Whitman-Peck Physics

airfoil airplane alternating current amperes angle atmosphere automobile axle bimetal body boiling Boyle's Law brake carburetor cell circuit coil color compressed condenser connected cooling current flow cylinder direct current direction distance dry cell earth electric electrons energy engine equal film force friction ft per second fuel gases gasoline gear glass gravity heat horsepower increase internal-combustion engine kinescope lamp lb per square length lens lift light liquid machine magnetic measure mechanical mechanical advantage mercury metal meter metric system miles miles per hour molecules motion motor move particles pipe piston plane plate pole pressure principle produce pull pump push radiator rays resistance result rotating shown in Fig Sidelight sound space specific gravity speed spring steam surface tank temperature tion tricity tube turn unit vacuum valve vapor velocity vertical vibration voltage volume warm wave weight wheels wire