Magnetic field/force basics

A compass behaves as it does because each needle acts as a(n) ___________.

• Magnet
• Guide

Tags

NGSS.HS-PS3-5

Magnetic poles that are unlike ________and magnetic poles that are alike ___________.

• run; stay
• attract; repel
• stay; repel
• repel; attract

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What is a magnetic field?

• purple lines with arrows
• area of magnetic force around a magnet
• it's like a really big football field
• area of a magnet around a magnetic force

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

The strongest part of a magnet is...

• the bars.
• the force field.
• the poles. 
• the middle.

Tags

NGSS.3-PS2-3

Are the magnetic field lines in the picture correct?

• Yes, because they point from north to south.
• No, because they point from north to south (they're supposed to go the other way).
• Yes, because the North pole is on the left in all pictures.
• No, because the North pole is on the left in all pictures (it's supposed to be on the right).

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What does the following represent?
⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙
⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙
⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙

• A crowd with binoculars
• A bunch of coaxial cables 
• Uniform magnetic field directed into the screen away from you
• Uniform magnetic field directed out of your screen at you

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What does the following represent?
⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗
⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗
⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗

• Multiplied by a billion
• A piece of modern art
• Uniform magnetic field directed into the screen away from you
• Uniform magnetic field directed out of your screen at you

Tags

NGSS.HS-PS3-5

Magnetic field lines are closet together at the __________.

• poles
• lines

Earth's magnetic poles are in the same place as the geographic poles.

• True
• False

Magnets can interact without touching.

• True
• False

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5