An Elementary Physics for Secondary Schools |
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Common terms and phrases
alternating current amount ampères angles antinodes Apparatus armature atoms balance ball barometer battery block body called carbon centimetres centre charge circuit coil colors conductor connected copper cubic centimetres density diameter difference of potential direct current direction distance dynamo earth electric electroscope energy equal EXERCISE fork friction galvanometer gram gravity Green horizontal induced induction coil iron kilogram lamp large number lens lever light liquid machine magnet mass measure the length mercury metal metre stick millimetre mirror molecules motion move needle object particles pendulum pipes plane plate poles position pressure produced pulley quantity R₁ reading reflected resistance scale screw shown in Fig side solid specific heat spectrum spherometer string substance surface temperature thermometer tion tuning fork unit vapor velocity of sound vernier vibration violet volts volume wave length weight wire zero
Popular passages
Page 15 - Every body continues in its state of rest, or uniform motion in a straight line, except in so far as it may be compelled by force to change that state.
Page 35 - s Law of Universal Gravitation. Any two bodies in the universe are attracted to each other with a force that is proportional to the product of the masses of the two bodies and inversely proportional to the square of the distance between them.
Page 35 - Law of gravitation: Every particle of matter in the universe attracts every other particle with a force varying directly as the product of their masses and inversely as the square of the distance between them.
Page 352 - The intensity of light at a point varies inversely as the square of the distance of the point from the source of light and directly as the intensity of the source.] 17.
Page 29 - P must be equal in magnitude and opposite in direction to „ the resultant of the loads L.
Page 43 - Pressure at any point in a liquid is proportional to the depth of the point below the surface of the liquid...
Page 290 - The kilogramme is 1000 grammes ; and a gramme was intended to be the mass of a cubic centimetre of water at its temperature of maximum density, about 3'93°C.
Page 55 - A balloon rises because it is buoyed up by a force equal to the weight of the air it displaces.
Page 307 - Then weigh the flask filled with the liquid and subtract the weight of the flask ; the result is the weight of a volume of the liquid equal to the volume of the water.