Succeed in Understanding Physics

Physics is a branch of Physical Science concerned with the study of the physical properties of matter. The knowledge of Physics is important for the development of the products we use. It is also an interesting and exciting subject of value in many walks of life.

There is a great need for people who understand scientific principles and know how to think logically. Your knowledge and skills in these areas can help you excel in school, advance your career or improve your business.

The purpose of these free online lessons is to give you a start at improving your scientific knowledge of physics that will help you become a champion in the field. If you have any questions, send me an email.

Note: We now have many lessons in audio, so you can read along the spoken word.

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Physics Contents

Basics of Physics Matter -- Particles of Matter -- States of Matter -- Fluids Motion -- Motion and Energy Nuclear Energy Force -- Work and Force -- Gravity and Gravitation -- Friction Force Machines Heat and Thermodynamics Electricity -- Static Electricity -- DC Electricity

-- AC Electricity Magnetism -- Electromagnetism Wave Motion -- Sound waves - Acoustics -- Electromagnetic Waves ---- Visible Light - Optics Resources Survey question My Book Share link Astronomy Chemistry

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Basics of Physics

Defining Physical Science - audio

Using Mathematics in Physical Science - audio

Fundamental Units of Measurement

Using a Scientific Calculator

Sensors and Detectors - audio

Physics of Computer Games - audio

Jobs Using Physical Science - audio

Become a Champion in Physical Science

Three Levels of a Champion in Science - audio

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Matter

Overview of Study of Matter

Definition of Matter

Theories of Matter

Kinetic Theory of Matter

Measurement of the Mass of Matter

Particles of Matter

Structure of the Atom - audio

Are Atoms Tiny Solar Systems?

