Science Questions
All Science MCQs for CTEVT entrance exam.
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:
A body of mass 10 kg is moving on a horizontal frictionless surface with velocity 5 m/s. Work done by gravity is:
A boy throws a ball of mass 200g vertically upwards. It reaches a height of 5m and comes back. Total work done by the boy is:
An engine of a vehicle delivers constant power P. The displacement of the vehicle from rest in time t is proportional to:
A block of mass M is pulled along a horizontal frictionless surface by a rope of mass m. A force F is applied at one end of the rope. The work done by the rope on the block is:
A bullet of mass m hits a target and its velocity becomes half after penetrating a distance x. How much further will it penetrate before coming to rest?
A pump can lift 100 kg of water to a height of 100 m in 10 s. If efficiency is 50%, what is the input power?
A particle is moving in a circle of radius r under a force F = -k/r^2. The work done in one full revolution is:
A force F = (5i + 3j) N is applied on a body which displaces it by s = (2i - 1j) m. The work done is: