Energy

This universe is made from matter and Energy.

Definition of Energy

Energy is the capacity for doing work. In the International system of units (SI) energy measure in joules.

Types of Energy

  • Potential
  • Kinetic 
  • Thermal 
  • Electrical 
  • Chemical 
  • Nuclear.
  • Sound
Kinetic Energy that an object has due to its motion. Kinetic energy form electromagnetic radiation.

Potential Energy of an object because of its position. 

Chemical Energy potential energy stored in the chemical bonds of molecules. The energy used to keep the atom connected together.

Thermal Energy Energy due to moving particle in hot objects. kinetic energy form the movement of particles of a substance. The more Thermal energy, the higher the temperature. e.g Tea

Sound Energy A type of energy associated with particles. Sounds are made whenever a force makes an object vibrate. Energy is carried in longitudinal wave. All vibrating object are source of sound waves.

Electrical Energy In electrical circuits a current is the flow of negatively charge particles. Moving electron can pass energy. e.g from battery to bulb.