Electricity
All matter is made of?
What are the parts of with the charges?
atoms
proton - positive
neutron - neutral
electron - negative
Like charges...... while different charges......
Like charges repel while different charges attract
What do you call the Earth's magnetic field?
The magnetosphere
An electromagnet is a _______ magnet
Temporary
Give examples three examples of electromagnets in everyday life.
speaker, microphone, high speed train
What is electricity or electric current?
The flow of electrons through a conductor.
They are permanent magnets
What are the two parts with the charges?
bar magnets
North pole - positive
South pole - negative
What causes the magnetosphere?
Liquid iron in the center if the Earth.
He discovered the connection between electricity and magnetism.
Hans Christian Oersted
How do electromagnets work?
A wire is coiled around an iron rod, then it's connected to a power source like a battery.
Particles with the same electric charge...
repel each other
What do you call the area where a magnet can attract objects?
How do you represent it in a diagram?
Magnetic field
Represent it using lines and arrows
Why is the magnetosphere important?
It protects the Earth from solar radiation
Ampere discovered...
the particle which is now called the electron
How does an electric bell produce sound?
The hammer hits the bell to produce sound
What happens to the atom when the electron leaves orbit?
It becomes positively charged
Find three magnetic things in your house.
..........
What is the relationship of the geographical and magnetosphere poles?
The Geographical North is the Magnetosphere's South
The Geographical South is the Magnetosphere's North
Who invented the "electromagnetic rotary device"?
What is it?
Michael Faraday
It's a simple magnetic motor
How to speakers and microphones work?
When electricity makes the speaker cone vibrate, it produces sound
Microphones transform sound vibration into electricity.
A stable atom has the same...
number of protons and electrons
Draw a diagram of magnets attracting and repelling
The atmosphere would be damaged by Solar Radiation
Draw a diagram of how a Maglev uses magnets to levitate
....