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Magnets

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					   Magnets
A magnet is an object
that sticks to iron.
          A magnet is an object that sticks to iron.
           Force

A force is a push or a pull.
       Attract           Repel
• When magnets pull • When magnets
  together, we say    push apart, we say
  they attract.       they repel.
    Temporary                 Induced
• A piece of iron that   • Induced
  behaves like a           magnetism is the
  magnet when it is        influence of a
  touching a               permanent
  permanent magnet         magnet’s magnetic
  is a temporary           field on a piece of
  magnet.                  iron, which makes
                           the iron act like a
                           magnet.
                  Graph
• A graph organizes data visually to show a
  relationship between two things.
• The intersection of two lines is the point
  at which they cross.
              Prediction
A prediction is an educated guess based
  on data or previous experience.
   Detector
• A detector is
  something you use to
  gather evidence about
  something you can’t
  see.
                  D-cell
• The D-cell is the source of electricity.
• A battery refers to more than one cell, but
  most people use the words battery and D-
  cell interchangeably.
• An electricity source provides the energy
  to light the bulb.
         Electricity Receiver
• An electricity receiver is a component
  that uses the electricity from the source to
  make something happen.
                    Circuit

• A circuit is a
  pathway for
  the flow of
  electricity.
Components
• D-cells, bulbs,
  and wires are
  circuit
  components.
          Schematic Diagram

• A schematic
  diagram is a
  way to
  represent a
  circuit on a
  piece of
  paper.
                   Filament
• The filament of a bulb is the part that gets hot
  and produces light.
            Circuit Base
• A circuit base holds components needed
  to build a circuit.
            Fahnstock Clip
• A Fahnstock clip or metal clip that
  connects wires in a circuit.
                 Switch
• A Switch is a device used to open and
  close circuits.
  Open Circuit Closed Circuit
• An open circuit is   An closed circuit is a
  an incomplete        complete circuit through
  circuit through      which electricity flows.
  which electricity
  will not flow.
   Conductor                Insulator
• A conductor is a    • An insulator is a
                        material that prevents
  substance,            the flow of electricity,
  commonly a metal      commonly plastic,
  such as copper or     rubber, glass, or air.
  aluminum, through
  which electricity
  will flow.
             Series Circuit
• A circuit with only one pathway for current
  flow is a series circuit.
            Parallel Circuit
• A parallel circuit splits into two or more
  pathways before coming together at the
  battery.
            Electromagnet
• An electromagnet is a coil of wire, usually
  wound around a core of iron steel, which
  produces a magnetic field when electricity
  flows through the wire.
         Core            Coil
• The core is the   • A coil is wire
  material around     wound repeatedly
  which a coil is     around a central
  wound.              core
                 Technology
• Technology
  applies the results
  of scientific
  research.
                  Telegraph
• A telegraph is a device for sending coded
  messages by signals produced by closing and
  opening an electric circuit.
• A telegraph key is a switch that completes the
  circuit in a telegraph system.
• The gap is the space between the steel strip
  and the electromagnet.
• A code is a set of signals that represents letters
  or words for sending messages.
            Long-Distance
• Long-Distance refers to something that is
  far away.

				
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