Why study physics?
For two reasons:
1. Physics is one of the most fundamental of the
sciences.
a.
Scientists of all majors make use of the ideas of physics.
Chemists
study the structure of molecules
Paleontologists
reconstruct how dinosaurs walked”
b.
The principles of physics play an essential role in our daily life.
How
human activities affect the atmosphere and oceans
Search
for alternative sources of energy”
c.
Physics is also the foundation of all engineering and technology.
No engineer could design
any kind of practical devices
a DVD player
a flat screen TV
an interplanetary
spacecraft
without
first understanding the basic laws of physics
2. The study of physics is an adventure.
It
is challenging
Sometimes
frustrating
Occasionally
painful
Often
rewarding and satisfying
Our physical world has been built by scientific giants
Galileo,
Newton, Maxwell and Einstein”..
Questions:
Why the sky is
blue?
How radio can
travel through empty space?
How a satellite
stays in orbit?