Magnetism Review

How can you make a stronger electromagnet?

• increase the number of coils

• add more batteries

• both are incorrect

• both are correct

Tags

NGSS.MS-PS2-3

When we change the distance between two magnets, the force pairs(N-N,S-S or N-S) between them get stronger when they are -----------together.

• far away

• closer

• inside

• outside

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

As the distance between two magnets increases, the strength of the magnetic field-------------------

• increases

• decreases

• increases and then decreases

• decreases and then increases

Tags

NGSS.MS-PS2-3

How do magnets push or pull other objects without touching? This is because the invisible force field around a magnet and it is known as--------------

• magnetic field

• matter

• medium

• non-magnetic field

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Changing the distance between 2 magnets changes the amount of ------energy stored in the magnetic field and the amount of energy that can be transferred out of it as--------------energy

• Potential , Kinetic

• Kinetic, Potential

• Light , Potential

• Thermal ,Kinetic

Tags

NGSS.MS-PS3-2

Magnets work in vacuum because they do not require a -------------- like a solid, liquid or gas

• magnetic field

• medium

• electric field

• poles

Which of the following are testable research questions?

• Only options 1 and 2

• Only Options 2 and 3

• Only Options 1 and 3

• All 3 options are correct

Answer explanation

A testable research question, is a hypthesis, that you can test in real life with the right materials. If you can test how many paper cups make a speaker louder, then it is a testable research question.

Tags

NGSS.MS-LS2-4

Which of the following options are examples of cause-effect relationships?

• Option 1

• Option 2

• Options 1 and 2

• Both are incorrect

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

NGSS.MS-LS3-1

NGSS.MS-LS4-4

Where are magnetic fields the strongest?

• at the north and south poles

• in the center of the magnet

• when magnets are being repelled

• when opposite poles are aligned

Which of the following best describes this picture?

• opposite poles of the magnets are attracting each other

• like poles of the magnets are repelling each other

• the magnetic field is the strongest in the center of each magnet

• an electromagnet has been created

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5