What’s
a
Watt?

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Energy
Use

                                               

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What's A Watt Handout (Sciencenter)

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What's A Watt Handout (Sciencenter)

  1. 1. What’s
a
Watt?
 Home
Energy
Use
 
 Power
is
the
rate
at
which
something
gains
or
loses
energy.

We
measure
power
in
 watts,
or
how
many
joules
of
work
can
be
done
in
a
second.

Different
appliances
 around
your
house
require
different
amounts
of
power
to
operate,
complete
this
 activity
to
see
how
some
common
household
appliances
hold
up.


 
 Instructions
 1. Sort
the
appliances
according
to
how
many
watts
of
power
you
think
they
 need
to
operate.

Then
select
the
ones
that
you
think
are
still
using
a
small
 amount
of
power
even
when
they
are
turned
off
(this
is
called
stand
by,
or
 vampire
power.)
 
 2. Turn
over
the
appliance
cards
to
see
if
your
order
is
correct!

Look
for
the
 vampire
icon
to
see
if
the
appliance
is
a
victim
of
vampire
power.

 
 Climate
Connection
 The
majority
of
electricity
that
we
use
to
 Vampire,
or
standby
power
is
the
 power
our
homes
comes
from
burning
fossil
 power
that
appliances
use
when
 fuels
such
as
coal.

This
process
releases
high
 they
are
off
mode
but
still
 amounts
of
carbon
dioxide,
a
greenhouse
gas
 plugged
in,
this
is
the
small
 amount
of
power
it
takes
to
run
 that
contributes
to
climate
change.

The
less
 the
clock
on
your
microwave
or
 energy
that
you
use
in
your
home
the
less
 allow
your
TV
to
receive
a
signal
 carbon
dioxide
will
be
emitted
into
the
 from
a
remote
control.
 atmosphere.



 
 
 
 
 If
you
are
interested
in
knowing
how
 
 much
energy
is
used
by
an
appliance
in
 
 your
home
consider
purchasing
a
Kill‐a‐ 
 Watt,
a
simple
device
that
measures
how
 much
power
your
appliances
use
 
 
 


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