Electricity and MagnetismBY: Hannah Lee

Magnetism is some type of metal that are attracted or repelled. It happens because north and north pole hate each other and south and south pole hate each other. When we put north and north (or south and south) together, it will repel each other. But when we put north and south together, they will be attracted together. Magnetism, is also to do something with magnetic field. The magnetic field shows that the same poles hate each other and different poles like each other by the magnetic field.

What is Magnetism?

An electricity is an movement of electrons. In atoms, there is lot of protons, neutrons, and electrons. The electrons and protons like each other. But electrons hate each other that they push each other. When one of the electrons get pushed, electrons go to another atom and push another electrons. That makes the electricity, and it happens several times in 1 second.

What is Electricity?

proton

neatron

electron

Magnets are made from the rock named lodestone(magnetite). magnets have two poles. It is north and south. Most permanent magnets are made out of lodestone. But temporary magnet is not that good and the power of magnets will go of in hours. Most of the metals stick to the magnets, but some of the metals don’t. Iron, nickel, cobalt sticks to the magnet but aluminum doesn’t sticks to the magnet.

How do Magnets Work?

iron filings

Electricity, it goes throw the circuit to the house. Circuit is like a trains railroad, because the start and the end is same place. And also when the line is unconnected, the electricity won’t flow. Most wires are made of iron, cobalt, or nickel, because they aregood conductor. If we use so many electricity,there will be no more electricity to use andbecause of that, therewill be a blackout. If blackout happens, everything that workswith electricity willall stop.

How does Electricity Work?

Electricity and magnetism is connected, because electricity could make a magnet and magnet could make an electricity. How? To make a magnet out of electricity, we need a circuit with only batteries and wires. We connect the circuit like the picture number 1, and coil up the metal nail with the connected wire. To make a electricity with a magnet, we need to rub the wire that the electricity is going throw. This happens because of the magnetic field. The circuit that runs with the battery makes a magnetic field and the magnetic field makesthe nail a temporary magnet.If we rub the magnet, it makeselectricity. Why? because if werub it, the magnet pushes theatoms one side and that makesthe electricity.

How are Electricity and Magnetism Connected?

12

We use electricity and magnets everywhere. It uses for lot of electronic devices, especially. Maglev train uses electromagnet to move and to float. We make to float because if we make this train float, there will be no friction. The friction makes everything slow down. But if wemake this float, the only frictionwill be air. This makes the maglevtrain go more faster than the normal trains.

What are some Practical uses of Electricity and Magnets?

The theory of generator and motor is basically same but the only things that are different is what are they doing. Motor uses electricity to make it rotate but generator makes electricity if we rotate the handle. Motor, we use it for electrical vehicle, fan, washing machine , etc. And generator, we use it formost of the fuel using transportation. Even though we use fuels to move transportations but weneed to light up the bulbs, to turn on air conditioner(heater), etc.

Generator and Motor

Static electricity is a little lightning that happens to our lives. This happens because if we have only negative charge or only positive charge, the other materials will want the charge you have. You may have only negative or positive charge because if you rub balloon, etc, the negative will go other side and positive will go other side. But they like each other so the balloon will stick.

Static ElectricityTo stop the static, touch the silicon wall!

AC and DC is type of electricities flow. AC is back and forth form of electricity and DC is going forward electricity. Nikola Tesla invented the AC and Thomas Edison invented the DC. We use DC for battery and AC for home appliance electrical devices.

Alternating Current and Direct Current

The fluorescent light sparkles several times in 1 second!

The electricity is transferred from the other energy. The energy we use is mostly from fuel. But we could use solar power, wind power, or hydroelectric power. This power wouldn’t be exhausted and will have no effects to earth. But fuel energy will run out in some day and could give bad effects to the earth.

Energy

We use electromagnets in lots of electrical devices. We use electromagnets for maglev trains, etc. We also use it for collecting the iron, cobalt, nickel from aluminum and copper. We also use it for the valves and pumps. We turn on and off to let it run or stop.

Electromagnet

Video time!

http://www.astarmathsandphysics.com/igcse_physics_notes/igcse_physics_notes_magnets_and_magnetism.html

http://www.allposters.com/-sp/Design-of-the-Atom-Created-in-a-Lab-at-Columbia-University-Posters_i3591410_.htm

http://www.mikecurtis.org.uk/ks2_magnets.htm

http://www2.actewagl.com.au/Education/Energy/Electricity/MakingElectricity/HowGeneratorsWork.aspx

http://www.howstuffworks.com/electromagnet2.htm

Sources Slide

http://en.wikipedia.org/wiki/File:Consequent_pole_bipolar_series_field_DC_generator.jpg

http://forum.outerspace.terra.com.br/index.php?threads/eu-n-entendo-pq-isso-n-funciona.338369/

http://mail.rdcrd.ab.ca/~smolesky/physics30/3Electromagnetism/day_12_objective.htm

https://www.youtube.com/watch?v=icfJWcwJtWU

http://www.buzzle.com/articles/static-electricity/

Sources Slide 2

http://www.modernsolar.com.au/power/how-solar-power-works.aspx

http://www.ashden.org/wind

http://nothingnerdy.wikispaces.com/HYDROELECTRIC+POWER+-+William

http://www.weirdwarp.com/2013/08/in-the-breaking-bad-series-would-a-large-electro-magnet-turnover-a-truck/

http://nstg.nevada.edu/mmrg/facility/facility_EMpump.htm

http://www.solenoid-valve-info.com/solenoid-valve-basics.htmlhttp://www.solenoid-valve-info.com/solenoid-valve-basics.html

Sources Slide 3

http://www.electricaltechnology.org/2013/05/comparison-between-ac-and-dc.html

http://tx.english-ch.com/teacher/julia/others/thank-you-sincerely/

Sources Slide 4