The Law of Conservation of Energy states that...

energy can neither be created nor destroyed.

energy can be created when a new power source is introduced.

energy is destroyed when a circuit is broken.

energy can be created using a generator.

How were we able to turn the electromagnet off?

Disconnecting the circuit to stop current flow

Hooking the wire up to the battery/

Moving the battery further away from metal objects

What can you use to make an electromagnet?

Wire, battery and iron ore (nail)

Peanut butter, lampshade, hand sanitizer

This is a picture of a simple electromagnet. How can the electromagnet be made stronger?

Add more coils of wire to the nail.

Reverse the poles of the magnet.

Remove all the coils and the nail.

What is most likely to happen when the switch is closed?

A magnetic field should be produced

How are electromagnets different from magnets?

you can turn an electromagnet on/off

magnets have a North and South pole

Based on this picture, which side will have a higher voltage?

Both sides have the same voltage

How do you increase the strength of an electromagnet?

Increase the electric current and increase the number of coils

Decrease the number of batteries and increase the number of coils

Increase the electric current and decrease the batteries

You cannot strengthen an electromagnet

This picture shows a turbine generator used to produce electricity at a geothermal power plant. Electricity is produced by using steam to _____________.

reduce friction in the turbine generators

reduce emissions from the turbine generators

Electromagnetism + Physics

Authored by Charles Martinez

Physics

9th - 11th Grade

NGSS covered

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45 questions

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MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The process of creating a current in a circuit by changing a magnetic field

A. electric generator

B. electric motor

C. electromagnetic induction

D. magnet

Tags

NGSS.HS-PS2-5

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is created when a magnet moves through a coil of wire?

A. an electromagnet

B. a ferromagnet

C. a solenoid

D. an electric current

Tags

NGSS.HS-PS2-5

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What kind of magnet can be turned on and off?

refrigerator magnet

electromagnet

magnetite

iron

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

If you wrap more coils around an electromagnet, it will become

brighter

stronger

weaker

invisible

Tags

NGSS.MS-PS2-3

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is the flow of electricity?

electric motor

Electric current

Electric eel

electric circuit

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

A device that converts electrical energy into kinetic energy

A. electromagnet

B. electromagnetic induction

C. electric motor

D. electromagnetism

Tags

NGSS.MS-PS3-5

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Passing an electric current around an iron object will temporarily make the object magnetic.

True

False

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

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Electromagnetism + Physics

The process of creating a current in a circuit by changing a magnetic field

What is created when a magnet moves through a coil of wire?

What kind of magnet can be turned on and off?

If you wrap more coils around an electromagnet, it will become

What is the flow of electricity?

A device that converts electrical energy into kinetic energy

Passing an electric current around an iron object will temporarily make the object magnetic.

Magnetic fields are created by moving _______.

When an electromagnet's circuit is broken, it loses its magnetic properties.

The magnetic field of an electromagnet ______.

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