Projectile motion, mechanics and electricity and magnetism. Solid understanding of algebra and a basic understanding of trigonometry necessary.
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One-dimensional motion

In this tutorial we begin to explore ideas of velocity and acceleration. We do exciting things like throw things off of cliffs (far safer on paper than in real life) and see how high a ball will fly in the air.

Two-dimensional motion

You understand velocity and acceleration well in one-dimension. Now we can explore scenarios that are even more fun. With a little bit of trigonometry (you might want to review your basic trig, especially what sin and cos are), we can think about whether a baseball can clear the "green monster" at Fenway Park.

Forces and Newton's laws of motion

This tutorial is the meat of much of classical physics. We think about what a force is and how Newton changed the world's (and possibly your) view of how reality works.

Work and energy

Work and energy. Potential energy. Kinetic energy. Mechanical advantage. Springs and Hooke's law.

Impacts and linear momentum

Linear momentum. Conservation of momentum. Elastic collisions.

Moments, torque, and angular momentum

Thinking about making things rotate. Center of mass, torque, moments and angular velocity.


Classical gravity. How masses attract each other (according to Newton).

Oscillatory motion

Pendulums. Slinkies. You when you have to use the bathroom but it is occupied. These all go back and forth over and over and over again. This tutorial explores this type of motion.


Atmospheric pressure is like an invisible friend who is always squeezing you with a big hug. Learn more about pressure, buoyant force, and flowing fluid so you can appreciate the sometimes invisible, but crucial, effect they have on us and the world around us.


Electricity and magnetism

Electrical circuits are all around us. The computer you're using to read this is full of them! Let's start to study how electrical charges interact.


Mechanical waves and sound

Geometric optics

Light waves

Work and energy

Work and energy. Potential energy. Kinetic energy. Mechanical advantage. Springs and Hooke's law.
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All content in “Work and energy”

Mechanical advantage

If you have ever used a tool of any kind (including the bones in your body), you have employed mechanical advantage. Whether you used an incline plane to drag something off of a pick-up truck, or the back of a hammer to remove a nail, the world of mechanical advantage surrounds us.

Springs and Hooke's law

Weighing machines of all sorts employ springs that take a certain amount of force to keep compressed or stretched to a certain point. Hooke's law will give us all the tools to weigh in on the subject ourselves and spring into action (yes, the puns are annoying us too)!