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Transcript
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
• A piece of iron that
behaves like a
magnet when it is
touching a
permanent magnet
is a temporary
magnet.
Induced
• Induced
magnetism is the
influence of a
permanent
magnet’s magnetic
field on a piece of
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 Dcell 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 incomplete
circuit through
which electricity
will not flow.
An closed circuit is a
complete circuit through
which electricity flows.
Conductor
• A conductor is a
substance,
commonly a metal
such as copper or
aluminum, through
which electricity
will flow.
Insulator
• An insulator is a
material that prevents
the flow of electricity,
commonly plastic,
rubber, glass, or air.
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
• The core is the
material around
which a coil is
wound.
Coil
• A coil is wire
wound repeatedly
around a central
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.