Essentials of Modern Physics |
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Common terms and phrases
absorbed air film alternating current amperes angle armature attraction ball barometer body bulb calories candle power carbon circuit coil colors compressed condenser conductor convex copper cylinder Daniell cell density diameter direction distance earth elastic electric electroscope energy engine equals ether waves exerts expansion focal length forces acting friction gases glass gram gravity heat increases internal resistance iron lamp lens lenses lever lift light waves lines of force liquid machine mechanical advantage melting mercury metal meter mirror molecules motion moves needle object ohms parallel Pascal's law pendulum pipe piston plane plate pole poundal pressure produce proportional pull pump QUESTIONS AND PROBLEMS rays of light reflected refracted shown in Fig shows solid sound waves specific weight steam string substance surface temperature thermometer tion tube unit vacuum valve vapor velocity vibration rate voltage voltaic cell volts volume wheel wire
Popular passages
Page 91 - Every body continues in its state of rest, or uniform motion in a straight line, unless it is compelled to change that state by forces impressed on it (inertia).
Page 91 - Every particle of matter, in the universe, attracts every other particle 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 99 - The rate of change of momentum is proportional to the impressed force, and takes place in the direction in which the force acts.
Page 101 - An erg is the work done by a force of one dyne acting through a distance of one centimeter ; or unit work is done by unit force acting through unit distance.
Page 89 - 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 91 - All bodies continue in a state of rest, or of uniform motion in a straight line, unless acted upon by some external force that compels a change.
Page 28 - Principle states that a body wholly or partially immersed in a fluid is buoyed up by a force equal to the weight of the fluid displaced by it.
Page 152 - The gram calorie, or small calorie (cal.), is the amount of heat required to raise the temperature of 1 gram of water 1°...
Page 258 - When the object is between the center of curvature and the principal focus, the image is real, inverted, larger than the object, and is beyond the center (Fig.
Page 434 - Henry, which is the induction in a circuit when the electro-motive force induced in this circuit is one international volt while the inducing current varies at the rate of one Ampere per second.