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FearOfPhysics.com: A free online course on physics

Want to learn physics? Welcome to our free online physics course!

Here's how to start:

  • Download and read these free notes on physics.
  • Watch and study the physics videos listed below, in the order that they appear.
  • Work the problems linked to at the end of each section.

If you do this, you'll get the equivalent of a first-term college-level physics course. Good luck! We hope you learn something!

Introduction

Lesson 1: The power of basic physics mechanics: predicting motion of an object (watch it)
Lesson 2: Variables used to describe the motion of an object (watch it)
Lesson 3: Three important equations used to study motion of an object (watch it)

One dimensional motion

Lesson 4: Thinking about velocity and acceleration (watch it)
Lesson 5: Getting the signs right with one dimensional motion (watch it)
Lesson 6: Hints for solving problems with multiple accelerations (watch it)
Lesson 7: An introduction to vectors (watch it)
Lesson 8: Correctly reporting answers with vectors (Part I) (watch it)
Lesson 9: Correctly reporting answers with vectors (Part II) (watch it)
Section test: Work these problems.

Two dimensional motion

Lesson 10: Two dimensional or projectile motion (watch it)
Lesson 11: Transitioning yourself from one to two dimensional motion (watch it)
Lesson 12: Hang time or the time a projectile spends in the air (watch it)
Section test: Work these problems.

Newton's Laws

Introduction

Lesson 13: What the goal of Newton's second law F=ma is (watch it)
Lesson 14: Why F=ma is not very useful (watch it)

Types of Forces

Lesson 15: Types of forces you'll encounter in a physics class (watch it)
Lesson 16: What weight is (watch it)
Lesson 17: What tension is (watch it)
Lesson 18: How the spring force works (watch it)
Lesson 19: Why objects slide down sloped surfaces (watch it)
Lesson 20: What the normal force is (watch it)
Lesson 21: Where friction comes from (watch it)
Lesson 22: Where the centripetal force comes from for objects moving in circles (watch it)

Hints when using forces

Lesson 23: Using the force of tension in solving physics problems (watch it)
Lesson 24: Facts about tension as it deals with ropes (Part 1 of 2) (watch it)
Lesson 25: A fact about tension as it deals with ropes (Part 2 of 2) (watch it)
Lesson 26: How to correctly find the normal force (watch it)

Problems involving forces

Lesson 27: Solving the problem of 3 blocks tied together by ropes (watch it)
Lesson 28: Solving the problem of a block on a table with two blocks hanging over the sides (watch it)
Lesson 29: Solving the problem of a mass on an inline connected to a hanging mass with a rope (watch it)
Lesson 30: Solving the problem of two blocks connected by a rope one on a table with friction and the other hanging over the edge (watch it)
Lesson 31: Solving the problem of two blocks connected by a rope one on a frictionless table and the other hanging over the edge (watch it)
Lesson 32: Solving the problem of two blocks connected by a rope one on an incline and the other hanging over the edge (watch it)
Lesson 33: Solving the problem of two blocks connected by a rope one on an rough incline (with friction) and the other hanging over the edge (watch it)
Lesson 34: Solving the problem of a single block on an inclined surface (watch it)
Lesson 35: Solving the Atwood Machine problem (watch it)
Section test: Work these problems

Energy

Introduction

Lesson 36: An introduction to what energy is (watch it)
Lesson 37: What "conservation of energy" means (watch it)
Lesson 38: What "conservation of energy" means in a basic physics class (watch it)
Lesson 39: Types of potential energy used in a physics class (watch it)

Formulation

Lesson 40: Equations that deal with the conservation of energy (watch it)
Lesson 41: Potential energy equation of a pendulum (watch it)

Work

Lesson 42: What "work" means in a physics class (Part 1 of 2) (watch it)
Lesson 43: More on what "works" means in a physics class (Part 2 of 2) (watch it)
Lesson 44: Work due to friction (watch it)
Section test: Work these problems

Momentum

Lesson 45: Introduction to momentum and that it's conserved (watch it)
Section test: Work these problems

Rotational Motion

Lesson 46: Introduction to rotational motion (watch it)
Lesson 47: Units used in rotational motion (degrees radians rpms etc.) (watch it)

Statics

Lesson 48: Introduction to Statics (watch it)