The Idea of the Center of Gravity

Newton's First Law of Motion-Inertia

3. Newton's Second Law of Motion – The Elevator Problem

Newton's Third Law of Motion – Momentum

Energy and Momentum

Concerning Falling Bodies and Projectiles

The Simple Pendulum and Other Oscillating Things

Soap Bubbles and Soap Films

Atmospheric Pressure – The Properties of Gases

Centrifugal Force and Other Strange Matters

The Strange Behavior of Rolling Things

Archimedes' Principle

Pascal's Principle – The Properties of Liquids

Levers, Inclined Planes, Geared-Wheels and Other Simple Machines