Electricity and Magnetism Quiz

What is an electromagnet?

• an object in which negative charges can easily pass through and conduct electricity.

• a temporary magnet that can be turned on and off.

• measure of how much a material opposes the flow of electricity.

• the buildup of negative charges on an object.

What is a conductor?

• object in which negative charges can easily pass through and conduct electricity.

• a temporary magnet that can be turned on and off.

• electric current

• the measure of how much a material opposes the flow of electricity.

What is an insulator?

• a temporary magnet that can be turned on and off.

• an object in which negative charges can easily pass through and conduct electricity.

• an object in which negative charges can not easily pass through and does not conduct electricity.

• the measure of how much a material opposes the flow of electricity.

What is resistance?

• a temporary magnet that can be turned on and off.

• an object in which negative charges can easily pass through and conduct electricity.

• an object in which negative charges can not easily pass through and does not conduct electricity.

• the measure of how much a material opposes the flow of electricity.

What is a parallel circuit?

• has more than one path for electricity to flow. Since each bulb has its own path for electrical current to flow, the more bulbs added to a parallel circuit, the bulbs will continue to stay bright.

• has only one path for electricity to flow. The more bulbs added to a series circuit, the dimmer the bulbs will become.

What is static electricity?

• the measure of how much a material opposes the flow of electricity.

• is the buildup of negative charges on an object.

• an object in which negative charges can not easily pass through and does not conduct electricity.

• electric current

What is a series circuit?

• has more than one path for electricity to flow. Since each bulb has its own path for electrical current to flow, the more bulbs added to a parallel circuit, the bulbs will continue to stay bright.

• has only one path for electricity to flow. The more bulbs added to a series circuit, the dimmer the bulbs will become.

Most electrical conductors allow what to move through them? (two words)

• atoms

• water

• insulation

• electric current

How do you make an electromagnet?

• You need an iron core with metal wrapped around it before attaching it to a battery. The more coils the stronger that magnet will be.

• You need insulation, a lamp, and a battery. Wrap the insulation around the lampt and sit the battery next to it.

• You need an magnet and a battery and a string. Tie the magnet to the battery with the string.

• You need an LED light, a battery and copper tape. Tape the battery to the negetive path from the battery and make sure the postive path touches the positive side of the battery

Series Circuit

• the more bulbs you add, the dimmer they will become.

• the more bulbs you add, the light bulbs will stay bright.