Electricity and Magnetism Classwork

Front

What is an electromagnet?

Back

An electromagnet is a type of magnet that becomes magnetized when electric current flows through it.

Front

How can you increase the strength of an electromagnet?

Back

You can increase the strength of an electromagnet by adding more coils of wire or increasing the current flowing through the wire.

Front

What is the relationship between current, voltage, and resistance in a circuit?

Back

This relationship is defined by Ohm's Law: Voltage (V) = Current (I) x Resistance (R).

Front

What is the unit of electric current?

Back

The unit of electric current is the Ampere (A).

Front

What is the unit of voltage?

Back

The unit of voltage is the Volt (V).

Front

What is the unit of resistance?

Back

The unit of resistance is the Ohm (Ω).

Front

What particle carries a negative electric charge?

Back

The particle that carries a negative electric charge is called an electron.

Front

What happens to an electromagnet when the electric current is turned off?

Back

When the electric current is turned off, the electromagnet loses its magnetic properties and becomes non-magnetic.

Front

What is the effect of increasing the number of coils in an electromagnet?

Back

Increasing the number of coils in an electromagnet increases its strength.

Front

What is a circuit?

Back

A circuit is a closed loop that allows electric current to flow from a power source to a load and back.