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JMSElectricity

Review for 8th grade electricity weeks 1-2

QuestionAnswer
Number of electrons (measured in coloumbs) passing a point at one time - my example included a full shopping cart. Amps
Volts x Amps (how we measure power) Watts
A toaster has lots of resistance, which creates heat. Resistance is also called this. Ohms
Copper wire is an example of this (electrons flow through easily) Conductor
Rubber is an example of this (electrons DO NOT flow through easily) Insulator
The amount of potential difference (push) in a power cell; push, push, push (like the speed of a shopping cart) Volts
A negatively charged particle that orbits the nucleus of an atom Electron
A positively charged particle in the nucleus of an atom Proton
When electrons move you have this Electricity
A particle with no charge Neutron
Two balloons that are negatively charged do this Repel
A negatively charged balloon will pick up paper or crackers with positive charges. This is an example of.. Attraction
Using energy to make something move Mechanical
This converts electrical energy to mechanical energy. You might find one of these in a toy car. Motor
This converts mechanical energy to electrical energy. We use wind, steam, and water to power these. Turbine
Electrical current that moves back and forth. What comes in through the sockets in our house. AC Power
Electrical current that moves in one direction. Batteries and solar cells use this. DC Power
This is a device used on the plugs of many electronic devices to convert the power to a different type of current AC/DC converter
In this type of circuit, electricity can follow multiple paths. Parallel Circuit
In this type of circuit, electricity can only follow one path. Series Circuit
If you remove a battery from a series circuit with two batteries and one bulb, what happens? Light goes out
If you remove a battery from a parallel circuit with two batteries and one bulb, what happens? Light stays on
Increasing the coils on an electromagnet makes it... Stronger
Running electric current through a wire can turn it into a... Magnet
A magnet on a motor does this to the coiled wire with current running through it. Pushes
Created by: mmansour