Chapter 14

Question 1

Amps

Answer 1

The number of electrons that actually jump

Question 2

Rocks that have iron ore

Answer 2

Lodestone/magnetite

Question 3

Domain

Answer 3

Group of a few 100,000 atoms that chose all act together

Question 4

Magnetism by induction

Answer 4

If you put piece of nonmagnetised metal into a magnetic field the domains organize and the metal is magnetised

Question 5

Inducing

Answer 5

Moving it into something else

Question 6

Permanent magnets

Answer 6

Alnco
Aluminum
Nickel
Cobalt

Question 7

The source of al magnetism

Answer 7

Moving electric charges

Question 8

Ways to demagnetize things (AKA randomizing the domain)

Answer 8

Heat
Force
Another magnetic field

Question 9

What happens to magnets over time

Answer 9

Become weaker bc they compete with each other’s magnetic field

Question 10

The earth is on a angle

Answer 10

23 degrees

Question 11

Angle of declination

Answer 11

Is the difference in degrees between true north and magnetic north

Question 12

Angle of declination

Answer 12

11 degrees east

Question 13

Solar flares

Answer 13

Magnetic explosions on earth

Question 14

MRI stands for

Answer 14

Magnetic
Resonance
Imaging

Question 15

What produces magnetic field

Answer 15

Electric currents in molten core