Magnetism
What is a magnetic field?
the area around a magnet where magnetic forces can be felt
What is electricity?
a form of energy that can power things
like lights, computers, and phones
What is electromagnetism?
When electricity and magnetism work together to make something magnetic
a material that allows electricity to flow through it easily (for example, metals like copper and aluminum)
Conductor
What are the 2 sides of a magnet?
North and south
4 electricity resources?
Fossil fuel, Hydroelectric, Solar, Geothermal
What makes an electromagnet stronger?
more coils, an iron ore core
a material that does not allow electricity to flow through it easily (for example, rubber, plastic, and glass)
Insulator
What protects us from solar radiation?
The earths magnetic field
What are 5 examples of when we use electricity in a daily life?
Lights, electronics, fridge, air conditioning, heating
What does an electromagnet need to work?
electric current
a type of circuit where all the components are connected one after the other; if one part stops working, the whole circuit stops
Series Circuit
Which direction does earths magnetic field go?
South to north
the flow of electricity through a conductor, like a wire; the movement of electric charge
Current
Electromagnets are always magnetized - True or False
False
a type of circuit where the components are connected side by side; if one part stops working, the other parts can still work
Parallel Circuit
Is the magnetic field around a magnet visible?
No
the force that pushes electricity through a circuit
Voltage
a type of magnet that is created when electricity flows through a wire wrapped around a metal core; the magnetism only works when the electricity is on
Electromagnet
What is static electricity?
The buildup of electric charge on a surface