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Free download in PDF Physical Science Short Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
41
What is the scale used for measuring the intensity of the earthquake?
[A]
Metric Scale
[B]
Quake Scale
[C]
Richter Scale
[D]
Epicentre Scale
42
An artificial Satellite revolves round the Earth in circular orbit, which quantity remains constant?
[A]
Angular Momentum
[B]
Linear Velocity
[C]
Angular Displacement
[D]
None of these
43
Which instrument is used to measure the power of electric circuit ?
[A]
Voltmeter
[B]
Wattmeter
[C]
Wavemeter
[D]
Viscometer
44
What is the unit of Astronomical Distance ?
[A]
Light year
[B]
Angstrom
[C]
Weber
[D]
Lux
45
Pa(Pascal) is the unit for
[A]
thrust
[B]
pressure
[C]
frequency
[D]
conductivity
46
Product of Force and Velocity is called:
[A]
Work
[B]
Power
[C]
Energy
[D]
Momentum
47
Nuclear sizes are expressed in a unit named
[A]
Fermi
[B]
Angstrom
[C]
Newton
[D]
Tesla
48
Stars appears to move from east to west because
[A]
all stars move from east to west
[B]
the earth rotates from west to east
[C]
the earth rotates from east to west
[D]
the background of the stars moves from west to east
Answer: the earth rotates from west to east
49
A piece of ice is dropped in a vesel containing kerosene. When ice melts, the level of kerosene will
[A]
Rise
[B]
Fall
[C]
Remain Same
[D]
None of these
50
Energy possessed by a body in motion is called
[A]
Kinetic Energy
[B]
Potential Energy
[C]
Both A and B
[D]
None of these
51
A man presses more weight on earth at :
[A]
Sitting position
[B]
Standing Position
[C]
Lying Position
[D]
None of these
Answer: Standing Position
52
Intensity of sound at a point is ____ its distance from the source.
[A]
directly proportional to
[B]
inversely proportional to
[C]
directly proportional to square of
[D]
inversely proportional to square of
Answer: inversely proportional to square of
53
Light year is a unit of
[A]
time
[B]
distance
[C]
light
[D]
intensity of light
54
Which instrument is used to measure depth of ocean ?
[A]
Galvanometer
[B]
Fluxmeter
[C]
Endoscope
[D]
Fathometer
55
The nuclear reaction in which a heavy nucleus splits into two nuclei of nearly equal mass is called
[A]
Nuclear fusion
[B]
Nuclear fission
[C]
Nuclear reaction
[D]
Fast breeding
56
Bolometer is used to measure
[A]
Frequency
[B]
Temperature
[C]
Velocity
[D]
Wavelength
57
If no external force acts on a system of bodies, the total linear momentum of the system of bodies remains constant. Which law states that ?
[A]
Newton’s first law
[B]
Newton’s Second Law
[C]
Newton’s Third Law
[D]
Principle of conservation of linear momentum
Answer: Principle of conservation of linear momentum
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