Science Questions
All Science MCQs for CTEVT entrance exam.
A body of mass 2 kg is thrown upward with a velocity of 10 m/s. Its KE at the time of projection is:
If the momentum of a body is doubled, its kinetic energy becomes:
A force of 5 N acts on a body and the body moves 10 m at an angle of 60 degrees to the direction of force. The work done is:
The power of an engine which can lift 200 kg of water through 50 m in 10 seconds is (g=10 m/s^2):
If a boy of mass 40 kg runs up a staircase of 20 steps, each 15 cm high, in 10 s, his power is (g=10 m/s^2):
A car is moving with a constant speed of 20 m/s. The engine exerts a force of 500 N. The power of the engine is:
Two bodies of masses 1 kg and 4 kg have the same kinetic energy. The ratio of their linear momenta is:
A bullet of mass 10g is fired with a velocity of 400 m/s. What is its KE?
The work done by a person in lifting a load of 20 kg to a height of 2 m is: (g=10)
An electric bulb of 60 W is used for 5 hours a day. The energy consumed in 30 days is:
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: