Course Description
Physics is a branch of science that studies matter and its motion as well as how it interacts with energy and forces. Physics is a huge subject. There are many branches of physics including electricity, astronomy, motion, waves, sound, and light. Physics studies the smallest elementary particles and atoms as well as the largest stars and the universe.
Scientists who are experts in physics are called physicists. Physicists use the scientific method to test hypotheses and develop scientific laws. Some of the most famous scientists in history are considered physicists such as Isaac Newton and Albert Einstein.
Physics Subjects
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Motion
Scalars and Vectors
Vector Math
Mass and Weight
Force
Speed and Velocity
Acceleration
Gravity
Friction
Laws of Motion
Simple Machines
Glossary of Motion Terms
Electricity
Intro to Electricity
Electricity Basics
Conductors and Insulators
Electric Current
Electric Circuits
Ohm's Law
Resistors, Capacitors, and Inductors
Resistors in Series and Parallel
Digital Electronics
Electronic Communications
Uses of Electricity
Electricity in Nature
Static Electricity
Magnetism
Electric Motors
Glossary of Electricity Terms
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Work and Energy
Energy
Kinetic Energy
Potential Energy
Work
Power
Momentum and Collisions
Pressure
Heat
Temperature
Astronomy
Astronomy for Kids
Solar System
Sun
Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
Pluto
Black Holes
Galaxies
Stars
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Waves and Sound
Intro to Waves
Properties of Waves
Wave Behavior
Basics of Sound
Pitch and Acoustics
The Sound Wave
How Musical Notes Work
The Ear and Hearing
Glossary of Wave Terms
Light and Optics
Intro to Light
Light Spectrum
Light as a Wave
Photons
Electromagnetic Waves
Telescopes
Lenses
The Eye and Seeing
Nuclear Physics and Relativity
Atom
Elements
Periodic Table
Radioactivity
Theory of Relativity
Relativity - Light and Time
Elementary Particles - Quarks
Nuclear Energy and Fission
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Why is physics important?
Physics explains how the world around us works. Many of our modern technologies are based off of scientific discoveries made in the science of physics. Engineers use physics to help design airplanes, cars, buildings, and electronics such as computers and cell phones.
Important Discoveries in Physics
- Nicholas Copernicus - discovered that the Earth rotates around the Sun.
- Galileo - demonstrated that heavy objects do not fall faster than lighter ones in his famous Leaning Tower of Pisa experiment.
- Isaac Newton - published the three laws of motion and explained how gravity works.
- John Dalton - described the atom and the atomic theory of matter.
- Albert Einstein - published the theory of relativity.
- Max Planck - described quantum theory.
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