Electricity Chapter 11 Glossary Terms

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Agamjyot642
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286726
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Electricity Chapter 11 Glossary Terms
Updated:
2014-10-23 21:55:50
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Electricity
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Ms Day Chapter 11
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  1. Electric Circuit
    • Def: A electric circuit is a path in which electrons travel.
    •  
    • - There are two types of circuits a Series circuit and a Parallel circuit  
    •        
    •             
  2. Voltaic Cell
    Def: A source of energy which generates an electric current with chemical reactions involving two different metals separated by a conductor.

    • Related Terms: 
    • - dry cell, wet cell, primary cell,secondary cell, fuel cell, solar cell
  3. Battery
    Def: Two or more cells connected together

               
  4. Electrode
    Def: A metal terminal in a cell or a battery (one of the two)

    • Related Terms:
    • - Electrolyte
  5. Electrolyte
    Def: A paste or solution that has the ability to conduct charges.

    • Related Terms:
    • - All cells
  6. Dry Cell
    Def: A cell in which an electrolyte made of paste can be found.

  7. Wet Cell
    Def: A cell in which a liquid electrolyte can be found.
  8. Primary Cell
    Def: A cell that can't be used more than once.
  9. Secondary Cell
    Def: A cell that has the ability to recharge and be used multiple times.

  10. Fuel Cell
    Def: A cell that can generate electricity through chemical reactions of fuel that is stored outside the cell.
  11. Solar Cell
    Def: A cell that can convert solar energy into electrical energy.

  12. Terminal
    Def: The points on a cell which must be connected with the circuit to make it work

    - There is the negative terminal and the positive terminal
  13. Switch
    Def: A switch is a conductor that allows you to control whether to complete or break a circuit.

  14. Open Circuit
    Def: A open circuit is a circuit that has a gap or a break causing any device connected to it to stop working.
  15. Electric Current
    Def: The rate of movement of electric charge.

    • Related Terms:
    • - Electrical resistance
  16. Coulomb (C)
    Def: A coulomb is the unit of electric charge.

    -  One coulomb is the quantity of charge that is equal to the charge of 6.25×1018 electrons.
  17. Ampere (A)
    Def: An ampere is the unit of electric current.

    - Electric current is measured using an ammeter
  18. Electrical Resistance
    Def: Electrical resistance stops electric current and converts the electrical energy to other forms of energy.
  19. Resistor
    Def: A resistor is a small device that can restrict the current through a component by a specific amount in a electric circuit.

    - Types of resistors:

  20. Load
    Def: A load is a device that converts and transforms electrical energy into heat, motion, sound, or light.

    E.g. A resistor, light bulb, microwave, fridge.
  21. Potential Difference (voltage)
    Def: The potential difference is the amount of work done per coulomb of charge which moves between the terminals of the cell.

    • - A voltmeter is used to find the potential difference
    • - potential difference= difference in potential energy (J)
    •                                                            Charge (C)
  22. Volt
    Def: A volt is the unit used for potential difference and is equivalent to one joule per coulomb.
  23. Circuit Diagram
    Def: A diagram that uses simple symbols in order to represent the components and connections in an electuring circuit.

  24. Series Circuit
    Def: A circuit where there is only one path that electons can flow.
  25. Parallel Circuit
    Def: A circuit where there are more than one path in which electrons can flow.

     
  26. Ohm's Law
    Def: The ratio of potential difference to current is resistance. 

  27. Ohm
    Def: An ohm is the unit for resistance.

  28. Superconductor
    Def: A mamaterial in which electric charge can eas I'll flow with no resistance.
  29. Non-Ohmic
    Def: Something that does not follow ohm's law.
  30. Loads in Series
    Def: Loats that come one after another in a series circuit.

    - The current still stays the same throughout all points in a series circuit because the electrons are still only traveling down one path ( IT = I1 = I2 = I)

    - Although the potential difference ends up splitting up because the energy has to be shared by all loads ( VT = V1 + V2 + V3)

    - More loads in series also means a greater resistance, the total resistance is equal to the sum of the resistance
  31. Loads in Parallel
    Def: Loads that are positioned throughout the parallel circuit on different paths.

    -

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