Electromagnetic Review 3

What component of a circuit carries the electrical current?

• Battery

• Switch

• Wire

• Lightbulb

What component in a circuit powers the circuit?

• Wire

• Battery

• Switch

• Lightbulb

What does the switch allow a circuit to do?

• Turn on and off

• Power the circuit

• Change colors

Where does the electrical current in an electromagnet NOT flow?

• Wire

• Core

• Battery

What type of energy does the battery have?

• Kinetic

• Potential

How do we know a circuit creates a magnetic field?

• It shocks you

• It turns on a lightbulb

• A compass reacts to it

How are electric fields and magnetic fields different?

• Electric fields need to touch but magnetic fields don't

• Only electric fields can repel

• Only magnetic fields can attract

More coils on an electromagnet will cause the temporary magnet to....

• Be less powerful

• Be more powerful

• Have no effect

How many contact points does a lightbulb have?

• 1

• 2

• 3

Would a thick or thin wire make a stronger electromagnet?

• Thick

• Thin

• The wire size does not matter