Magnets
All magnet's have a ________pole and a ________ pole
What is north and south?
Two negatively charged balloons will
repel
A good conductor of electricity
What is metal?
It has a north pole and a south pole.
What is a bar magnet and electromagnet?
Provides a energy for the circuit
What is a battery?
Where is the area of greatest magnetic strength on a bar magnet located?
?What are the poles?
electricity that does not continue to flow after reaching the ground
What is lightning?
. poor electrical and thermal conductor.
What is rubber?
It can operate without a power source.
What is an bar magnet?
Moves energy through the circuit
What are wires?
What type of power source is a coil wrapped around a nail that is connected to a battery?
What is an electromagnet?
A person pulls a wool hat off their head in the winter, causing their hair to stand up straight.
What is like charged that repel?
Poor conductor of electricity
What is wood
Its magnetic field can be turned on or off.
What is electromagnets?
Can be removed from a circuit and the circuit will still work
What is a switch
What is a way to increase the strength of a electromagnet?
What is increase the amount of coils of wire around the nail
and/or
Connect the coil to a high-voltage battery
What is an example of static electricity?
Lightning, rubbing sock on wool then touching doorknob, balloon on hair
What is a good example of a load
What is a lightbulb?
It can attract magnetic or ferrous materials.
What are both types of magnets?
current can flow all the way through it without any obstructions or breakages.
What is a closed circuit?
. If an electromagnet holding a car drops the car,what is the result?
The electric current that is creating the magnetic force will have to be turned off.
When different atoms make contact with one another, electrons can transfer between them.
What is how is static formed?
Plastic that surrounds wires
What is an insulator?
The strength of its magnetic field is adjustable.
What is electromagnets?
which current emerges from a node and branches off to different paths
What is parallel circuits?