Show:
Static Electricity
Circuits
Magnetic Fields
Electricity Transformed to Magnetism
Magnetism Transformed to Electricity
100
What is all matter made up of?
What are atoms
100
What is an electric charge in motion?
A current
100
A magnet attracts what kinds of materials?
Metals such as iron and steel
100
This object is a coil of wire wrapped around an iron core
An Electromagnet
100
Sliding coiled wire back and forth over a magnet generates what?
Electricity
200
Name the 3 particles all atoms are made of. Include their corresponding charges
What are Protons (+), Electrons (-), Neutrons (no charge/neutral)
200
In order for a an electric current to flow, a circuit must be ______.
Closed
200
What surrounds all magnets?
A Magnetic Field
200
Name one way an electromagnet's power can be increased.
1. Increasing the amount of current running through the wire. 2.Increasing the number of coils. 3. Making the magnetic core larger.
200
Changing a magnetic field produces what?
Electricity
300
When does static electricity occur?
When positive and negative charges between objects that are close to each other are imbalanced.
300
A material which allows an electric charge to easily move through it is called a/an _________.
Conductor
300
All magnets have these what two kinds of poles?
Opposing poles: north-seeking pole & south-seeking pole
300
Name 1 object which use electromagnets to function
Speakers, T.V.'s, Cars, Vacuum Cleaners, Power Tools, Doorbells.
300
Most homes, schools, and businesses today get their energy from these.
Generators
400
How do objects with opposite charges act?
They attract
400
A circuit with two or more paths is called a ________
Parallel circuit
400
What is the largest magnet in the world?
Planet Earth
400
This object uses magnets and electromagnets to produce motion.
A motor
400
The invention which transformed motion into electric current created by Michael Faraday's was called _______.
a Dynamo
500
What is an electric force?
The push or pull between objects that have different charges.
500
A circuit with only one path is called a ________.
Series Circuit
500
This tool aligns north-south so that one end always points to Earth's magnetic north pole and the other end points to Earth's magnetic south pole.
A compass
500
What is one advantage electromagnets have over regular magnets?
Electromagnets can be turned off.
500
Name at least one method for powering a generator.
1. Wind energy 2. Falling water 3. Steam energy 4. Nuclear energy