Fireworks
illustrate energy transformation as well as the conservation of momentum.
To project
the explosives up requires conversion of chemical energy to
kinetic energy. The kinetic energy is used to overcome gravity and
is converted to potential energy in the process. During the explosion,
chemical energy is converted to mostly light, heat and
sound. The symmetry the fragments display is a consequence of the conservation
of momentum. The sum of the momenta before and after explosion is
zero.
Gravity makes
the projectiles follow an inverted parabola.
According
to the "Big Bang Model" our universe may be viewed as a remnant of
a spectacular and mysterious firework that took place
about 15 billion years ago.
Physics
Links
Virtual
Phys Lab
The
Standard Model & Beyond
Two-Nucleon
SWEPs.PPT
|
PHYSICS
At
Fall 2025
PHYSICS COURSES
Dr Ponn Maheswaranathan
Phys201/Phys201L
Dr Fatima Amir
Phys211/Phys211L
Phys305
Mr. James Curley
Phys101
Phys253
Our Department offers:
and
Pre-Engineering
Dept
of Chem/Phys/Geol
|
|