VIEWS: 5 PAGES: 13 POSTED ON: 6/29/2012
Static Electricity AC & DC Currents Series & Parallel Circuits Ohm’s Law Static Electricity When something has a build up of electrons creating an imbalance in charges resulting negative static charge. For extra understanding click here attract repel Opposites______. Like charges ______. Examples: carpet hair balloons doorknob lightning AC & DC Currents Current = the flow or movement of electrons. Definition The source Only goes Both ways (+ to -) AC vs DC Sort out the devices into their correct power supply 8. 1. 4. 6. 2. 9. 5. 7. 3. Circuits Electricity travels from positive to negative charges. Opposites attract each other. When electricity is run through a wire from a source and back again it is called a circuit. + - Series Circuits They all go out because the circuit is broken. + - What happens if this one goes out? Parallel Circuit The others stay lit because the circuit isn’t broken. + - What happens if this one goes out? Ohm’s Law The relationship between current, resistance, and voltage. Fill in the chart What is it? Measured by Flow of electrons AMPS Slows flow of electricity Ohm’s Electric “push” Volts Ohm’s Law cont. V =cr The current is 25 amps and the wire resistance is 5 ohm’s what is the Voltage needed to run the motor? V= 25 x 5 V= 125 volts Electromagnets A magnet can be temporarily made by running electricity through a coil of wire wrapped around a piece of iron. Everyday Electromagnets Pick the objects below that have an electromagnetic motor? Fan Motorcycle Washer & Dryer Drill Car Lawnmower Doorbell Clock Pencil Sharpener Moving Magnets make Electricity When a Magnet is spun inside another magnet electricity is generated. Understanding Electricity?