What kind of rock did he use to magnetize the pin? Where can I get that type of rock?

Lodestone. You can find 'em online if you google it.

Which way is North? Would the poles of the needle change if Brit Cruise magnetized it by rubbing the lodestone in the other direction?

I believe so, since he would be aligning the atoms in the opposite direction.

What other kinds of naturally occurring magnets are there other than lodestone?

Naturally occurring magnets or lodestones "magnetite", have been be used to make iron into magnets for centuries by polarizing the iron, however this type of magnet is not long lasting nor reliable enough for use in today's automobiles.

How are magnetism and electricity related?

You can convert magnetism into electricity and vice-versa.

I don't have any lodestone. But I have other kinds of magnets. Will this experiment work with other kinds of magnets?

Yes, every magnet will be slightly different, but it overall would be pointing in the same direction as in the video

why did he keep moving the leaf

Just to show that the needle would always point North, regardless of where he moves it

where can you find natural magnets? what type of rock are they? igneous? metamorphic?

Magnetite is a mineral that occurs in both igneous and metamorphic rocks.

what is the thing he put the needle on how does it work can u use simple magnets rather then lodestone

He just put the needle on a floating leaf. It worked because the magnet is atracted to the earths magnetic fields, and points due north. You can use any magnet to magnatize things.

Main content

Physics library

Course: Physics library > Unit 18

Lesson 1: Discovery of magnetism

Discovery of magnetism

Name: Discovery of magnetism
Uploaded: 2013-02-07T16:12:49Z
Description: Our ancestors noticed that certain rocks were attracted to each other. They also noticed that this force could be transferred onto certain metallic objects!

Google Classroom

Our ancestors noticed that certain rocks were attracted to each other. They also noticed that this force could be transferred onto certain metallic objects! Created by Brit Cruise.

Want to join the conversation?

Sort by:

♦SamuelM♦
Posted 10 years ago. Direct link to ♦SamuelM♦'s post “What kind of rock did he ...”
What kind of rock did he use to magnetize the pin? Where can I get that type of rock?
Button navigates to signup pageComment on ♦SamuelM♦'s post “What kind of rock did he ...”
(108 votes)
Answer
- eugene.nulph
  Posted 10 years ago. Direct link to eugene.nulph's post “Lodestone. You can find '...”
  Lodestone. You can find 'em online if you google it.
  Comment on eugene.nulph's post “Lodestone. You can find '...”
  (83 votes)
Anton Popov
Posted 10 years ago. Direct link to Anton Popov's post “Which way is North? Would...”
Which way is North? Would the poles of the needle change if Brit Cruise magnetized it by rubbing the lodestone in the other direction?
Button navigates to signup pageButton navigates to signup page
(3 votes)
Answer
- Ernest Gu
  Posted 10 years ago. Direct link to Ernest Gu's post “I believe so, since he wo...”
  I believe so, since he would be aligning the atoms in the opposite direction.
  Comment on Ernest Gu's post “I believe so, since he wo...”
  (8 votes)
CaptainFluffy
Posted 10 years ago. Direct link to CaptainFluffy's post “does this mean if you hav...”
does this mean if you have a magnetized rock and pin you can you make your own compos?
and if you put the rock the direction the sun sets which is the west you can know where north is cool!
Button navigates to signup pageComment on CaptainFluffy's post “does this mean if you hav...”
(5 votes)
Answer
♦Patrick Z.♦
Posted 10 years ago. Direct link to ♦Patrick Z.♦'s post “What other kinds of natur...”
What other kinds of naturally occurring magnets are there other than lodestone?
Button navigates to signup pageComment on ♦Patrick Z.♦'s post “What other kinds of natur...”
(3 votes)
Answer
- rohit
  Posted 7 years ago. Direct link to rohit's post “Naturally occurring magne...”
  Naturally occurring magnets or lodestones "magnetite", have been be used to make iron into magnets for centuries by polarizing the iron, however this type of magnet is not long lasting nor reliable enough for use in today's automobiles.
  Button navigates to signup page
  (3 votes)
Juliana Ruef
Posted 10 years ago. Direct link to Juliana Ruef's post “How are magnetism and ele...”
How are magnetism and electricity related?
Button navigates to signup pageButton navigates to signup page
(2 votes)
Answer
- Nuzhah Tarsoo
  Posted 10 years ago. Direct link to Nuzhah Tarsoo's post “You can convert magnetism...”
  You can convert magnetism into electricity and vice-versa.
  Button navigates to signup page
  (2 votes)
Riley
Posted 9 years ago. Direct link to Riley's post “I don't have any lodeston...”
I don't have any lodestone. But I have other kinds of magnets. Will this experiment work with other kinds of magnets?
Button navigates to signup pageButton navigates to signup page
(2 votes)
Answer
- GeniusBrain1000
  Posted 9 years ago. Direct link to GeniusBrain1000's post “Yes, every magnet will be...”
  Yes, every magnet will be slightly different, but it overall would be pointing in the same direction as in the video
  Button navigates to signup page
  (2 votes)
stephanie edwards
Posted 9 years ago. Direct link to stephanie edwards's post “why did he keep moving th...”
why did he keep moving the leaf
Button navigates to signup pageComment on stephanie edwards's post “why did he keep moving th...”
(2 votes)
Answer
- GeniusBrain1000
  Posted 9 years ago. Direct link to GeniusBrain1000's post “Just to show that the nee...”
  Just to show that the needle would always point North, regardless of where he moves it
  Button navigates to signup page
  (2 votes)
AndrewTheKim
Posted 5 years ago. Direct link to AndrewTheKim's post “where can you find natura...”
where can you find natural magnets? what type of rock are they? igneous? metamorphic?
Button navigates to signup pageButton navigates to signup page
(2 votes)
Answer
- Charles LaCour
  Posted 5 years ago. Direct link to Charles LaCour's post “Magnetite is a mineral th...”
  Magnetite is a mineral that occurs in both igneous and metamorphic rocks.
  Button navigates to signup page
  (2 votes)
taqveemulnisa
Posted 9 years ago. Direct link to taqveemulnisa's post “what is the thing he put ...”
what is the thing he put the needle on
how does it work
can u use simple magnets rather then lodestone
Button navigates to signup pageButton navigates to signup page
(2 votes)
Answer
- Joseph Schlueter
  Posted 9 years ago. Direct link to Joseph Schlueter's post “He just put the needle on...”
  He just put the needle on a floating leaf. It worked because the magnet is atracted to the earths magnetic fields, and points due north. You can use any magnet to magnatize things.
  Comment on Joseph Schlueter's post “He just put the needle on...”
  (2 votes)
时若斯/anonymous
Posted 7 years ago. Direct link to 时若斯/anonymous's post “If magnetite is found in ...”
If magnetite is found in stones can the stone magnetise a pin or a needle?
Button navigates to signup pageButton navigates to signup page
(2 votes)
Answer

Physics library

Course: Physics library > Unit 18

Want to join the conversation?

Video transcript