Biomass

Biomass is any plant derived organic matter available on a renewable basis, including dedicated energy crops and trees, agricultural food and feed crops, agricultural crop wastes and residues, wood wastes and residues, aquatic plants etc. The energy in biomass can be harnessed in waste-to-energy plants or cogeneration plants.

Reference: http://www.nccc.gov.sg/renewables/biomass.shtm

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The Law of Conservation of Energy

The law of conversation of energy states that energy can be converted or transformed from one form to another, but cannot be created or destroyed.

Electrical energy

Electrical energy is the energy flow of electricity.
Needed in all electrical appliances.
Source from charged particles.
Can be transformed into many different forms of energy.

Sound energy

Sound energy enable us to communicate. An important use as a warning signal.

Light energy

Light energy enable us to see.

Heat energy

Heat energy flows from region of higher temperature to a lower temperature.

Kinetic energy

Kinetic energy is energy in a body due to its motion.
ALL moving objects have kinetic energy.