(A) mass of body
(B) speed of body
(C) displacement of the body
(D) both A and B
Tag: Physics Mcq
A brick of mass 2.0 kg is dropped from a rest position 5.0 m above the ground. What is its velocity at a height of 3.0 m above the ground?
(A) 6.3m/s
(B) 5.3m/s
(C) 8.3m/s
(D) 9.3m/s
The average power and instantaneous power becomes equal if the work is done at?
(A) Variable rate
(B) Average rate
(C) uniform rate
(D) high rate
The field or space around the earth in which the gravitational forces acts on a body is called?
(A) Gravitational field
(B) Magnetic field
(C) electric field
(D) idea filed
Which one is bigger unit of work?
(A) 10J
(B) Mega joule
(C) kilo joule
(D) kilo watt hour
A force of 10N acts on a body and body moves 10m distance perpendicular to it. Work done by the force on the body is:
(A) infinite
(B) zero
(C) 100J
(D) 10J
At which angle between force and displacement work done by force is half than its maximum:
(A) 30°
(B) 45°
(C) 60°
(D) 90°
The rate at which work is done is called:
(A) Energy
(B) work
(C) Power
(D) momentum