2. What Is
Electricity?
• A form of
energy made
up of charges
that can
produce light,
heat, or motion
3. Kinds of Electricity
Static
• An electric charge
that collects or
builds up on the
surface of an object
• Examples
– Shocking
– Lightening
Current
• The flow of electric
charges carried
through a material
such as wire or other
conductors
• Examples
– Power lines
– Computers
– Appliances
4. Conductors and
Insulators
Conductors
• Any material that
allows electric
charges to move
through it
• Examples:
– Metals (esp.
copper)
– Your body
– Electric wires
Insulators
• Materials that do
not allow
electric charges
to flow freely
through them
• Examples:
– Wood
– Glass
– Rubber
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26. Lightning
• kills more
than 60
people
• injures more
than 400
people a year
in the US
• one mile every
five seconds
• about 50,000 F
28. Do Now
Write a paragraph
about the cartoon. Tell
what he is trying to do.
Will it work and why?
What do you think will
happen? Use the
following words, static
electricity, lightning,
electrons, positive and
negative charges.
29.
30.
31. Electricity
Know what it is
Know the different
kinds
Know about the
different kinds of
circuits
Know about
conductors and
insulators
