Notes on Physics1909 - Physics - 808 pages |
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Common terms and phrases
absolute unit acceleration Accordingly amount ampere atom axis battery Boyle's law cell centimeter circuit colors column components compression condensation conductor constant copper current flows curve difference of potential direction distance earth elasticity elec electricity electrified electrolyte electromotive force equal equipotential surface ether field of force galvanometer glass grams greater harmonic motion heat hence horizontal hydrogen ions iron kinetic energy known lens lines of force liquid longitudinal wave magnetic field mass matter medium mercury metal mirror molecular molecules Moreover move needle negative north pole number of lines opposite parallel particle pass pendulum plane plate polarized position pressure prism produced quantity ray of light reflected refraction resistance resultant rotation screen seen solenoid sound south pole spectrum sphere spherical substance surface takes place temperature tion tricity tube vapor vector velocity vertical vibrations volume wave front wave length weight wire zinc
Popular passages
Page 74 - Every body continues in its state of rest, or of uniform motion in a straight line, unless it is compelled to change that state by forces impressed upon it.
Page 95 - Newton discovered, as a fundamental law of nature, that every particle attracts every other particle with a force which varies directly as the product of the masses and inversely as the square of the distance between them.
Page 36 - Equation 3, we see that an angle of 1 rad is the angle subtended at the center of a circle by an arc equal in length to the radius of the circle (see Figure 2).
Page 655 - An exterior angle of a triangle is equal to the sum of the two opposite interior angles.
Page 95 - Every particle of matter in the universe attracts every other particle of matter with a force directly proportional to the product of the masses and inversely proportional to the square of the distance between them.
Page 114 - This latter calculation is laborious, the weight of each part of the structure and lading having to be multiplied by the square of its distance from the axis ; but with care it can be performed with a close approach to accuracy.
Page 74 - III. To every action there is always an equal' and contrary reaction; or the mutual actions of two bodies are always equal and in opposite directions. By "change of motion" we are to understand change of momentum, and by " impressed force ,
Page 139 - density of a substance to the density of some reference substance.
Page 403 - Ike current is directly proportional to the electromotive force and inversely proportional to the resistance.
Page 139 - The specific gravity of a solid or liquid is the ratio of the mass of the body to the mass of an equal volume of water at some standard temperature.