A Text-book in Physics for Secondary SchoolsAmerican book Company, 1907 - 411 σελίδες |
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Συχνά εμφανιζόμενοι όροι και φράσεις
action agent amount ampere angle atmospheric pressure ball barometer body boiling point called capillary action cell centimeter circuit coil color conductor convex convex lens cooling copper cubic cubic foot cylinder density depth direction distance dynamo earth electric current electrified electromotive force energy equal ether waves example expansion flow fluid freezing point galvanometer gases given glass gram hence increase intensity iron known lens lever light liquid load machine magnetic field mass melting mercury metal molecules motion moving needle Ohm's law pendulum piston placed plane pole position potential produced pump QUESTIONS AND PROBLEMS radiations rays refraction resistance rotation shown in Figure shows solid sound waves specific gravity speed steam substance temperature thermometer tion tube unit valve vapor velocity vertical vessel vibration voltaic cell volume warm wave fronts wave length weight pressure wire zinc
Δημοφιλή αποσπάσματα
Σελίδα 360 - As a unit of current, the international ampere, which is one-tenth of the unit of current of the CGS system of electro-magnetic units, and which is represented sufficiently well for practical use by the unvarying current, which, when passed through a solution of nitrate of silver in water in accordance with accompanying specifications,1 deposits silver at the rate of o.ooi 1 1 8 of a gramme per second.
Σελίδα 132 - 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.
Σελίδα 132 - 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.
Σελίδα 114 - Newton generalized the law of attraction into a statement that every particle of matter in the universe attracts every other particle with a force which varies directly as the product of their masses and inversely as the square of the distance between them; and he thence deduced the law of attraction for spherical shells of constant density.
Σελίδα 74 - ... the ratio of the ovendry weight of a sample to the weight of a volume of water equal to the volume of the sample at some specific moisture content, as green, air-dry, or ovendry.
Σελίδα 6 - This book has been prepared in the belief that there is a...
Σελίδα 137 - The lever, the pulley, the wheel, and axle, the inclined plane, the wedge, and the screw.
Σελίδα 177 - The specific heat of a substance is the ratio of the quantity of heat required to raise the temperature of...