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Wednesday, 20 January 2016

Every day science Physics MCQs

                                      Physics MCQ


1.Very High Frequency (VHF) have __________ wavelengths.

    1. shorter
    2. shortest
    3. longer
    4. longest

Ans: shorter

2.For a fixed mass of gass at constant temperature, if we decrease volume, the pressure will _________.

    1. also decrease
    2. increase
    3. remains constant
    4. none of these

Ans:  increase

3.Which from the following is NOT a conductor?

    1. Aluminium
    2. Silicon
    3. Graphite
    4. All are conductors

Ans: All are conductors

4.Which from the following is true for "Sound"?

    1. Sound cannot travel through a vacuum
    2. Sound cannot travel through gases
    3. Sound cannot travel through liquids
    4. Sound cannot travel through solids

Ans: Sound cannot travel through a vaccum

5.When white light is passed through a prism, it splits into __________ colours.

    1. 5
    2. 6
    3. 7
    4. 8

Ans: 7

6.Sound waves are _________ waves.

    1. Transverse
    2. Electromagnetic
    3. Longitudinal
    4. none of these

Ans: Longitudinal

7.The speed of light is __________.

    1. 280,000 km/s
    2. 300,000 km/s
    3. 320,000 km/s
    4. none of these

Ans: 300,000 km/s

8.Einstein’s famous equation which states that mass and energy are interchangeable is?

    1. E = mc2
    2. E = cm2
    3. M = ec2
    4. M = ce2

Ans: E = mc2

9.What are the primary colours?

    1. White, Black, Blue
    2. Red, Yellow, Blue
    3. Red, Orange, Blue
    4. Red, Green, Blue

Ans: Red, Green, Blue

10.Wind energy is the __________ energy.

    1. Potential
    2. Transverse
    3. Kinetic
    4. Mechanical

Ans: Kinetic

11.The fourth state of matter is

    1. Water
    2. Salts
    3. Vapours
    4. Plasma

Ans: Plasma

12.The device used to convert Alternate Current into Direct Current is called

    1. Anemometer
    2. Battery
    3. Galvanometer
    4. Rectifier

Ans: Rectifier

13.The number of oscillations per second is called the

    1. hertz
    2. waves
    3. pitch
    4. frequency

Ans:  frequency

14.Sound waves from a loudspeaker are caused by

    1. frequency
    2. vibrations
    3. pitch
    4. amplitude

Ans: vibrations

15.The guitar has __________ strings.

    1. 4
    2. 5
    3. 6
    4. 7

Ans: 6

16.There are __________ methods of heat transfer.

    1. 3
    2. 4
    3. 5
    4. 6

Ans: 3

17.Which from the following is NOT a method of heat transfer?

    1. Conduction
    2. Convection
    3. Radiation
    4. All are methods of heat transfer

Ans: All are methods of heat transfer

18.If we heat one end of metallic rod, the other end gets hot. The method of heat transfer is

    1. Conduction
    2. Convection
    3. Radiation
    4. None of these

Ans: Conduction

19.A person seated in front of a fire receives heat by

    1. Conduction
    2. Convection
    3. Radiation
    4. None of these


 Radiation

20.One way of transfer of heat energy is 'convection' which occurs in

    1. Liquids only
    2. Gasses only
    3. Liquids and gasses
    4. Liquids, gasses and solids

Ans: Liquids and gasses

21.Which from the following methods of heat transfer can take place in a vaccum?

    1. Canduction
    2. Convection
    3. Radiation
    4. All

Ans: Radiation

22.Which is the process of science?

    1. Observation > Experiments > Hypothesis
    2. Hypothesis > Observations > Experiments
    3. Observation > Hypothesis > Experiments
    4. Experiments > Observations > Hypothesis

Ans: Observation > Hypothesis > Experiments

23.Which from the following is NOT a stored energy?

    1. Thermal
    2. Gravitational
    3. Elastic potential energy
    4. Chemical

Ans: Thermal

24.Energy can be converted from one form to another, but all energy ends up as

    1. Kinetic energy
    2. Potential energy
    3. Heat energy
    4. Chemical energy

Ans: Heat energy

25.A battery converts ________ into electrical energy.

    1. Potential energy
    2. Chemical energy
    3. Nuclear energy
    4. Mechanical energy

Ans: Chemical energy

26.Which from the following is NOT a renewable energy resource?

    1. Geothermal
    2. Biomass
    3. Solar
    4. Nuclear

Ans: Nuclear

27.Which from the following is NOT a non-renewable energy resource?

    1. Coal
    2. Natural gas
    3. Nuclear
    4. Geothermal

Ans: Geothermal

28.Current is the flow of

    1. Electrons
    2. Protons
    3. Neutrons
    4. Voltage

Ans: Electrons

29.To prevent electric shocks, a/an ________ is placed in the circuit.

    1. Amneter
    2. Voltmeter
    3. Fuse
    4. Diode

Ans: Fuse

30.The mass is highly concentrated form of

    1. Weight
    2. Energy
    3. Force
    4. Momentum

Ans: Energy

31.Ships use ________ to find the depth of the ocean beneath them.

    1. Pictches
    2. Echoes
    3. Frequencies
    4. None of these

Ans: Echoes

32.The vernier calipers is used to measure

    1. Length
    2. Time
    3. Temperature
    4. Viscority

Ans: Length

33.Which electromagnetic wave has the longest wavelength?

    1. Gamma rays
    2. X-rays
    3. Microwaves
    4. Radio waves

Ans: Radio waves

34.Which electromagnetic wave has the shortest wavelength?

    1. Gamma rays
    2. X-rays
    3. Microwaves
    4. Radio waves

Ans: Gamma rays

35.All electromagnetic waves have the same

    1. Frequency
    2. Amplitude
    3. Wavelength in vaccum
    4. Speed in vaccum

Ans: Speed in vaccum

36.The reflection of sound is called

    1. Frequency
    2. Vibration
    3. Echo
    4. Wave

Ans: Echo

37.The shortest distance between crest to crest is called

    1. Phare
    2. thoughs
    3. Amplitude
    4. Wavelength

Ans: Wavelength

38.The speed of sound is fastest in

    1. Solids
    2. Liquids
    3. Gasses
    4. Vaccum

Ans: Solids

39.The speed of sound is slowest in

    1. Solids
    2. Liquids
    3. Gasses
    4. Vaccum

Ans: Gasses

40.Which from the following has the greatest ionising power?

    1. Alpha particles
    2. Beta particles
    3. Gamma rays
    4. All three has same ionising power

Ans: Alpha particles

41.Which from the following has the greatest penetrating power?

    1. Alpha particles
    2. Beta particles
    3. Gamma rays
    4. All three have same penetrating power

Ans: Gamma rays

41.Which from the following has the greatest speed?

    1. Alpha
    2. Beta
    3. Gamma

Ans: Gamma

42.Battery charger converts electrical energy into ________ energy.

    1. Kinetic
    2. Potential
    3. Chemical
    4. Nuclear

Ans: Chemical

43.A loudspeaker changes ________ energy into sound energy.

    1. Chemical
    2. Electrical
    3. Light
    4. Kinetic

Ans: Electrical

44.The strongest part(s) of a magnet is/are

    1. North pole
    2. South pole
    3. North and south pole
    4. Median of north and south pole

Ans: North and south pole

The Nobel prize in physics for the discovery of the law of photoelectric effect was awarded to

    1. Newton
    2. Einstein
    3. Rontgen
    4. Rutherford

Ans: Einstein

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