Magnetism
More Magnets!
Electricity/Motion
Earth's magnetic field
Electromagnets
100
The material magnets stick to
What is iron (cobalt or nickel)
100
A freely hanging magnet will
what is orient itself North/South
100
Takes motion and produces electricity
What is an electric generator
100
Earth's magnetic field is known as this
What is the magnetosphere
100
The core of an electromagnet should be made out of
What is iron
200
The magnetic domains in a chunk of iron that is not magnetic are
not aligned
200
We can show a magnetic field around a magnet by
What is sprinkling iron filings (or moving a compass around and recording the direction it's pointing)
200
This takes electricity to produce motion
What is an electric motor
200
The geographic north pole is actually a
What is a magnetic south pole
200
Increasing the size of loops of an electromagnet does this
What is decreases the strength
300
How many poles every magnet has
What is 2
300
When you split a magnet in half you'll end up with, a) two ends of a magnet b) two magnets that each have an opposite end.
b) two magnets that each have an opposite end
300
Two ways to create an induced current in a wire are
-move a magnet through a coil of wire -move a coil of wire through a magnetic field
300
Trivia: Some animals are able to navigate using this, which does not require sight, hearing, smell, or any of the regular 5 senses.
what is earth's magnetic field.
300
A coiled wire creates an electric field whenever
a current runs through it
400
Electric generators and motors all contain at least a coil of wire and this.
What is a magnet
400
If you let a magnet hang freely, the N end will
point north
400
For a transformer to reduce voltage, use _____ coils on the output side than the input side.
What is less
400
This phenomena is produced by charged particles being steered by earth's magnetic field and hitting gases in the atmosphere, releasing light.
What is the aurora (Northern Lights)
400
To make an electromagnet, you need to use this type of current
What is direct current
500
A magnet near a piece of iron can exert this type of force. a. push b. pull c. push or pull d. neither
What is push or pull
500
A compass at the geographic north pole will point
What is south, towards the magnetic pole.
500
Electric generators create this type of current
what is alternating current (or induced current)
500
Earth's gravity and magnetic field are related in this way
What is NOT AT ALL!
500
Moving a magnet in and out of a coil of wire produces an electric current. This process is known as
what is induction
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