Introduction to physics

This introduction to physics is for anyone with a desire to learn some important basic concepts in physics. Just like mathematics, it is hard to separate physics from the world we are living in. I have created this unit so you can see how to use math to solve problems in physics.

Why you need these introduction to physics lessons

• Are you a student in high school and you need a solid introduction to help you tackle the jargon you hear from your teacher?


• Are you in college and you feel like you are falling behind? Get back on tract here before it is too late. 

• Are you just curious about physics? You have never learned physics before and you need some good guidelines to get started without the exorbitant cost of taking a course.

A little history

Everything started with the study of natural philosophy. Natural philosophy used to be the study of unanswered questions about nature. As more and more answers are found, natural philosophy became science. 

The physical sciences deal with nonliving things and branch into areas such as physics, geology, astronomy, and chemistry.

Introduction to physics or rocket science course?

Goals

We will of course study physics here and introduce the most important topics to include

Mechanics :  linear motion, Newton's laws, circular motion, etc.

Properties of matter : liquid , solid, or gas

Electricity and magnetism : electric current, circuits, tec.

What you get on my site is an introduction. You will not be ready to put together a rocket. However, I will help you understand all the subtleties that will prepare you for more challenging courses in physics.

No serious study can be done without a good understanding of mathematics.

We will not try to cloud physics with math, but math will help understand physics.  

The scientific method

1. Identify a problem

2. Make an educated guess about the answer. This is called hypothesis.

3. Perform experiments to test your hypothesis

4. Formulate a general rule

When the last step in the scientific method is tested over and over again and it is still not contracted, it is then known as a law or principle.

Sometimes, scientists find new evidence that contradicts a law or principle. In this case, the previously accepted lay or principle must be rejected until another one is found. 

The introduction to physics you get in this site will explain laws and principles that are accepted as of today.

Physics is a progressive science as scientists change their mind all the time, so don't be shock when a change is made.  it is a good thing when they change their minds and find a better solution to explain our physical world.