A College Text-book of PhysicsH. Holt and Company, 1923 - 720 pages |
Contents
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Common terms and phrases
acceleration alpha particles alternating current amount ampères armature atomic atomic weight axis ball battery beam beta particles body bright called cathode cause cell centimeter circuit coil color condenser conductor connected constant copper cord crystal curve diagram direction disc discharge displacement distance earth electric electromotive force electrons energy equal equilibrium flow focal length friction galvanometer gases glass gram heat index of refraction induction iron J. J. Thomson lens Leyden jar light lines of force liquid magnetic field mass measured mercury metal meters mirror molecules motion moving needle negative number of lines oscillation parallel pass placed plane plate polarized pole positive charge pressure prism produced radiation radius rays reflected refracted resistance right angles rotation screen shown in figure side spectrum substance surface temperature tion transmitted tube unit vapor velocity vibration volts wave length weight wire
Popular passages
Page 274 - It is hardly necessary to add that anything which any insulated body or system of bodies can continue to furnish without limitation cannot possibly be a material substance ; and it appears to me to be extremely difficult, if not quite impossible, to form any distinct idea of anything capable of being excited and communicated in the manner in which heat was excited and communicated in these experiments except it be motion.
Page 103 - The squares of the periodic times of the planets are proportional to the cubes of their mean distances from the Sun.
Page 592 - When a ray of light passes from one medium to another, it is refracted so that the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equal to the ratio of the velocities in the two media.
Page 118 - Archimedes stated that a body immersed in a fluid is buoyed up by a force equal to the weight of the displaced fluid.
Page 7 - The straight line or distance between the centres of the transverse lines in the two gold plugs in the bronze bar deposited in the Office of the Exchequer...
Page 270 - Hypothesis states that equal volumes of gases at the same temperature and pressure contain equal numbers of molecules.
Page 165 - We conclude that equal volumes of different gases at the same temperature and pressure contain equal numbers of molecules.
Page 31 - ... the perpendicular distance from the axis to the line of action of Axis FIG.
Page 178 - Kelvin has shown that if a drop of water were magnified to the size of the earth the molecules of water would be of a size intermediate between that of a cricket ball and of a marble.
Page 266 - The specific heat of a substance is the number of calories required to raise the temperature of 1 gram of that substance by 1 ° C.