BrainPop: Current Electricity

Front

What is direct current (DC)?

Back

Direct current (DC) is an electric current that flows in one direction only, commonly produced by batteries and solar cells.

Front

What is alternating current (AC)?

Back

Alternating current (AC) is an electric current that reverses direction periodically, commonly used in homes and businesses.

Front

What are fuel cells?

Back

Fuel cells are devices that convert chemical energy from fuels into electrical energy through a chemical reaction, often using hydrogen.

Front

What is the importance of conserving electricity?

Back

Conserving electricity helps reduce pollution and the depletion of non-renewable resources, as electricity is often generated from fossil fuels.

Front

How does electricity travel from power plants to homes?

Back

Electricity travels from power plants to homes through transmission wires.

Front

What is the role of a generator?

Back

A generator converts mechanical energy into electrical energy, enabling the production of electricity.

Front

What is static electricity?

Back

Static electricity is the buildup of electric charge on the surface of objects, often caused by friction.

Front

What is a battery?

Back

A battery is a device that stores chemical energy and converts it into electrical energy, providing direct current.

Front

What is a solar cell?

Back

A solar cell is a device that converts sunlight directly into electrical energy, producing direct current.

Front

What are transformers used for?

Back

Transformers are used to change the voltage of electricity for efficient transmission over long distances.