Physical Science Quiz | Physical Science Short Questions and Answers

Questions
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

Answer: Richter 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

Answer: Angular Momentum
43 Which instrument is used to measure the power of electric circuit ?
A Voltmeter
B Wattmeter
C Wavemeter
D Viscometer

Answer: Wattmeter
44 What is the unit of Astronomical Distance ?
A Light year
B Angstrom
C Weber
D Lux

Answer: Light year
45 Pa(Pascal) is the unit for
A thrust
B pressure
C frequency
D conductivity

Answer: pressure
46 Product of Force and Velocity is called:
A Work
B Power
C Energy
D Momentum

Answer: Power
47 Nuclear sizes are expressed in a unit named
A Fermi
B Angstrom
C Newton
D Tesla

Answer: Fermi
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

Answer: Fall
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

Answer: Kinetic Energy
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

Answer: distance
54 Which instrument is used to measure depth of ocean ?
A Galvanometer
B Fluxmeter
C Endoscope
D Fathometer

Answer: 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

Answer: Nuclear fission
56 Bolometer is used to measure
A Frequency
B Temperature
C Velocity
D Wavelength

Answer: Velocity
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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