Unit 3- Forms of Energy/Circuits Review

Front

What is electrical energy?

Back

Electrical energy is the energy caused by the movement of electrons. It is used to power devices like lamps and computers.

Front

What happens when electrical energy is converted into light energy?

Back

When electrical energy is converted into light energy, it produces visible light, as seen when a lamp is turned on.

Front

What is a circuit?

Back

A circuit is a closed path through which electricity flows. It must be complete for electrical devices to work.

Front

What does it mean for a switch to be closed?

Back

A closed switch allows electricity to flow through the circuit, completing it and turning on the device.

Front

What is mechanical energy?

Back

Mechanical energy is the energy of motion. It is the energy that an object has due to its movement or position.

Front

Can you give an example of mechanical energy?

Back

An example of mechanical energy is a bow and arrow. When the bow is pulled back, it stores mechanical energy.

Front

What are conductors?

Back

Conductors are materials that allow electricity to flow through them easily, like metals such as copper and aluminum.

Front

What is an insulator?

Back

An insulator is a material that does not allow electricity to flow through it easily, like rubber or plastic.

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from heat. It is produced when objects are heated.

Front

What are some sources of thermal energy?

Back

Sources of thermal energy include ovens, heaters, and candles.