Download - Electicity and Magnetism Review
![Page 1: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/1.jpg)
Electricity and Magnetism Review
Test Monday
![Page 2: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/2.jpg)
The Nature of Magnetism
![Page 3: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/3.jpg)
Magnetism
Magnetism is the attraction of a magnet for another object.
![Page 4: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/4.jpg)
Poles
Magnets are strongest at the poles
The north pole repels the other north poles but attracts the south poles.
![Page 5: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/5.jpg)
Magnetic Fields
The area of Force around a magnet is know as magnetic Fields.
![Page 6: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/6.jpg)
Magnets
Opposites attract while similar poles repel.
![Page 7: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/7.jpg)
Magnetic Domains
In a magnetic material most of the clusters of billions of atoms, or magnetic domains, have magnetic fields that are lined up in the same way.
Magnetic Domains- clusters of billions of atoms that have a magnetic field that are lined up parallel in the same way.
![Page 8: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/8.jpg)
Magnets being ruined or dropped
If you heat or drop a magnet they can be ruined.
When a permanent magnet is dropped and cracks into a half it creates 2 new magnets.
![Page 9: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/9.jpg)
The Earth as a Magnet
![Page 10: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/10.jpg)
The Earth and Compasses
The earth acts like a giant magnet with 2 poles and a giant magnetic field.
A compass is a device that has a freely spinning magnetized needle.
![Page 11: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/11.jpg)
Magnetic Declination
Magnetic Declination is the angle between geographic and magnetic poles from where you are on the earth.
![Page 12: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/12.jpg)
Current Electricity and Circuits
![Page 13: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/13.jpg)
Current
Current is the flow of charge or electrons through a material.
An electric current produces a magnetic field.
![Page 14: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/14.jpg)
Three Types of Particles
Protons- found in nucleus/the charge is positive (+)
Neutrons- found in nucleus/the charge is neutral
Electrons- found outside the nucleus/ the charge is negative (-)
![Page 15: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/15.jpg)
3 Parts of a Circuit
Source- a battery
Resistor/Device- a light bulb
Path- a wire
![Page 16: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/16.jpg)
Types of Circuits
Series have 1 path-1 goes out all goes out, more bulbs=dimmer
Parallel have multiple paths- 1 goes out all stay on, more bulbs= nothing happens
![Page 17: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/17.jpg)
Voltage
Voltage is another name for potential difference
Voltage causes the current to flow
Voltage is measured in Volts or (V)
![Page 18: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/18.jpg)
Current
Current is measured in Amps or (A)
![Page 19: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/19.jpg)
Resistance
Resistance is measured in Ohm’s or (Ω)
Ohm’s=volts/amps
Resistance= volts/current
![Page 20: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/20.jpg)
Different Signs
Volts-(V)
Amps-(A)
Ohm’s-(Ω)
![Page 21: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/21.jpg)
Static Electricity
![Page 22: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/22.jpg)
Static Electricity
Static Electricity is the build up of charges on an object
![Page 23: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/23.jpg)
Repel and Attracts
Just like magnetism opposites attract and the similar repels.
![Page 24: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/24.jpg)
How Charges are TransferredFriction- charges transfer when objects rub against each other
Conduction- charges transfer by direct contact
Induction- charges are rearranged or moved in one object while another is brought near
![Page 25: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/25.jpg)
Static Discharge
Static Discharge is the loss of static electricity moving from 1 thing to another
![Page 26: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/26.jpg)
The Law of Conservation of Charge
The Law of Conservation of Charge states that change can’t be made or destroyed.
![Page 27: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/27.jpg)
Materials
![Page 28: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/28.jpg)
Conduction
Conduction are materials that allow electrons to flow freely through them.
Some examples are metals, copper, iron, and water.
![Page 29: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/29.jpg)
Insulators
Insulators are materials that hold on to their electrons, not allowing current to pass though well.
Some examples are rubber, glass, plastic, and wood.
![Page 30: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/30.jpg)
Electromagnets
![Page 31: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/31.jpg)
Solenoid
A solenoid is a current carrying wire surrounding an iron core.
![Page 32: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/32.jpg)
Electromagnets
Electromagnets are useful because they can be turned on and off.
![Page 33: Electicity and Magnetism Review](https://reader034.vdocument.in/reader034/viewer/2022051513/546ee99db4af9fcd268b4838/html5/thumbnails/33.jpg)
The Strength of an Electromagnet
The strength of an electromagnet can be increased by the number of loops, increasing the current, and having a stronger core.