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This
lesson
points
out
that
the
motion
of
objects
(velocity
or
acceleration)
is
almost
never
constant,
and
applies
this
idea
to
the
motion
of
a
person
walking.
The
discussion
covers
the
energy
transfers
involved
in
walking
and
in
some
other
forms
of
human-powered
transportation
(crutches,
bicycle,
wheelchair),
and
the
velocity
and
acceleration
of
an
object
that
is
moving
in
one
dimension.
The
lesson
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This
lesson
builds
upon
the
previous
two
(Newton's
Second
Law
and
the
First
Law
of
Thermodynamics)
by
explaining
that
conservation
of
energy
is
not
perfectly
observed,
in
that
energy
is
lost
as
it
is
transferred
from
kinetic
to
potential,
and
vice-versa.
Likewise,
momentum
is
not
conserved
during
collisions,
as
they
are
neither
perfectly
elastic
or
perfectly
inelastic.
The
discussion
covers
the
Second
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This resource references :
The First Law of Thermodynamics (title provided or enhanced by cataloger) -
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This
lesson
introduces
students
to
Sir
Isaac
Newton's
Second
Law
of
Motion.
Topics
include
the
two
ways
to
study
the
dynamics
of
a
system
in
which
there
is
motion,
a
brief
description
of
Newton's
work
in
studying
and
measuring
the
motion
of
objects,
and
a
summary
of
his
three
laws
of
motion.
The
lesson
includes
an
activity
in
which
students
test
Newton's
Second
Law
by
measuring
the
acceleration
of
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This
lesson
builds
upon
the
previous
one
(Newton's
Second
Law)
by
introducing
students
to
kinetic
and
potential
energy.
Topics
include
a
brief
description
of
these
two
forms
of
energy,
a
discussion
of
gravity
as
a
form
of
potential
energy,
and
a
discussion
of
the
First
Law
of
Thermodynamics
in
the
context
of
energy
transfer.
The
lesson
includes
an
activity
in
which
students
test
the
First
Law
of
Thermodynamics
...
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This
lesson
introduces
students
to
the
basics
of
nuclear
energy
production.
Topics
include
radioisotope
thermoelectric
generators,
natural
decay
of
radioactive
isotopes,
and
chain
reactions.
There
is
also
a
discussion
of
how
to
control
a
chain
reaction
and
some
concepts
of
reactor
design.
The
lesson
includes
an
activity
in
which
students
operate
an
online
simulation
of
a
nuclear
power
plant,
attempting
...
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This
lesson
provides
an
overview
of
the
sources
and
potential
effects
of
radiation
exposure.
Topics
include
the
history
of
the
United
States'
domestic
nuclear
power
program,
the
concept
of
ionizing
radiation,
and
how
radiation
dosage
is
measured.
There
is
also
discussion
of
what
constitutes
a
lethal
dose
of
radiation
and
potential
sources
of
exposure.
The
lesson
includes
an
activity
in
which
students
...
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This resource requires :
Radiation Exposure Calculator -
http:/
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The
amount
of
energy
used
in
a
home
is
greatly
impacted
by
the
type
of
materials
used
in
constructing
the
home.
In
particular,
the
thermal
conductivity
of
the
materials
will
affect
how
quickly
heat
is
allowed
to
enter
or
leave
the
home.
In
this
hands-on
activity,
students
will
measure
the
ability
of
various
materials
to
resist
heat
flow
(R-factor)
by
placing
a
light
bulb
inside
boxes
made
of
the
materials
...
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This
lesson
provides
an
overview
of
basic
atomic
structure
and
the
concept
of
radioactive
decay.
Topics
include
the
particles
that
make
up
an
atom,
binding
forces,
and
the
concept
of
isotopes.
There
is
also
discussion
of
decay
methods
and
half-life
versus
activity.
The
lesson
includes
an
activity
in
which
students
use
online
applets
to
investigate
the
half-life
and
activity
of
selected
isotopes
and
...
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Misconceptions:
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This
lesson
provides
an
introduction
to
the
use
of
the
sun's
energy.
Topics
include
the
history
of
solar
energy
usage
and
its
more
recent
adaptations.
There
is
also
discussion
of
how
the
sun
produces
and
radiates
energy,
what
happens
when
it
reaches
Earth,
types
of
solar
systems,
and
the
most
common
use
of
solar
energy
(heating).
The
lesson
includes
an
activity
in
which
students
investigate
the
effects
...
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This
lesson
introduces
students
to
the
uses
of
wind
energy.
Topics
include
a
history
of
wind
usage
(grinding
grain,
pumping
water,
transportation),
including
the
development
of
wind
power
in
the
United
States
and
its
more
recent
adaptations
for
producing
electricity.
There
is
also
discussion
of
the
physics
behind
the
operation
of
a
windmill
and
what
drives
the
wind
patterns
in
Earth's
atmosphere.
...
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