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Energy

The ability to do work or cause a change in an object or system.

Work

The transfer of energy that occurs when a force is applied to an object and it moves in the direction of the force.

Joules

The unit used to measure work and energy, equal to the work done when a force of 1 newton moves an object 1 meter.

Force

The push or pull exerted on an object that causes it to accelerate or change its motion.

Potential Energy

The energy that an object possesses due to its position or condition.

Kinetic Energy

The energy that an object possesses due to its motion.

Electrical Energy

The energy that is produced by the transfer of electric charges.

Heat Energy/Thermal Energy

The energy that is transferred between objects or systems due to a difference in temperature.

Light Energy

The energy that is produced by electromagnetic radiation and allows us to see.

Nuclear Energy

The energy that is released during nuclear reactions, such as those that occur in the sun or in nuclear power plants.

Efficiency

The percentage of energy input that is converted into useful energy output in an energy transfer or conversion process.

Power

The rate at which work is done or energy is transferred, measured in watts.

Non-renewable Energy Sources

Energy sources that cannot be replaced once they are used up, such as fossil fuels and nuclear fuels.

Renewable Energy Sources

Energy sources that can be replenished naturally, such as solar, wind, and hydroelectric power.

Solar Energy

Energy from the sun that is converted into usable forms, such as heat or electricity.

Wind Energy

Energy generated by the movement of air, captured by wind turbines to produce electricity.

Wave Energy

Energy harnessed from the rise and fall of ocean waves, converted into electricity using wave-energy converters.

Tidal Energy

Energy generated by the gravitational pull of the moon on the Earth's tides, used to drive turbines and produce electricity.

Geothermal Energy

Energy obtained from the heat stored within the Earth's crust, used to generate electricity or for heating purposes.

Biomass

Organic matter, such as crops, crop residue, or animal waste, that can be converted into biofuels or used directly for heat and electricity production.

Power Stations

Facilities where energy is converted into electricity, using various energy sources and technologies.

Economic, Environmental, and Social Issues

Factors that need to be considered when evaluating different energy sources, including cost, environmental impact, and societal implications.

Cost per Unit of Electricity

The price paid for each unit of electricity consumed, which varies depending on the energy source and technology used.

Average Energy Consumption

The amount of energy used by an individual per year, measured in joules.