Kinetic energy is one type of energy store. It is the energy stored in a moving body. The amount of kinetic energy stored in a body depends on its mass and its speed.
The amount of kinetic energy of a moving object can be calculated using the equation:
Kinetic energy = ½ × mass × velocity2
This is when:
An apple of mass 100 g falls from a tree. It reaches a speed of 6 m/s before landing. What is the gain in kinetic energy of the apple?
How much kinetic energy does a 30 kg dog have when it runs at 4 m/s?