Electricity Test Review

Front

What is hydroelectric power?

Back

Hydroelectric power is electricity generated by harnessing the energy of flowing water, typically through a dam.

Front

What is a good conductor of electricity?

Back

Most metals, such as copper and aluminum, are good conductors of electricity.

Front

What is the difference between a conductor and an insulator?

Back

A conductor allows electricity to flow through it easily, while an insulator does not allow electricity to flow.

Front

What is static electricity?

Back

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

Front

What is an example of static electricity?

Back

An example of static electricity is when you rub a balloon on your hair and it sticks to the wall.

Front

What is the purpose of an insulator in electrical systems?

Back

Insulators are used to prevent the unwanted flow of electricity, protecting users and ensuring safety.

Front

What is the principle behind charging a laptop?

Back

Charging a laptop involves transferring electrical energy from a power source to the laptop's battery.

Front

What is the role of a transformer in electricity?

Back

A transformer is used to increase or decrease voltage in an electrical circuit.

Front

What is the relationship between voltage, current, and resistance?

Back

According to Ohm's Law, voltage (V) = current (I) x resistance (R).

Front

What is renewable energy?

Back

Renewable energy is energy that is generated from natural resources that can be replenished, such as solar, wind, and hydroelectric power.