Question Bank
Search, filter, and explore every MCQ across all subjects and topics.
A ball of mass 0.5 kg slows down from 10 m/s to 5 m/s. The work done on the ball is:
The energy possessed by a body due to its configuration or shape is called:
A weightlifter is holding a 100 kg barbell over his head for 5 seconds. The work done by the weightlifter on the barbell is:
When the speed of a car is tripled, the distance required to stop it becomes:
A machine of efficiency 80% is used to lift a 100 N load through 2 m. The work input is:
The KE of a body is 100 J and its mass is 2 kg. Its velocity is:
A body of mass 5 kg is moving with a velocity of 2 m/s. If its velocity is increased to 4 m/s, the work done is:
Which of the following represents the rate of transfer of energy?
If a body moves in a circular path with constant speed, the work done by the force is:
The energy transformation in a hydroelectric power plant is:
What is the power of a heart that beats 72 times a minute and does 1 J of work per beat?
A stone of mass 2 kg is dropped from a tower 20 m high. What is its kinetic energy just before hitting the ground?
Work done by a force can be calculated as the area under which graph?
A 1000 W heater is used for 2 hours. What is the energy consumed in Joules?
A force of 10 N acts on a body of mass 2 kg. If the body starts from rest, its KE after 2 seconds is:
Which energy source is the most abundant and free on earth?
Potential energy of a body of mass 'm' at a distance 'r' from the center of Earth (radius R) where r > R is:
A spring is compressed by 0.1 m. If the spring constant is 100 N/m, the energy stored is: