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Electricity

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  • When a component uses less than one or two volts for operation it is _________
    electronic
  • What is resistance?
    opposition to current
  • What is the unit measurement of electrical power?
    watt
  • If a conductor has excess electrons it has a __________ charged.
    Negative
    Positive
    Half
    Full
  • What is current?
    Electrical flow
  • Magnetism is an atomic _________ that can attract or repel ferrous substances through space, air, or solid matter
    Force
  • Define Ohm's Law
    The relationship between voltage, current, and resistance.
  • A substance that allows the flow of free electrons.
    Conductor
  • If a circuit has 12 volts and 3 Ohms how many amps of current does it have?
    4 amps
  • Name the 3 parts of a simple circuit.
    Power source, conductor, and Load
  • Protons are ___________ charge particles.
    positively
  • A substance that resists or stops the flow of electrons.
    Insulator
  • What is a circuit?
    a closed electrical path for current
  • What is a frame-ground circuit?
    uses the metal structure of the vehicle to return electricity to power source
  • Like charges ______ each other
    Repel
  • If resistance goes up goes up, current goes __________.
    down
  • Electricity has 3 basic functions to produce ________, _________, and _________.
    light, heat, and motion
  • True or False? A frame- ground circuit and a one wire circuit are the same.
    True
  • If a circuit has a current of 3 amps and a resistance of 5 ohms, how much voltage does it have?
    15 volts
  • Electrons are ______________ charged particles.
    negatively
  • What is voltage?
    Electrical force
  • A group of one type of atom is a ____________
    matter
    element
    atom
    compound
  • Unlike charges _______ each other
    attract
  • Describe the characteristics of a parallel circuit.
    more than one or multiple paths for current
  • Describe the main characteristics of a series circuit.
    Only one path for current.
  • Anything in the universe that occupies space ad has weight is __________
    matter
    element
    compound
    molecule
  • Define electricity.
    The movement of free electrons
  • If voltage goes up, current goes ___________.
    up
  • Electrical devices can do the job of mechanical devices _________ quickly and efficiently
    less
    even
    same
    more
  • What uses a frame-ground circuit that we used daily?
    vehicles
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