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Science Assignment
Ashlee Marshall and
Ashley Lenger
Bedroom
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Radio
Computer/laptop
T.V
Phone
Charges
Lava Lamps
Lamps
Lights
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Electric Blanket
Air Conditioner
Fan
Heater
AC vs. DS
• Lava lamps are an AC electricity items.
• It is AC because the Lava Lamps needs than 240v to
power it, and DC can’t supply that amount of
voltage.
Electrical Specifications
• The Voltage for a Lava Lamp is 240 volts because it is AC
electricity.
• The currents is 3 Amp.
• To work out the Power ratings to have to divide the Voltage by
the Currents. That is 240v divided by 3 Amp.
• The power rating is 80 Watts of Power.
The lava lamp circuit
240v A.C
Switches
Thermostat
Light Bulb
Heating
Component
How the Circuit Works
• The circuit works by the electrons travelling around the circuit.
• First the electrons get to the switch, if the switch is open the
electrons will not be able to pass. It is the same if the Thermostat, it
is there to stop the Lava Lamp over heating.
• Next the electrons come to the Heating Component and globe the
electrons will separate evenly because the paths are the same size.
• The electrons will then met up again and the circuit will start again.
Electrical
Theory
What is an electrical Current??
• An electric current of Electrons, flowing through wires and
electronic components. As the electrons are pushed through
pipes by a pump, electric current is pushed through wires by a
battery.
• An Electrical Current can only flow through a closed circuit
Good metals Conductors and why?
• Good metal conductors are metals like Copper,
aluminium and silver.
• In a conductor, electric current can flow freely.
Unlike insulators.
Insulators
• Insulators are materials that don’t allow the electrons to pass
though the material.
• Also insulators have no changes.
• Insulators to keep heat or electricity either in or out of a
container.
• Good Insulators are materials like glass, wool and rubber.
• Most non-metallic solids are good insulators.
Where and how is electricity generated?
• A power station contains large machines called turbines,
which are turn very quickly.
• Power stations need large amounts of energy to turn the
turbines. The spinning turbine causes large magnets to
turn within wire coils( these are the generators).
• The moving magnets within the coil of wire causes the
electrons to move within the coil of wire.
• Electricity can be generated most anywhere on the land,
underwater, in the sky
and in outer space.
3 other ways
Three other ways to generate electricity can be.
1. Solar energy.
2. Wind energy
3. Magnetic energy. Uses magnetic force to induce perpetual
motion by propelling itself generating electricity.
Bibliography
• http://en.wikipedia.org/wiki/Lava_lamp
• http://answers.yahoo.com/question/index?qid=20090928021649AAdM4x
Q
• http://www.ehow.com/list_5954710_materials-good-insulators-scienceproject_.html
• http://hyperphysics.phy-astr.gsu.edu/hbase/electric/conins.html
• http://www.solarschools.net/resources/stuff/how_electricity_is_made.as
px
• http://parveez.hubpages.com/hub/TOP-3-METHODS-TO-GENERATEELECTRICITY