The following settings are available:
#
|
Name
|
Allowed Values
|
Comments
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1.
|
Ball
Size
|
S
|
Small
|
M
|
Medium
|
L
|
Large
|
Note that, in the
underlying physical model behind the size we have the mass which is, in this
case, proportional to ball’s squared radius (2D).
|
2.
|
Random
number of balls
|
ON
|
Random number of balls will
be used every time the application is launched
|
OFF
|
Use the underlying slider
to select desired number of balls.
|
Note that, maximum number
of ball varies depending on the selected Ball Size.
|
3.
|
Gravitation
|
ON
|
iPad’s embedded
accelerometer provides information about acceleration in three independent directions
X/Y/Z.
|
OFF
|
Accelerometer is ignored.
|
4.
|
Elastic
collisions
|
ON
|
Balls are bouncing
elastically without losing their kinetic energy.
|
OFF
|
Balls are not bouncing elastically.
Each time the collision encounters there occurs also a loss of kinetic energy. The
kinetic energy is not conserved.
|
Use underlying slider to
select desired Coefficient of Restitution (bounciness)
|
5.
|
Draw
Vectors
|
ON
|
Vectors are drawn:
Velocity: Red, Momentum: Green, Acceleration: Blue
|
Note that, Velocity and
Momentum are sharing the same direction and sense.
|
OFF
|
No vectors are drawn.
|
6. | Background color | ON | Background color smoothly changes. | OFF | Background stays black. |
|
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