Jack and Jill went up the hill and found a problem: how can they pull a pail of water from the bottom of a well? In this expanded nursery story, we find there is more to a pulley–and its mechanical advantage–than meets the eye.
The Inclined Plane
The Lever
Mechanical Advantage and Friction
The Screw and the Wheel
The Pulley
Molecules in Solids
Molecules in Liquids
Evaporation and Condensation
Expansion and Contraction
Measuring Temperature
Temperature vs. Heat
Atoms
Electrons
Conduction
Volume and Density
Buoyancy
Convection
Heat as Energy
Radiation Waves
The Radiation Spectrum