Can work be done by a system without changing its volume?

Can momentum of a system be changed without changing its K.E.?

Can momentum of a system be changed without changing its kinetic energy ? Give example.

Can Kinetic energy of a system be changed without changing its momentum ?

Choose the correct statement regarding a system of particles. Internal forces can change the kinetic energy of the system without changing system's momentum O Impulse can be defined as a very large force that acts for a very short time and causes finite change in momentum. Internal forces can change the potential energy of the system without changing system's momentum Internal forces can change the mechanical energy of the system without changing system's momentum.

In changing the state of thermodynamics from A to B state, the heat required is Q and the work done by the system is W. The change in its internal energy is

For a gaseous system, if heat rejected by the system is 100 J and work done by the system is 20 J , then change in internal energy is