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Flashcards in Magnetism. Deck (22)
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What is a magnet?

A magnet is a material that attracts iron or has materials that can attract iron.

1

How do you demagnetize a magnet?

1. Heating
2. Dropping
3. Other strong impacts

2

What is the mineral in rocks that is magnetic?

Magnetite

3

Where is the magnetic force of a magnet strongest?

On the poles – where the magnetic field lines are closest

4

What is the name for a negatively charged particle?

Electron

5

Every million years or so earths magnetic fields ________ ___________

Reverses direction

6

What is the name of the term where domains line up in the same direction?

Magnetic domains

7

Will this term repel or attract?
To south poles are brought near each other

Repel

8

Will this term repel or attract?
A north pole is brought near a South Pole

Attract

9

Will this term repel or attract?
Two North Poles are brought near each other

Repel

10

Will this term repel or attract?
The south pole is brought near a North Pole

Attract

11

The region of a magnetic force or on a magnet is known as it's _______ _______

Magnetic Field

12

What are the lines called that map out the magnetic field around the magnet

Magnetic field lines

13

True or false
Magnetic field lines always overlap

False
magnetic filed lines never overlap

14

When the magnetic fields of two or more magnets overlap what is the results?

Combined field

15

True or false
All magnets are not made of pure iron

True

16

Earth itself can make magnets out of ___________ material

Ferromagnetic

17

True or False
Magnetic materials are strongest at the polls. The closer the lines the stronger the magnetic field

True

18

What is the definition of ferrimagnetic

The material that show strong magnetic properties

19

What is the definition of the magnetosphere?

A region of earths magnetic fields shaped by solar winds

20

What is definition of an Aurora

Glenn region the arts atmosphere caused by charged particles from the sun.

21

True or false
Do magnetic determination of a location never changes

False
it depends on your location