Chapter 11 glossary terms gr. 9 science Ms Day

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  1. Electric Circuit
    • A closed path where electrons that are power by an energy source can flow.
    • ex. any sort of electrically powered appliance needs an electrical circuit to function.
    • Related terms-Circuit diagram
  2. Voltaic Cell
    • A source of energy that produces electrical current by chemical reactions involving two different metals or metal compounds , separated by a solution that is a conductor.
    • Related terms-Battery, wet cell, dry cell
  3. Battery
    • A connection of at least two cells.
    • ex. Duracell makes batteries
    • related terms- voltaic cell, wet cell, dry cell, electrode
  4. Electrode
    • One of the two metal terminals in a cell or battery.
    • ex. A cell has negative and positive electrodes
    • Related terms- Electrolyte, Cell
  5. Dry Cell
    • A cell that contains an electrode that is a paste.
    • Related terms- Wet cell, Cell
  6. Wet cell
    • A cell that contains a liquid electrode.
    • Related terms- Dry cell, Cell
  7. Primary Cell
    • A cell that can only be used once.
    • ex. Non-rechargeable batteries are primary cells.
    • related terms- Secondary cell
  8. Secondary Cell
    • A cell that can be recharged and used more thn once.
    • ex. Cells used in controllers can often be recharged and used again
    • Related terms- Primary cell, fuel cell, solar cell
  9. Fuel Cell
    • A cell that generates electricity through chemical reactions of fuel that is stored outside of the cell
    • Related terms- Solar cell, Secondary cell, cell
  10. Solar Cell
    • A cell that converts the suns sunlight into electrical energy
    • ex. A solar panel
    • Related terms- Secondary cell, cell
  11. Terminal
    • A position on a cell that must be connected to other components in order to form a circuit.
    • ex. A cell has a negative and positive terminal.
  12. Switch
    • A device that can complete or break a circuit, completing it or not completing it. 
    • ex. A power button on a flashlight is a switch.
    • Related terms- Open circuit, Closed circuit
  13. Open Circuit
    • A circuit that contains a gap or break. Nothing works in an open circuit.
    • ex. When a light is turned off, its an open circuit.
    • Related terms- Electric circuit, Closed circuit
  14. Electric Current
    • A measure of the amount of charged particles pass by a certain spot in an electric circuit each second
    • ex. Electric current passes through a closed circuit
    • Related terms- Electric circuit
  15. Coulomb (C)
    • A quantity of charge that is equal to 6.25x10 to the power of 18 electrons
    • ex. One coulomb of charge passes by a circuit per second
  16. Ampere (A)
    • The unit of electric charge equivalent to one coulomb per second.
    • ex. One ampere of charge passes by a circuit
  17. Electrical Resistance
    • The property of a substance that hinders electric current, and then converts  this electrical energy into other forms of energy.
    • ex. An electrical stove has a high electrical resistance
    • Related terms- Resistor, load
  18. Resistor
    • A device that is used in an electric circuit  to decrease  the current through a component by a specific amount
    • ex. A stove is a resistor
    • Related terms- electrical resistance, load
  19. Load
    • A device, usually a resistor, that transforms electrical energy into heat, motion sound or light
    • ex. A stove is a load
    • Related terms- Resistor, Electrical resistance
  20. Potential Difference (voltage)
    • The difference in electrical energy between two points in a circuit.
    • ex. This battery has a potential difference of 5V
    • Related terms-Volt
  21. Volt
    • The unit used for potential difference, equal to one joule (J) per coulomb (C).
    • ex. The potential difference of of this battery is 5V
    • Related terms-Potential difference
  22. Circuit Diagram
    • A diagram that uses standardized symbols to represent the components in an electric circuit and their connections o each other.
    • Related terms- Series circuit, Parallel circuit, electric circuit
  23. Series Circuit
    • A circuit where there is only one path in which the electrons can flow through.
    • ex. This circuit is series, as there is only one path in which the electrons can flow through.
    • Related terms-parallel circuit, circuit diagram, electric circuit
  24. Parallel Circuit
    • A circuit where there is more than one path n which the electrons can flow through.
    • ex. This circuit is a parallel circuit because there is more than one path in which the electrons can flow down.
    • Related Terms- Series circuit, Circuit diagram, electric circuit
  25. Ohm's Law
    • The ratio of potential difference to current is a constant called resistance.
    • Related terms-Ohms
  26. Superconductor
    • A material where there is no resistance. The electric charge can flow with no resistance.
    • ex. very cold mercury is a superconductor
    • related terms-Resistance, Resistor
  27. Non-ohmic
    • Does not follow ohms law.
    • Related terms- Ohm's law, Ohm
  28. Loads in Series
    • Loads on a series circuit.
    • Related terms- Loads in parallel, Series circuit
  29. Loads in Parallel
    • Loads on a parallel circuit.
    • Related terms- Loads in series, parallel circuit
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Chapter 11 glossary terms gr. 9 science Ms Day
2014-10-24 03:23:15
glossary terms

Glossary terms for chapter 11 of gr. 9 science
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