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JMSElectricity
Review for 8th grade electricity weeks 1-2
| Question | Answer |
|---|---|
| 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
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