Electromagnetism

Alexandra was preparing to go on a hike in the woods. She gathered the equipment she would need and placed it on the kitchen counter. By chance, she placed her compass near an electrical outlet. Although the compass was not moving, the compass needle turned because ______________.

• the electric current in the outlet produced a magnetic field

• the compass could only be used outdoors

• the kitchen counter was made of a magnetic substance

• the kitchen had a microwave oven

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

According to the diagram, which pair could both be north poles?

• A and B

• B and C

• A and C

• C and D

Tags

NGSS.MS-PS2-3

The ______ are regions where the magnetic force exerted by a magnet is strongest.

• magnetic field lines

• anodes

• magnetic poles

• cathodes

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

This structure produces power for use in the home by converting

• chemical energy into mechanical energy.

• electrical energy into mechanical energy.

• chemical energy into electrical energy.

• mechanical energy into electrical energy.

Tags

NGSS.HS-PS3-3

The diagram shows an electric motor and a generator. Which two areas of physical science are closely related to the development of these devices?

• sound and light

• light and magnetism

• electricity and sound

• electricity and magnetism

Tags

NGSS.MS-PS2-3

Scientists believe that magnetism is caused by the spin of certain atomic particles called

• electrons

• protons

• neutrons

• nuclei

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Which of the following is found in all magnets?

• a geographic pole

• a transformer

• a north pole and a south pole

• an electric field

A magnet will not attract all metal objects. Which material below will a magnet NOT attract?

• Iron

• Aluminum Foil

• Cobalt

• Nickel

Tags

NGSS.MS-PS2-3

Which pair of magnets would result from cutting this magnet in half?

• A

• B

• C

• D

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which of the following best describes an electromagnet?

• permanent magnet

• insensitive to electric currents

• unchanging magnetic properties

• temporary magnet