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The capacity of a body to do work is called energy.
What is energy ?
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Both kinetic energy and potential energy
Energy possessed by an oscillating pendulum of a clock.
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Kinetic energy
Energy possessed by the car moving on the road
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Remains constant
When a body falls towards the Earth then it's total energy
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Sum of kinetic energy and potential energy is mechanical energy.
What is mechanical energy?
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Kinetic energy
Which energy is stored in flowing water ?
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Joule
What is the S.I unit of energy?
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Both Kinetic and Potential energy
A form of energy possessed by a flying bird.
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Potential energy
Write the expression for energy possessed by an object at a certain height above the ground.
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120 J
An object of mass 15 kg is moving with a uniform velocity of 4m/s . What is the kinetic energy possessed by the body.
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200 J
Find the energy possessed by an object of mass 10 kg when it is at a height of 2 m above the ground. Given, g = 10 m/s2.
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100 J
A students caries a bag weighing 5 kg from the ground floor to his class on the first floor that is 2 m high. The work done by the boy is
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8:9
A car and a truck have kinetic energies of 8 x 10 J and 9 x 10 J respectively. If they are brought to a halt at the same distance, find the ratio of the force applied to both the vehicles.
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1:9
A rocket is moving up with a velocity v. If the velocity of this rocket is suddenly tripled, what will be the ratio of two kinetic energies?
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90,000J
Calculate the kinetic energy of a car of mass 750kg moving with a velocity of 54km/. Find the new kinetic energy of a car if passenger of mass 50kg sit in the car?
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1563 J
What is the work to be done to increase the velocity of a car from 30 km/h to 60 km/h if the mass of the car is 1500 kg
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