heat hydroelectricity lightning current power static electricity cables negative television positive...

Download HEat hydroelectricity Lightning current PowEr static electricity Cables negative Television positive WiRes Benjamin FranklIn Computers ShockIng ElecTronics

Post on 28-Dec-2015




0 download

Embed Size (px)


  • HEat hydroelectricity Lightning current PowEr static electricity Cables negative Television positive WiResBenjamin FranklIn Computers ShockIng ElecTronics BatterY

  • K-W-L

    Know What you want to know LearnKnowGives us lightPowers electronic devices (x-box/360/computer)Has something to do with electrons.Passes through objects such as water, metal but not rubber.It can cause a fire.Dangerous it can shock you and you can die.Water and electricity are very dangerous.It gives us heat.It tries to get to the ground.It costs money.

  • W What You Want to KnowWhy does electricity try to get to the ground?How do electric eels make electricity?How is electricity made?How is thunder and lightning made?How fast does electricity happen?Why do we use electricity?Are there other ways to power things?Where does electricity come from?Will it ever run out?Does it cause cancer or other illnesses?How does a heater work?Why is putting a fork or a plate with gold or silver trim, in a microwave, dangerous?

  • Research for the DayWhen did Gambo receive electricity?

  • Results of ResearchAnswer: Gambo received electricity in Shania Uncle said 1959 or 1960.Joshua Gr. Pop said 1960.Jenna Pop said 1961.Ben Fodder said 1961.Blake Grandmother said 1960Matthew Internet said 1960.Josh Gill Dad said 1960.

  • Gambo received electricity in 1958. The NL Power provided electricity in Gambo with the completion of the Rattling Brook Hydro development.

  • ElectricityThe AtomThe atom is the basic building block of all matter. Everything living or dead, solid, liquid or gas is made up of atoms.

    (See diagram) atom, nucleus, negative: (3) 2 inner, 1 outer.

  • NucleusNucleus the nucleus is the heavy central part of an atom.

    It contains:Proton positive chargeNeutron (neutral on a car) has no charge does nothing. The positive charged protons are bound inside the nucleus. An atom does not gain or lose positive charges.

  • ElectronsNegative charges that circle the nucleus. Some materials hold onto their electrons very tightly. (We call these insulators).Some materials allow their electrons to move from one atom to another easily. We call these materials conductors. ***Important***(Diagram) 15 + 15- This is a balanced atom. It has the same number of positive(+) and negative (-)charges.

  • Diagram 15+ 12- This atom has lost three electrons. We say it has a charge of + 3. This atom will be attracted to an atom that has a surplus of negative charges. (See diagram 15+ 20-) Negatively charged atom. (More electrons than protons).

  • Opposites Attract

  • Everything you wanted to know about electricityWhat is electricity?Electricity is a type of energy. It is hard to understand because you cant touch it, hear it, smell it or see it. What people can see are the things that electricity can do it can make a toaster burn bread, make a person have a bad hair day, or make a light bulb glow.How is electricity made? Electricity is made anytime that small particles called electrons move from one object or place to another. * Electricity is invisible because electrons are too small to see. 1 billion electrons can fit into the ball at the tip of a ball point pen!

  • Two types of Electricity:Static electricityCurrent electricity

    Parts of an Atom (see handout)

  • Atom Building block of matterNucleus:heavy, central part of the atompositive part of the atomNot able to move easilyElectrons Lightest and smallest part of the atom which circle the nucleus in clouds.Have negative charge.Able to move which causes electricity.

    Negative chargeObjects with extra electrons have a negative charge (-).

    Positive chargeObjects that have a shortage or have lost electrons have a positive charge (+).

    Attraction LawsOpposite attract and likes repel (the same as magnets).+ - - + + +- _

  • Electricity The Men ofAn American named Benjamin Franklin discovered more about electricity. He discoveredelectricity by performing the famous kite flying experiment.

  • The Men of Electricitycontinued.An Italian, Alessandra Volta, discovered/made the first battery. His first battery was made of a pile of metal disks separated by pads soaked in salt water.

