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Science Elect. unit1
Liam
| Question | Answer |
|---|---|
| Electricity | is a form of energy. |
| Forms of Energy | Chemical, Heat, Sound, nuclear, Electric and Light |
| Energy | the ability to make someone or something move or work |
| What does electricity need in order to work | protons and electrons |
| protons | have a positive charge of electricity |
| electrons | have a negative charge of electricity |
| law of electricity | like electrical charges repel or move away from each other (+ and +) (-and-). Different electrical charges attract each other (+and-) |
| Static Electricity | is caused by friction. it is stored electricity. Its release depends on the movement of electrons. |
| How does Static Electricity move | Does not move along a path. It jumps form one object to another and then rests on the object which it lands. |
| Current Electricity | Is caused by electrons moving through a path or wire. |
| Current Electricity Movement | Electrons enter, travel through and pass out of a conducter. Electrons flow from the negative to the positive. |
| Conductor | a material that makes a good path for electricity to flow. |
| Good conductors of electricity | Most Metals |
| Insulators | A material that slows down electron flow or does not allow electrons to pass through it. |
| Some Types of Insulators | Wood, Plastic or glass |
| Circuit | the path through which electrons flow. when electrons can flow from a power source (battery or power company) through a conductor and back again. |
| What are the types of circuits | Series and Parallel |
| Incandescent light bulbs | gives off light when electrons flow through it. |
| The metal wire in an incandescent light bulb is | called the filament, and is heated until it glows and gives off light energy |
| Fluorescent lights | electricity passes through a gas, such as mercury vapor or neon, and produces light. |
| fluorescent type of lights | produce more light and much less heat than a incandescent light. |
| circuit breakers | has a switch that automatically opens when a circuity is overloaded. This protects your home from fire. |
| fuses | used instead of circuit breakers. Has a thin filament or wire. When electron flow reaches to high of a level the filament melts and opens the circuit. |
| Series Circuits | electrons have only one path to follow |
| Parallel Circuits | the electrons have more then one path to follow |
| Switch types | Knife, Toggle, pushbutton |
| Knife Switch | has a moveable blade that opens and closes the circuit |
| Toggle Switch | like a wall switch |
| Pushbutton Switch | used in doorbells |
| Battery | A group of cells that works together to produce electricity by a chemical reaction |
| Alessandro Volta | The inventor of the battery |
| Volt | the strength of the fore measured by a battery |
| Force used for electrons to travel | the forced is produced by the battery. |
Created by:
lin122
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