Energy Types and Sources

These flashcards cover key terms and definitions relating to various energy types and sources discussed in the lecture.

Hydrogen Fuel Cells

Renewable energy sources that use chemical reactions to release hydrogen from organic materials.

Photovoltaic (PV) Cells

Devices that convert sunlight into electric energy, harvested from solar energy.

Biomass

Organic materials used as energy sources that can be burned directly for heat or converted into biofuels.

Hydroelectric Energy

Energy generated by using the flow of moving water to produce electricity.

Geothermal Energy

Energy produced from the heat within the Earth, often tapped by drilling wells into underground reservoirs.

Wind Turbines

Devices that convert the kinetic energy of wind into electrical energy.

Nuclear Energy

Energy released from the nucleus of an atom, used in generators to create electricity.

Coal

A nonrenewable energy source made from terrestrial plant remains, burned to produce thermal energy.

Natural Gas

A fossil fuel consisting mainly of methane, low in carbon emissions compared to coal and oil.

Tidal Energy

Energy generated from the potential/stored energy of water levels, often related to ocean tides.