.

What energy transformation takes place a generator?

a)

Electrical to mechanical

b)

Heat to mechanical

c)

Mechanical to electrical

d)

Chemical to mechanical

84.

A prefix micro stands for:

a)

1/10

b)

1/100

c)

1/1000

d)

1/1,000,000

85.

Which of the following optical instruments will be used to produce a reduced and inverted image of a distant object?

a)

Camera

b)

Projector

c)

Microscope

d)

Sunglasses

86.

According to the scientific method, what needs to be done to move beyond conjecture or simple hypotheses in a person's understanding of his or her physical surroundings?

a)

Make an educated guess.

b)

Conduct a controlled experiment.

c)

Find an understood model with answers.

d)

Search for answers on the Internet

87.

The heat involved in the change of phase from solid to Liquid water is called

a)

Latent heat of vaporization.

b)

Latent heat of fusion.

c)

Latent heat of condensation.

d)

None of the above

88.

Which of the following sound frequencies would not be heard by the human ear?

a)

25 Hz

b)

20 kHz

c)

1000 Hz u

d)

21 kHz

89.

A 6 ohm and 12 ohm resistors are connected in parallel with each other to a battery. Which of the following is TRUE?

a)

The potential difference across the two resistors is the same.

b)

The resistor values must be equal for the circuit to work.

c)

More current will flow through the 20 ohm resistor.

d)

The current flowing through the resistors is the same.

90.

Which of the following can transform electrical energy to mechanical energy?

a)

Electric bulb

b)

Loud speaker

c)

Electric fan

d)

Television

91.

Which of the following is true about the frequency and velocity of electromagnetic waves?

a)

As frequency increases, wavelength increases

b)

As frequency increases, wavelength decreases

c)

Frequency and wavelength are interdependent of each other

d)

Frequency is constant for all wavelengths

92.

Which phenomenon is best explained by the particle nature of light?

a)

Doppler effect

b)

Interference

c)

Photoelectric effect

d)

Polarization

93.

Diffraction occurs best when in a wave when the slit width is Less than the

a)

wavelength

b)

Light

c)

interference

d)

refraction

94.

If an astronomical Light source is moving away from us, we observe.

a)

a sonic boom

b)

a shift toward longer wavelengths

c)

a blue shift

d)

a shift toward higher frequencies

95.

Vernon is making a picture frame. He sticks a nail into a piece of wood and hits the nail with a hammer. Which form of energy is NOT released when the hammer hits the nail?

a)

Thermal

b)

Kinetic

c)

Sound

d)

Chemical

96.

What is a closed, continuous path through which electrons can flow?

a)

Charge

b)

Voltage

c)

Resistor

d)

Circuit

97.

What is the phenomenon by which the incident light falling on a surface is back into the same medium?

a)

Absorption

b)

Polarization

c)

Reflection

d)

Refraction

98.

Which process of heat transfer happens by the movement of mass from one place to another?

a)

Convection

b)

Induction

c)

Conduction

d)

Radiation

99.

What is the number of wave cycles for a given period of time called?

a)

wavelength

b)

period

c)

amplitude

d)

frequency

100.

What results when two out-of-phase sound waves with the same amplitude and frequency arrive at the same place at the same time?

a)

A beat

b)

Cancellation of the two sound waves

c)

A lower frequency

d)

The bouncing of one wave

101.

Hyperopia can be corrected with a/an

a)

Concave Lens

b)

Convex Lens

c)

Eyepiece Lens

d)

Combination of convex and concave Lens

102.

The distance from vertex to focal point of a mirror is called

a)

focal point

b)

focal length

c)

center of curvature

d)

focal radius

103.

According to the thin lens formula, which one of the following is true regarding the focal length of the lens?

a)

f is positive for concave lens

b)

f is negative for convex lens

c)

f is positive for a diverging lens

d)

f is negative for concave lens

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