High School Physics/A brief look

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This section is meant to briefly introduce each topic to you, what are we going to do under each topic and its application in real life. The purpose is to excite you.

Contents

[edit] Motion

Things move. From baseball to comet, from F1 race car to fall feather. The physicist dream is to know exactly how these things move. Where is it going to be at at a certain time? When is it going to be here? When is it going to be there? Where is the moon at a hundred days and one hour from today?

But things do not simply move from one place to another, translational motion, they also rotate; spinning around their own axis, a spinning wheel, or around other things, moon circling around (orbiting) the earth.

[edit] Thermodynamic

This section will amuse the want-to-be-engineer the most. You will learn how to internal combustion engine (the cool stuff inside the car that make it runs) works, how fridge and air conditioner works, and so forth. Yet, as a spoiler, this will also be the most disappointing section, because this will tell you that perfect machine (100% efficiency) is impossible.

[edit] Fluids

Fun fact: There are more missions that send people into outer space than to Challenger's Deep at Mariana Trench, the deepest part of the ocean, which has only been visited by human once in 1960 with a Bathyscaphe (a type of submarine) named Trieste. They find strange creatures beyond imagination there. Why is it so hard? It is because of the high water pressure at such depth: 100MPa. How bad is that? Well our the air pressure that we experience in daily life is around 101.kPa, that is around one thousand time less. The pressure on the heel of 60kg (120lbs) person wearing spike shoe is 12MPa. That will give you a good idea.

[edit] Electric Current