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Vox audita perit, littera scripta manet - The spoken word perishes, but the written word remains

Waves, sound and Doppler effect tutorial

Follow along with our graduate GEYM tutor, Ole Krarup, as he explains the physics behind waves, sound and Doppler effect.

Kinematics Tutorial

Key Concepts: Displacement Velocity Acceleration Equations of motion Projectile motion QUESTION 1: "A car is driving down a highway....

Free body diagrams and forces tutorial

What is a "free body diagram" anyways? Basically, it's a drawing that shows all the force arrows affecting an object! How do we use them?

Separation of variables tutorial

How fast does your car come to a stop and what does this have to do with differential equations and separation of variables?

Integrals and integration tutorial

Key concepts: Integrals/integration Definite and indefinite integrals Substitution Let's face it: Doing integrals and doing them right...

Derivatives and differentiation tutorial

Key concepts: Derivatives/differentiation Product rule Chain rule Quotient rule If you are reading this tutorial, your teacher has...

Sine and Cosine Tutorial

Key concepts: Trigonometry Sine and cosine Geometry Look, we get it; trigonometry kind of sucks. As if regular geometry wasn't bad enough...

Astronomy and Gravity Tutorial

Do you find your homework on gravity to be unattractive? Don't worry! Check out our physics tutor's explanation of Newton's law of Gravity!

Circular motion tutorial

Key concepts: Circular motion Centrifugal force Newton's laws

Elastic Collision Tutorial

What do billiard balls and colliding air molecules have in common? Check out our physics tutor's explanation of elastic collisions!

Inelastic collisions: The physics of snowball fights!

Have you ever been hit in the face with a snowball and wondered if both energy and momentum were conserved in the process?