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Refine your understanding of the language of
kinematics as you match 11 verbal descriptions of motion
to 11 on-screen animations. Once you've completed the
matching process, check your answers and receive
immediate feedback. Answers can be revised until you have
perfected your understanding.

Refine your understanding of the graphical
descriptions of motion as you match 11 position-time and
velocity-time graphs to 11 on-screen animations. Once
you've completed the matching process, check your answers
and receive immediate feedback. Answers can be revised
until you have perfected your understanding.

Practice your skill at interpretting graphs. Ten
different velocity-time graphs are presented; your goal
is to enter motion parameters which will result in a
motion which matches the graph.

Analyze the motion of a two-stage rocket and relate
the motion to the features of a position-time and
velocity-time graphs. When finished, take a quiz to check
your understanding. Accompanied by an activity
sheet.

Practice your skill at constructing free-body diagrams
for a given physical situation. Twelve different
descriptions of a physical situation are presented; your
goal is to determine the type and relative magnitude of
the forces acting upon the described object.

Explore concepts of relative velocity by investigating
the motion of a boat across a river in the presence of a
current. Accompanied by an activity
sheet.

Investigate the nature of a projectile using this
projectile simulator. Alter the launch height, launch
speed and launch angle and explore the effect of such
alterations on the time of flight, range, and overall
trajectory. Accompanied by an activity
sheet.

Practice your skill at solving horizontally-launched
projectile problems by seeing if you can hit a target.
Three types of problems are presented with randomly
generated numbers. Accompanied by an activity
sheet and a data
sheet.

Test your understanding of the relationship between
force and motion as you attempt to guide a car around an
oval race track in the least number of moves. Watch your
speed on the curves and you'll be a winner.

Analyze the motion of an object in a circle at
constant speed and investigate the directional nature of
velocity and acceleration and the effect of speed and
radius upon the acceleration. Accompanied by an activity
sheet.

Learn about the concept of universal gravitation as
you explore the variables which effect the force of
gravity between an object and a planet. Accompanied by an
activity sheet.

Investigate the elliptical motion of a satellite
orbitting a central body and the nature of the velocity
and force vectors. Alter the eccentricity of the orbit
and view the effect upon the shape of the ellipse.
Accompanied by an activity
sheet.

Investigate Einstein's concept of time dilation. A
pulse of light reflects off two mirrors in a spaceship.
Set the speed of the spaceship and watch from Earth as
the spaceship zooms by. Soon you will recognize why our
conception of time breaks down in a relativistic
world.

Investigate Einstein's concept of length contraction.
A spaceship carrying a billboard zooms by Earth. Change
the speed of the spaceship and watch the dimensions of
the billboard change as viewed by observers on Earth.
Soon you will recognize why our conception of length
breaks down in a relativistic world.

Explore the standing wave patterns for a stringed
instruments. Alter the length of the string, the
amplitude of the wave pattern and the harmonic number.
View the length-wavelength-frequency relationships.

Investigate the wave patterns associated with beats by
combining two waves of similar frequency. Observe the
wave patterns for the individual waves and observe the
resulting beat pattern which is formed.

A set of three lights shine on a person and cast
shadows of the person on a screen in the background. Turn
the various lights on and off and observe how the colors
of the shadows change.

It's your time to order uniforms for the school's
football teams. There is one difficulty: the company
which you will order from prefers to receive the order in
terms of the three primary colors of paints which will be
applied to different parts of the uniform. Experiment
with the effect of different paint colors on the
appearance of the various parts of the uniform.
Accompanied by an activity
sheet.

Perform Thomas Young's famous experiment using this
simulated activity. Make measurements for a projected
two-point source light interference pattern in order to
determine the wavelength of light which created the
pattern.. Accompanied by an activity
sheet.

Use a lifeguard-swimmer analogy to explore the
relationship between the speed of a wave in two different
media and the angles of incidence and refraction for the
wave as it crosses the boundary between the media.
Accompanied by an activity
sheet.

Investigate the reflection and refraction of light at
a boundary. Alter the indices of refraction for the two
media and change the angle of incidence. Explore Snell's
law of refraction and total internal reflection.

Investigate how the image characteristics for a lens
depend upon the object's distance from the lens. Drag the
object to different locations and view the appearance of
the image. Change the focal length, the object height and
show three principal rays.