Atomic Weight

Subatomic Particles

Neutrons

Antiparticles

Antimatter

Density

Density of Matter

Factors in Density of Matter

States of Matter

States of Matter

Changing States of Matter

Pressure and States of Matter

Exotic States of Matter

Evaporation is Changing Liquid to Gas

Evaporation

When Water Vapor Becomes Snow

Dry Ice is Solid Carbon Dioxide

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Fluids

Characteristics of Fluids

Pressure in Fluids

How Objects Float in Fluids

Applications of Fluid Principles

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Motion

Relative Motion, Speed, Velocity and Acceleration - audio

Newton's Laws of Motion - audio

Motion and the Law of Inertia - audio

Orbital Motion and Kepler's Laws - audio

Periodic Motion - audio

Pendulum Exhibits Periodic Motion - audio

Simple Pendulum Equations - audio

Newton's Cradle - audio

Derivation of Principles of Newton's Cradle

Motion and Energy

Types of Energy

Kinetic Energy Concerns Movement of Matter

Potential Energy

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Nuclear Energy

Nuclear Reactions

Radioactivity

Force

Characteristics of Force - audio

Units of Force

Force Affects Motion - audio

Force and Torque - audio

The Mysterious Force at a Distance - audio

Centripetal Force

Inertial and Real Forces

Centrifugal Force is Not Real

Fundamental Forces

Pressure is Force per Unit Area - audio

Work and Force

Work is a Result of Force

Relationship between Work and Kinetic Energy

Gravity and Gravitation

Overview of Gravity and Gravitation

Overview of Force of Gravity

Gravity Resources

Overview of Gravitation

Gravitation Resources

Go to Gravity and Gravitation section for a full list of lessons

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Friction Force

Resistive Force of Friction - audio

Uses, Advantages and Disadvantages of Friction - audio

Causes of Friction - audio

Sliding friction

Standard Friction Equation

Changing Sliding Friction on Hard Surfaces - audio

Coefficient of Friction Values for Clean Surfaces - audio

Coefficient of Friction Values for Greased Surfaces - audio

Rolling friction

Role of Friction in Starting Rolling Motion

Rolling Friction - audio

Rolling Friction and Automobile Tires - audio

Preventing Loss of Traction

Fluid friction

Decreasing or Increasing Fluid Friction - audio

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Machines

Overview of Machines

Mechanical Advantage in Machines

Simple Machines

Lever is a Simple Machine

Tools Used to Perform Simple Tasks

Efficiency of Machines

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Heat and Thermodynamics

Thermal Energy is Total Kinetic Energy

Heat

Heat Transfer

Heat Transfer with Hot Coffee

Heat Transfer on Earth

Thermodynamics is Connection Between Heat and Work

Heat Required to Turn Ice into Steam - audio

Mpemba Effect: Hot Water Freezes before Cold

Temperature

Temperature is Average Thermal Energy

Temperature Measurement: Thermometers

Temperature Scales

Lower and Upper Temperature Limits

Equations for Temperature Limits

Heating

Heating a Greenhouse

Thermal Insulation Prevents Heat From Escaping

Thermos Container has Good Insulation

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Electricity and Magnetism

Electrical Charges - audio

Basics of Electricity

Electricity Resources

Static Electricity

Basics of Static Electricity

Static Electricity Forces

Causes of Static Electricity

Electrostatic Induction

Detection of Static Electricity

Materials Causing Static Electricity

Static Electricity Sparks

Static Electricity and Lightning

Lightning Protection System

Static Electricity Shocks

Reducing or Preventing Static Electricity Shocks

Controlling Static Electricity

Overcoming Static Cling and Flyaway Hair

Generating Static Electricity

Uses for Static Electricity

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DC Electricity

Direct Current (DC) Electricity - audio

Direct Current (DC) Electrical Circuits - audio

Ohm's Law for Electrical Circuits

DC Electricity Resources

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AC Electricity

Alternating Current (AC) Electricity - audio

Alternating Current (AC) Transformers

Background of Worldwide AC Voltages and Frequencies - audio

List of Worldwide AC Voltages and Frequencies

AC Home Wiring - audio

Electrical Power - audio

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Magnetism

Magnetism

Magnets

Detection of a Magnetic Field

Confusion About the North Magnetic Pole

Factors Determining Magnetic Properties

Classifications of Magnetic Materials

Moving Electrical Charges Create Magnetic Field

Magnetism and Lorentz Force

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Electromagnetism

Basics of Electromagnetism - audio

Solenoids

Electromagnets

Generating Electrical Current - audio

Electromagnetic Devices and Inventions - audio

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Wave Motion

Overview of Wave Motion - audio

Units of Frequencies and Wavelengths

Doppler Effect for Waveforms

Conventions for Doppler Effect Equations

Summary of Doppler Effect Equations

Derivation of Doppler Effect Wavelength Equations

Derivation of Doppler Effect Frequency Equations

Derivation of Doppler Effect Velocity Equations

Waves and Obstacles - audio

Waveform Noise - audio

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Sound Waves - Acoustics

Overview of Sound Waves

Creating Sound Waves

Frequencies and Wavelengths of Sound

Speed of Sound in a Gas

Doppler Effect for Sound

Doppler Effect Equations for Sound

Traveling Faster than Sound

Making Sounds with Musical Instruments

Sound Created from a String or Wire

Equation for Sound Created from a String

Equation for Sound Created from a Wire

Detecting Sound Waves

How Obstacles Affect Sound Waves

Sound Echoes

Sound Seems Amplified Over Water

Reproducing Sounds

Beat Frequencies in Sound

Acoustics in Buildings

Noise Reduction

Active Noise Cancellation

Hearing - Using your Senses

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Visible Light Waves - Optics

Visible Light

Speed of Light

Doppler Effect Equations for Light

Refraction of Light

Snell's Law for the Refraction of Light

Dispersion of Light

Optical Devices

Lasers

Laser Battle Game (Java applet)

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Electromagnetic Waves

Electromagnetic Waves

Electromagnetic Spectrum

Infrared Radiation

Infrared, Gases and the Greenhouse Effect

X-rays

X-ray Characteristics

X-ray Generation

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Resources

Physics Resources

Astronomy

Chemistry

Experiments and Science Fair Projects

Interactive Graded Tests

Biographies

List of Champion Schools

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