Show:
Magnets and Magnetic fields
Poles
Magnetic materials & domains
Electricity and Magnetism
Using Electromagnets
100
Number of poles every magnet has?
What is 2, (North and South)?
100
The magnetic field points away from this.
What is north pole?
100
Iron, cobalt and nickel.
What are the three main metals that can be attracted by a magnet?
100
Description of a solenoid.
What is a wire wrapped into a cylindrical wire coil?
100
How an electromagnet can do work?
What is transforming electrical energy into mechanical energy?
200
A magnet whose domains remains aligned without external field
What is a permanent magnet?
200
The magnetic field points toward this.
What is south pole?
200
Number of times you have to break a magnet in order to isolate a pole?
What is impossible?
200
Temporary magnet created when there is a current in a wire coil.
What is an electromagnet?
200
The components that make up a simple electric motor
What is a wire coil, permanent magnet, and a source of electric current?
300
A temporary magnet created when there is a current in the wire coil.
What is an electromagnet?
300
Determines your current direction on Earth using Earth's magnetic field.
What is a compass?
300
A group of atoms with aligned magnetic poles.
What is a magnetic domain?
300
The interaction between electric charges and magnets
What is electromagnetism?
300
The fuel gauge in a car use this to measure the level?
What is a galvanometer?
400
This causes a magnet to switch poles?
What is changing the direction of its current?
400
The region on a magnet where the magnetic force exerted by a magnet is strongest.
What are the poles?
400
A method of making a permanent magnet using another magnet
What is rubbing them together?
400
The attractive or repulsive force between electric charges and a magnet.
What is electromagnetic force?
400
MP3 produces different voltage in accordance with the music file?
How does an MP3 player produce music?
500
The way to magnetize a wire using just electricity?
What is running an electric current through the wire?
500
Acts as a giant bar magnet with a magnetic field that extends into space.
What is Earth?
500
The explanation of why certain materials are magnetic.
What is materials where each atom behaves like a small magnet?
500
The properties that differ an electromagnet from a regular magnet.
What is: can be turned on and off, poles can be switched, can change its strength?
500
When the energy source is depleted or the battery is removed this will happen.
What is a coil stop moving?