Science- Magnets Flashcards
Electromagnetism
Electric field between electrically charged particles.
5 Variables of electromagnetic strength
- Amount of electricity
- Number of coil-turns
- Amount of wire
- Size of rivet
- Tightness of coil
How is electromagnetism created?
Through all flows of electricity.
True or False: Steel is not an iron.
False
True or False: FE is something that has iron in it.
True
True or False: All metals can attract to magnets
False. Only things with iron can be attracted to magnets.
What is the inner-most layer of the earth?
The core.
What is the middle part of the Earth called?
The mantel.
What is the outer-most part of the Earth called?
The crust.
Where does Earth’s magnetic field come from?
The core.
What is the mixture of metals in the core called?
Alloy.
What three things does Earth’s magnetic field protect us from?
Solar flares, solar wind, and UVA/UVB rays.
What is the Ozone layer?
It is a field around Earth that deflect solar winds.
Name the five types of magnets
- Alnico
- Ferrite
- Lodestone
- Ceramic
- Neodymium
N and N attract
False
S and S repel
True
N and S attact
True
What is the Magnes Legend?
A Greek shepherd named Magnes was walking through a field and noticed his iron staff was collecting rocks as he went along.
What is a magnetic field?
The attractive space around a magnet that allows iron-based metals to stick to it.
What are lines of force?
The lines that show where the magnetic field is.
What is a variable?
A part of an experiment that can change the final conclusion.
What is Alnico made of?
Aluminum, Nickel, Cobalt, and iron.
What is Ferrite made of?
Rubber and iron
What is Ceramic made of?
Pottery/clay and iron substances
