Flash Card
By stretching the rubber strings of a catapult, we store ......... energy in it.
The work done is zero if there is no............... .
Kinetic energy of a body (KE) = .................
The potential energy of your body is least when you are ................ .
1 hp =............ .
.............. is the commercial unit of power.
1 kWh = ......... joules.
The total energy of an object falling freely towards the ground........... .
Potential energy of a body is given by (P.E) =............. .
Work is the product of ............ .
Which of the following factors does not affect the gravitational potential energy of an object?
The work done by a force is said to be ........... when the applied force does not produce displacement.
In which of the following cases is no work done?
What happens to the kinetic energy of an object when its velocity is doubled?
SI unit of work is ........... .
Which of the following quantities is a scalar?
Which of the following is not a conservative force?
If we increase the velocity of a car moving on a flat surface to 4 times its original speed, its potential energy............... .
............... is the capacity to do work.
The work done on an object does not depend on............. .
If a force of 20 N is applied to move an object a distance of 5 m, the work done would be:
A bullet fired from a gun possesses ................. energy.
Which of the following is an example of potential energy?
When some unstable atoms break up, they release tremendous amount of ............ energy.
Choose the odd one out: Kinetic energy, Mechanical energy, Gravitational potential energy, Sound energy.
