200 pages, 67 dialogues – Example topics include significant figures, density, graphing, vectors, distance vs displacement, speed, acceleration, Newton’s Laws, forces, simple machines, pressure, weight and mass, translational and rotational motion, projectile motion, impulse, energy, work, power, heat, temperature, gas laws, waves, sound, light and color, optics, static electricity, current electricity, parallel and series circuits, voltage and resistance, magnetism, the atom, nuclear physics, r