Magnets
What type of force would be between a north pole and north pole of two magnets?
Repulsive
When a battery of an electromagnet is flipped then this is also changed.
the poles
To make the force between two magnets change, you should _________________.
flip one magnet around
As the size of a magnet gets bigger, then this happens to their magnetic field.
It gets stronger
What part of a compass needle has the magnet?
The north part of the needle
What are the names of the poles of a magnet?
North and South
What type of material could an electromagnet NOT be made of?
Plastic
As you increase an electromagnet's number of coils, then this happens to the magnetic field?
It gets stronger
What are the four important parts of a speaker?
A coil of wire, a magnet, a speaker cone, and a power source
True or False: Magnets only work on Earth because our atmosphere is full of gases (aka air).
False
Where is a magnet's force strongest at?
The ends of the magnet
On a electromagnet, the positive sign end of the battery is where the ______ pole is located.
North
What type of shape is the magnetic field, allowing it to be felt all around the magnet?
3D
A speaker system uses __________ to produce sound.
Hint: not vibration
electromagnets
What is it called when we connect the two ends of out wire to the battery?
A closed circuit
Where is potential energy stored in a magnet?
Magnetic Field
Your electromagnet is NOT working. What might be one of the reasons?
It is not fully connected to the battery
As distance is increased between two magnets, what is true about the magnets?
There is LESS potential energy in their magnetic fields.
What is an important factor of how a speaker works?
The magnet needs to be close/touching the coil of wire.
The magnetic North Pole is actually located where? (Specific answer required)
The Geographic South Pole
True or False: An iron nail has a magnetic field.
False
What two things are required to make an electromagnet?
Wire and a Power Source
When magnetic fields interact with each other, this is what is happening...
(Hint: your answer should include energy)
Kinetic energy transfers between both
The magnet in a speaker attracting and repulsing to the electromagnet is important for what to occur?
The cone's vibration
The flow of energy in a path made of a conductor.
Current