Elements of physicsH. Holt and Company, 1902 - 426 pages |
Contents
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Common terms and phrases
acceleration accordingly atmospheric pressure attraction ball boiling called center of gravity Centigrade cohesion condense conductor convex cord cork cubic centimeter cylinder density dew point direction distance dynes earth elasticity electric electrified equal expand experiments falling body feet film flask gases glass tube grams gravitation heat hence hydrogen inches increase iron kinetic energy LABORATORY EXERCISE length lever light lines of magnetic liquid Luminiferous Ether machine magnetic field magnetic force magnetic pole mass measured mechanical advantage melting metal meter millimeters molecules momentum motion moving needle north-seeking particle pendulum piece piston plane plate position potential energy pound mass poundals pounds produced pulley quantity resonator rider rotation rubber sealing wax seen side solid sound spherical square standing waves steam substance surface tension swing temperature thermometer thread tion tuning fork vapor pressure velocity vertical vessel vibration volume wall wave-front wave-length weight wire
Popular passages
Page 30 - 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 405 - As a unit of resistance, the international ohm, which is based upon the ohm equal to 10" units of resistance of the CGS system of electromagnetic units, and is represented by the resistance offered to an unvarying electric current by a column of mercury at the temperature of melting ice, 14.4521 grams in mass, of a constant cross-sectional area and of the length of 106.3 centimetres.
Page 134 - 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 the Heat was excited and communicated in these experiments, except it be MOTION.
Page 406 - Henry, which is the induction in a circuit when the electromotive force induced in this circuit is one international volt while the inducing current varies at the rate of one Ampere per second.
Page 405 - As a unit of electromotive force, the international volt, which is the electromotive force that, steadily applied to a conductor whose resistance is one international ohm, will produce a current of one international ampere...
Page 420 - He has apportioned his pages with rare good judgment " ' (Churchman). — " It is of all things thorough " (Brooklyn Eagle). — " There is nothing superficial about it " (Hartford Courant). — "" n has a reliability and authority which give it the highest value " (Chicago Tribune).—" Distinctly scientific " (Providence Journal). — '* It seems to have been his desire to let no interesting topic escape. . . . The wonder is that those parts of the book which ought to be dry are so readable. ......
Page 30 - Change of motion is proportional to the impressed force and takes place in the direction of the straight line in which the force acts.
Page 58 - SPECIFIC GRAVITY. THE Specific Gravity of a body, is the ratio of its weight to the weight of an equal volume of some other body assumed as a standard.
Page 405 - As a unit of quantity, the international coulomb, which is the quantity of electricity transferred by a current of one international ampere in one second. As a unit of capacity, the international farad, which is the capacity of a condenser charged to a potential of one international volt by one international coulomb of electricity.