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