(a) What do you understand by the term kinetic energy ? (b) State two factors which determine kinetic energy of a body. (c) Give four examples of kinetic energy. (d) Two bodies have equal mass. However, the speed of the one body is twice the speed of other body. what is the ratio of kinetic energy of the two bodies ?

What do you understand by the kinetic energy of a body?

What do you understand by lattice energy?

What is potential energy ? State its unit.

State two factors on which the potential energy of a body at a certain height above the ground depends.

What do you understand by the conservation of mechanical energy ? State the condition under which mechanical energy is conserved.

Define the term potential energy of a body. Name its two forms and give one example of each.

Potential energy is defined

Potential energy is defined

The potential energy of water is referred to as