A High School Course in Physics |
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Common terms and phrases
acceleration amperes angle ball body called calories cell circuit coil color component concave condenser conductor convex lens copper cubic centimeter cylinder Daniell cell density difference direction disk distance divergence dynes earth electricity electrophorus electroscope equal equation ether waves Exer fall force exerted galvanometer given glass grams gravity heat Hence inch index of refraction insulated iron kinetic energy Leyden jar lifted light lines of force liquid magnet mass measured mechanical advantage mercury metal meter mirror molecules motion moving N-pole needle negative charge object ohms pendulum piece pipe piston pitch placed plane plate poles positively charged potential poundals pressure produced quantity rays reflected refraction resistance result shown in Fig shows sound spectrum substance surface temperature tion tones tube tuning fork units vapor velocity vessel voltaic cell volume weight wheel wire zinc
Popular passages
Page 29 - Every body continues in its state of rest or of uniform motion in a straight line, except in so far as it may be compelled by impressed forces to change that state.
Page 62 - Every body in the universe attracts every other body with a force which is directly proportional to the product of their masses and inversely proportional to the. square of the distance between them.
Page 136 - A solid immersed in a liquid is buoyed up by a force equal to the weight of the liquid displaced.
Page 81 - Newton's law: every body in the Universe attracts every other body with a force that is directly proportional to the product of their masses, and inversely proportional to the square of the distance between their centers.
Page 319 - Why the image is seen as far behind the mirror as the object is in front of it.
Page 33 - NEWTON'S THIRD LAW OF MOTION. To every action there is always an equal and contrary reaction ; or, the mutual actions of any two bodies are always equal and oppositely directed.
Page 63 - Theoretical photometry makes use of two general laws of radiation; first, that the intensity of illumination of a surface is inversely proportional to the square of its distance from the light source...
Page 107 - The pressure of a liquid on any surface immersed in it is equal to the weight of a column of the liquid whose base is the...
Page 50 - ... Arm of a couple is the perpendicular distance between the lines of action of the...
Page 102 - The efficiency of a machine is the ratio of the useful work done by it to the total work done by the acting force, a.