Forces are responsible for changing the motion of objects ... explain some of the most important interactions in nature. Energy, work and power Energy is a key principle in physics.

The wave motion is turned into rotation, which is then converted into electricity by generators. The wave energy converter’s mechanism enables a large amount of energy to be harvested using a ...

Friction is a force that opposes motion. It is present whenever two surfaces ... surfaces that are moving over each other, some kinetic energy is transformed into heat energy.