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Force, Motion and Energy TNPSC Group 1 Questions
TNPSC Group 1 SYLLABUS
Physics
Nature of Universe
General Scientific Laws
Mechanics and Properties of Matter
Force, Motion and Energy
Everyday application of the basic principles of Mechanics
Electricity and Magnetism
Light, Sound and Heat
Nuclear Physics and Laser
Electronics and Communications
Force, Motion and Energy MCQ Questions
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7.
When the mass and velocity are doubled the kinetic energy will
A.
remain the same
B.
increase twice
C.
increase 6 times
D.
increase 8 times
😑
View Answer
Rough Work
Error
ANSWER
:
D. increase 8 times
8.
A small drop of mercury is spherical due to
A.
Viscosity
B.
surface tension
C.
gravity
D.
elasticity
😑
View Answer
Rough Work
Error
ANSWER
:
B. surface tension
9.
The relation amongst velocity(V), frequency (n) and wavelength(lamda) is
A.
V=lamda/n
B.
V=1/n lamda
C.
V=n lamda
D.
V=n/lamda
😑
View Answer
Rough Work
Error
ANSWER
:
C. V=n lamda
10.
what kind of energy works when a watch spring is wound up?
A.
Kinetic energy
B.
Potential energy
C.
Electrical energy
D.
Unknown energy
😑
View Answer
Rough Work
Error
ANSWER
:
B. Potential energy
11.
Which one of the following is a vector quantity?
A.
Momentum
B.
Pressure
C.
Energy
D.
Work
😑
View Answer
Rough Work
Error
ANSWER
:
A. Momentum
12.
Sound energy is converted into electrical energy(audio signal) by a
A.
Microphone
B.
Loud speaker
C.
Telephone
D.
Radio
😑
View Answer
Rough Work
Error
ANSWER
:
A. Microphone
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