Magnets
Name two things in our unit that attract each other.
Protons and Electrons/ Magnets (South and North poles)
What is a circuit?
The pathway along which electricity flows.
What is an electromagnet?
A coil of wire which produces a magnetic field when electricity flow through it.
What is a circuit breaker?
A switch that works automatically when the number of amps plugged in is greater than what the circuit can handle.
What is an electromagnet?
Electromagnets are magnets created from electricity.
What is repel?
To push or force apart.
What is a closed circuit?
A complete circuit through which electricity flows. There are no breaks.
What is a conductor? Give an example.
A substance through which electricity will flow. Ex. Any metals.
A path that electric current can follow is an _______.
Electric current.
Where is a magnet the strongest?
At its ends (the north and south poles)
What is magnetism?
A physical property of matter. Magnets attract or repel one another.
What is an open circuit?
An incomplete circuit through which electricity will not flow. There are breaks in the path.
What is an insulator? Provide one example.
A material that prevents the flow of electricity. Ex. wood, plastic, rubber, etc.
How are we protected from the sun's flares?
We are protected by our magnetic field.
Provide two examples of when electromagnets are used in the real world
Telephones, speakers, doorbells, junkyards, etc.
What is a magnetic field?
The boundary of a magnet - how far it can attract or repel another magnet.
What is the difference between a series circuit and a parallel circuit?
A series circuit has only one path for electric charges to flow, a parallel circuit has several paths for electric charges to flow. A parallel circuit does not depend on one path.
Where is the junkyard, fire door or doorbell?
Electromagnets in the real world.
What is static electricity?
When positive and negative charges no longer balance.
What three objects do you need to create a magnet from electricity?
Battery, Nail, Wire
What is the relationship between electricity and magnetism?
a moving magnet and wire near each other produces an electric current.
What causes an overloaded circuit?
An overloaded circuit has too many devices turned on, allowing too much current in the circuit. When the amp amount is more than what the circuit can handle, the circuit shuts down.
What is electrostatic discharge?
When electrons jump from one object to another and create a shock.
If you are building a circuit and run out of wire, what can you use instead?
A paper clip, a spoon, nails, any metal objects.
What is electricity measured in? Think about circuit outbreaks
AMPs