MCQ
25021. The unit of energy in SI unit is-
dyne
kg.m
joule
watt
25022. The total motion possessed by a body, is called
impulsive force
momentum
weight
mass
25023. The force, by which the body is attracted towards the center of the earth, is called-
impulsive force
momentum
weight
mass
25024. One watt is equal to-
0.1 joule/s
100 joules/s
1 joule/s
10 joules/s
25025. Joule is the unit of-
force
energy
work
power
25026. The matter contained in a body, is called-
impulsive force
momentum
weight
mass
25027. The rate of doing work is known as-
potential energy
power
kinetic energy
none of these
25028. If the gravitational acceleration of any place is doubled, then the weight of a body will be-
g/2
g
2g
√2g
25029. One joule is equal to-
0.1 N-m
1 N-m
100 N-m
10 N-m
25030. When the spring of a watch is wound, it will possess-
a strain energy
heat energy
kinetic energy
electrical energy
25031. The coefficient of restitution for inelastic bodies is-
zero
between 0 & 1
one
more than one
25032. When a body falls freely under gravitational force, it possesses---- weight.
no
maximum
minimum
25033. The potential energy of a vertically raised body is -----the kinetic energy of a vertically falling body.
equal to
greater than
less than
25034. The velocity of a particle moving with simple harmonic motion is....at the mean position-
zero
equal
minimum
maximum
25035. The unit of work in SI unit is-
newton
joule
erg
kg.m
25036. A redundant frame is also called- frame.
imperfect
deficient
perfect
25037. The rate of change of displacement of a body is called
velocity
momentum
acceleration
none of these
25038. Which of the following is a scalar quantity?
Force
Acceleration
Speed
Velocity
25039. In order to double the period of simple pendulum, the length of the string should be-
halved
quadrupled
doubled
tripled
25040. The slope on the road surface generally provided on the curve is known as-
angle of friction
angle of banking
angle of repose
none of these