  • Using Electricity SafelyIt can cause fires.Water an electricity dont mix.If your hands are wet, or if your standing in water, do not touch any electrical devices.Electricity can travel through water.If wires are frayed or cracked - dont use it. If you want to clean - unplug item first. Dont have too many things plugged in at a time in one outlet.Dont have a cord near or across a sink.Dont pull on a cord. Hold the plug. Dont put metal objects into electrical devices. CSA Canadian Standards Agency

  • What are some inventions that make electricity safer?

    3 prong plugGrounding wiresFuses/breakersGFI (Ground Fault Interceptor)

  • Types of ElectricityStatic means not moving.

    See static electricity handout for more information.

    OtherLED- Light Emitting DiodeLCD- Liquid Circuit Diode

  • Circuit the path through which an electric current travels. The current will not travel unless a circuit is complete and has no breaks.

    Battery - a container that holds the chemicals that make electrical energy.

  • BatteriesProduce a flow of electricity or electric current.A battery has two poles negative and positive.

  • The negative end (-)releases electrons to theoutside circuit. The positiveEnd (+) attracts them fromthe outside circuit.

  • Electrons travel through the circuit from the negative end(-) to the positive end(+), makingan electric current.

    The electric current can only be produced if the metals and chemicals are connected in a continuous loop ???

  • Chemicals in Batteries

  • Alessandro VoltaThe force that pushes the electrons through the circuit is called, voltage. http://www.youtube.com/watch?v=8EEkZJxsnmI&feature=player_detailpageThe volt is named after Alessandro Volta, an Italian scientist, who invented the first battery in 1800.

  • Diagram (battery) label metals, electrodes, electrolytes)

  • Electrolytes a substance in the battery that can conduct electricity. Dry Cell electrolyte is paste.Wet Cell - electrolyte is liquid.

  • Dry Cell Battery

  • Wet Cell Battery

  • Safety Videos http://www.youtube.com/watch?v=IqegBPtyPGIhttp://www.youtube.com/watch?v=13Sd0d_TDNk&feature=relatedhttp://www.youtube.com/watch?v=10YDib4v2gU&feature=relatedhttp://www.youtube.com/watch?v=n6DXkVY8fzs&feature=relatedhttp://www.youtube.com/watch?v=Vv4QjaEb-uQ&feature=relatedhttp://www.youtube.com/watch?v=shDWvkZWFIo

  • Batteries, Bulbs and WiresBatteriesHooked up correctly:Make sure its working !If damaged, throw away (battery acid)

    BulbsAgain, make sure it works!Handle carefully, its made of glass.If broken, dispose in necessary glass containers.

    WiresEnsure each wire is completely insulated before touching.Have wires going to intended objects.If you dont know what it is for, Dont Touch It.

  • When dealing with electricityDo Not!!!Put metal objects in outlets or when using appliances (ex., toaster)Take devices like radios into the bathroom or near the bath.Walk where there are fallen power lines.Climb transmission towers, trees or fly kites near power lines or exposed wires.Pull out plugs by the cord.Take apart electrical appliances (some contain capacitors which store electrical charge even if unplugged)

  • Devices Invented To Prevent ShocksFusesBreakersThree-prong PlugGrounds your circuit so you dont get a shockGrounding wires electricity travels to the ground in case insulation fails

  • Class ActivityCreate a safety posterUse illustrations and/or text that:Identify electrical dangers at work and play.Identify electrical safety devices and procedures which protect us from these dangers.

  • Insulators and ConductorsElectric CircuitCurrent is the movement of charges in a conductor. A conductor is any substance that easily let electrons pass through them (i.e., paper clips, copper, penny, key, water, especially salt in water, etc.). An insulator does not allow electrons to flow through it easily. (Not good for letting current flow). (i.e., wool, plastic, straw, paper, glass, wood, cardboard, rubber, etc.) Note: Copper wire vs silver wire.

  • Copper is used in most wiring but silver is a better conductor. But, it costs more therefore the best choice is copper.Charges flow from the negative (-) terminal through a complete unbroken path (circuit) and are attracted back to the positive terminal.

  • Diagram of a simple circuit. (Include filament).

  • If you get a break in the circuit or gap, the current will stop and you will get no flow of electrons. When current flows heat is produced. The heat that is produced causes the thin wire in (filament) in a bulb to glow producing light. (It does not catch fire because there is no oxygen inside the bulb.)

  • Diagram - 3 Light bulbs in circuit. (Current needs to go all the way around. It does