In which motion momentum change but kinetic energy does not ?

Heat is associated with a) kinetic energy of random motion of molecules b) kinetic energy of orderly motion of molecules c) total kinetic energy of random and orderly motion of molecules d) kinetic energy of random motion in some cases and kinetic energy orderly motion in other.

A shot fired from cannon explodes in air. What will be the changes in the momentum and the kinetic energy ?

Assertion: Energy can not be given to a system without giving it momentum. Reason: If kinetic energy is given to a body it means it has acquired momentum.

A particle is projected from a point of an angle with the horizontal. At any instant t, if p is the linear momentum and E the kinetic energy, then which of the following graph is/are correct?

A : Internal forces can change the kinetic energy but not the momentum of the system. R : The net internal force on a system is always zero.

The ratio of momentum and kinetic energy of particle is inversely proportional to the time. Then, this is the case of a

Assertion: Internal forces cannot change linear momentum. Reason: Internal forces can change the kinetic energy of a system.

The momentum of a body is p and its kinetic energy is E. Its momentum becomes 2p. Its kinetic energy will be

Assertion: A light body and a heavy body have same momentum. Then they also have same kinetic energy. Reason: Kinetic energy does not depand on mass of the body.

Is it possible exert a force which does work on a body without changing its kinetic energy? If so, give example.