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UNIT 6 Review

Quiz by Kimberly Dendy

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22 questions
Show answers
  • Q1
    If someone builds an electric circuit using a battery, a light bulb, paper clip, and cooper wire, would it work if the circuit doesn't make a complete loop?
    yes
    No, because he needs an out let
    no, because a circuit has to be a complete loop
    maybe
    30s
  • Q2
    If Jessica replaces a paper clip with a wooden stick, would the circuit still work?
    No, the wood is an insulator (doesn't move electrons)
    Yes, the wood is a generator
    No, the wood is a battery
    No, the wood is a conductor (moves electrons)
    30s
  • Q3
    I have an electric circuit with three light bulbs (A, B, C) , a switch, and a battery. What happens remove bulb A.
    It will blow up!
    The switch will break
    None of the other bulbs will work
    Everything will still work
    30s
  • Q4
    What happens if you have an electric circuit with three bulbs ( Bulb A, Bulb B, Bulb C). What happens if Bulb B burns out? What happens to Bulb A and C?
    They will blow up.
    They will not stay lit because Bulb B is out.
    They will still stay lit because the electricity still runs through Bulb B.
    Bulb C will light up.
    30s
  • Q5
    In a light bulb, such as the one shown below, the filament glows brightly when the switch is turned on
    light energy into electrical energy
    potential energy into thermal energy and light energy
    chemical energy into light energy
    electrical energy into thermal energy and light energy
    30s
  • Q6
    Some materials conduct electricity, but others do not. Which of these materials is an electrical conductor?
    plastic ruler
    toothpick
    rubber band
    nail
    30s
  • Q7
    There are two main types of electric circuits: series circuits and parallel circuits. How are series circuits different from parallel circuits?
    A series circuit uses electrical energy from a battery. A parallel circuit uses current from an outlet or generator.
    In a series circuit, current flows in one direction. In a parallel circuit, current flows in both directions.
    A series circuit provides current to one or two devices. A parallel circuit provides current to many devices.
    In a series circuit, there is only one possible path that current can follow. In a parallel circuit, there are two or more possible paths.
    30s
  • Q8
    Many homes use electric ovens to cook food. What energy transformation occurs in an electric oven?
    electrical energy into thermal energy
    electrical energy into energy of motion
    thermal energy into light energy
    thermal energy into electrical energy
    30s
  • Q9
    Many devices in your home convert electrical energy into other forms of energy. Which of these devices converts electrical energy into motion?
    light bulb
    door buzzer
    water faucet
    power saw
    30s
  • Q10
    Sometimes calculators are solar powered with a light-sensitive panel. The calculator is taking solar energy and turning it into what kind of energy?
    light energy
    thermal energy
    motion
    electric current
    30s
  • Q11
    When you walk into a dark room, you flip a switch on the wall and the lights come on. What is the purpose of the wall switch?
    It produces the electric current that the lights use.
    It carries electric current from the wall to the lights on the ceiling.
    It closes a circuit so that electric current can flow through the lights.
    It transforms electrical energy into light energy.
    30s
  • Q12
    What is the purpose of a circuit breaker?
    to shut off the current if a circuit is overloaded
    to match the amount of current to what is needed
    to split electric current into different circuits
    no purpose
    30s
  • Q13
    . There is a limit to the amount of electric current that can be carried safely by an electric circuit. If too many appliances are attached to a particular circuit, the amount of current can be higher than the safe level. What happens if there is too much current in the circuit?
    Wires in the circuit become hot.
    Electrons stop moving in the wires.
    Some of the appliances stop working.
    Part of the current flows backward toward the outlet
    30s
  • Q14
    All electric circuits need certain components in order to work. Which of the following mustbe part of an electric circuit?
    light bulb or buzzer
    battery or other source of current
    switch or circuit breaker
    copper wires
    30s
  • Q15
    Which of these elements is common to all electrical circuits?
    wall outlet
    conductor
    battery
    insulator
    30s

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