Term
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Definition
| property that causes charged particles to attract or repel |
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Term
| What are the two electric charges a particle can have? |
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Definition
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Term
| What causes an electric charge? |
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Definition
| the gain or loss of electrons |
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Term
| Two positive charges will _________ each other. |
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Definition
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Term
| Two negative charges will _________ each other. |
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Definition
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Term
| A positive and a negative charge will __________ each other. |
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Definition
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Term
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Definition
| force of attraction or repulsion between two charge atoms |
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Term
| Name two things that affect the strength of an electric force between two objects: |
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Definition
| net charge of the objects AND distance betweent the two objects |
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Term
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Definition
| affect an electric charge has on other charges around it |
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Term
| Name two things that affect the strength of an electric field. |
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Definition
| amount of charge of the field and the distance from the charge |
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Term
| Name the three ways charge can be transfered: |
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Definition
| friction, contact, and induction |
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Term
| Which form of charge transfer can be done without touching the objects? |
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Definition
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Term
| Which form of charge transfer is due to two objects rubbing against each other? |
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Definition
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Term
| How does static in your laundry form? |
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Definition
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Term
| What is lightning is an example of _____. |
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Definition
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Term
| What is static discharge? |
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Definition
| when a pathway to discharge an electric charge forms suddenly |
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Term
| The law of conservation of charge states that the amount of charge before a transfer must ______________. |
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Definition
| equal the amount of charge after the transfer. |
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Term
| What flows in an electric current? |
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Definition
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Term
| What are the two types of current? |
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Definition
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Term
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Definition
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Term
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Definition
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Term
| What type of current is found in your wall outlet? |
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Definition
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Term
| What type of current is found in a battery operated device>? |
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Definition
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Term
| Something that electric charge does NOT flow through easily is a |
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Definition
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Term
| Give two examples of materials that make good electrical insulators |
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Definition
| glass, wood, rubber, plastic, air |
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Term
| Give two examples of materials that make good electrical conductors |
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Definition
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Term
| A material that DOES transfer electric charge well is called a |
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Definition
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Term
| What is electrical resistance? |
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Definition
| the opposition (not allowing) flow of electrical charge |
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Term
| What is the unit of resistance |
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Definition
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Term
| what is the unit of current? |
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Definition
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Term
| What is the unit of potential difference? |
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Definition
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Term
| Name three things that affect a materials resistance |
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Definition
1. thickness of material
2. length of material (such as a wire)
3. temperature of the material |
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Term
| What is a superconductor? |
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Definition
| a material that has almost zero resistance at cold temperatures |
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Term
| What is potential difference? |
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Definition
| the difference in potential energy in two places on the same circuit |
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Term
| What do you use to measure potential difference? |
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Definition
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Term
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Definition
| batteries, generators, and solar cells |
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Term
| In Ohm's Law: V = I x R if you increase V what happens to R? |
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Definition
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Term
| In Ohm's Law: V = I x R if you increase I what happens to R? |
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Definition
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Term
| What do all of the variable stand for in Ohm's law? V= I x R? |
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Definition
V= voltage
I = current/amps
R = Ohms/resistance |
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Term
| What are circuit diagrams? |
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Definition
| Diagrams that draw or show all of the parts of a complete circuit using symbols |
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Term
| Know the symbols for the electric circuit diagrams of: ammeter voltmeter wire bulb resistance switch battery |
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Definition
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Term
[image]What kind of circuit is this diagram? |
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Definition
| Series circuit with 2 bulbs, and a battery |
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Term
| What kind of circuit is in this diagram?[image] |
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Definition
| Parallel Circuit with two bulbs and a battery. |
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Term
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Definition
| the rate at which electrical energy is converted into a different energy (light, heat) |
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Term
| What is the unit used to measure electrical power? |
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Definition
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Term
| Name three things that are used in electrical safety: |
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Definition
fuses circuit breakers GFI -ground fault interupted outlets |
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Term
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Definition
| transfer of excess charge through a conductor |
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