Study

Sci-5 Electricity

  •   0%
  •  0     0     0

  • Extra points! What is the difference between a series circuit and a parallel circuit?
    Checked
  • A material that does NOT allow electricity to pass through is called an __________.
    insulator
  • A ____ represents or stands for something else. We use them in circuit diagrams.
    symbol
  • In a ___ there is only one path for electricity to flow.
    series circuit
  • What is another word for 'a flow, a continuous movement'?
    Current
  • All wires found in lights and sockets in homes are connected in series circuits. True or false?
    False. Lights and sockets are connected in parallel circuits. If one fails, the rest will still work
  • Appliances work only when ___
    when an electric current flows through them
  • What happens in a closed circuit?
    The electric current flows
    The wires melt
    The battery melt
    The electric current stops
  • Small amounts of electricity can be stored in ____.
    batteries
  • Why does a thicker wire make a lightbulb brighter?
    It uses less energy
    It blocks the electricity
    It lets more electric current flow
  • A ___ represents the actual circuit. We use special symbols in it.
    circuit diagram
  • Extra points! Name two electrical conductors and two electrical insulators.
    Checked
  • What do we call this?
    A socket
  • Extra points! What are the four main components of a simple electric circuit?
    Checked
  • Christmas lights are an example of a series circuit. True of false?
    True. If one component fails, the rest after it will not work.
  • True or False: In a parallel circuit, lightbulbs are brighter than in a series circuit.
    True
  • An ___ is a material that does not allow electricity to flow through it.
    insulator
  • A __________ is used to open and close a circuit.
    switch
  • An ___ is the flow of electric particles around a circuit.
    electric current
  • Extra points! What happens when a switch in a circuit is turned off?
    Checked
  • An ___ is an electrical circuit where the flow of current is prevented due to a broken or disconnected electrical connection
    open circuit
  • The flow of electric particles is called __________.
    electric current
  • Extra points! Why do we cover wires with plastic?
    Checked
  • Why do we use metals for wires?
    They are the only material available
    They don’t allow electricity to flow
    They are good conductors of electricity
  • What is needed for an electrical appliance to work?
    Air
    An electric current
    Sound waves
    Water
  • What happens to the brightness of a lightbulb if you use a longer wire?
    It stays the samean
    It gets dimmer
    It gets brighter
  • True or False? Thicker wires allow less electric current to flow.
    False
  • If you add more batteries to a circuit, what happens to the brightness of the lightbulb?
    The lightbulb becomes dimmer
    The lightbulb shines more brightly
    The lightbulb breaks
  • Living things get energy from ____
    food
  • A ___ is a circuit in which there is more than one path for electricity to flow.
    parallel circuit
  • An electrical ___ is the general term for any part of an electric circuit: wires, light bulbs, switches
    component
  • Electrical appliances work when electricity flows through a __________.
    circuit
  • When an object moves closer to a light source, its shadow becomes __________.
    larger
  • In which type of circuit do lightbulbs shine more brightly?
    Series circuit
    Both are the same
    Parallel circuit
  • Household appliances run on ____
    electricity
  • Electricity is a form of ______
    energy
  • Electric particles flow from the positive terminal to the negative terminal of a battery. True or False?
    False.
  • If a material is an electrical ___, it allows electricity to flow through it
    conductor
  • An ___ is the complete path that an electric current travels along
    electric circuit
  • What happens when you add more lightbulbs in the same circuit (in series)?
    Each lightbulb stays the same
    Each lightbulb gets dimmer
    Each lightbulb gets brighter
  • Which of the following is NOT a part of a simple circuit?
    Wire
    Water
    Battery
    Lightbulb
  • What do we call this?
    A plug
  • Which of these needs electricity to make it work? A TV, a pencil, a spade, a balloon.
    A TV
  • A ___  is an electrical circuit that has a complete path for current to flow without interruption.
    closed circuit
  • In a longer wire, why does the lightbulb become dimmer?
    The wire melts
    The battery stops working
    More energy is used up before reaching the lightbulb
  • In a __________ circuit, if one bulb goes out, all the other bulbs stop working.
    series