Image of Speed
This animation shows the position of a moving ladybug at different times.
You read out the time and the position and calculate the
speed.
|
Force Diagram
Taking the wagon as an isolated system, you identify
the forces acting on the wagon. The interactive movie allows you to find out the net force.
|
A Thrown Wrench
Center of mass is the point where the weight
acts. A wrench has an irregular shape and its center of mass isn't at
the geometric center.
|
Simultaneity
A motion may be viewed rather differently from different reference systems.
Simultaneity becomes relative in Einstein's theory.
|
Motion
Is Relative
All motions are viewed relative to other objects. You get a particular picture of
motion if you choose a certain reference system.
|
Standing
Waves
Superposition of two traveling waves may lead to standing waves, in which
nodes and antinodes appear.
|
A
Concave Mirror
This interactive animation summarizes various images associated different locations
of an object. Click a candle to see its image.
|
2-Slit
Experiment
A gun shoots indestructible bullets or electrons at two narrow slits. Fundamentally
different distribution patterns are formed.
|