Simple Experiments in Physics: Mechanics, Heat, Fluids

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A. S. Barnes, 1906 - Physics - 142 pages
 

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Page 56 - The parts of the lever, into which the fulcrum divides it, are called the arms of the lever. When the arms are in the same straight line, it is called a straight lever, otherwise a bended, or more commonly, a bent lever.
Page 26 - Newton's first law, which states that a body at rest tends to remain at rest, and a body in motion tends to remain in motion in a straight line at a constant speed, unless it is acted on by a force.
Page 88 - Archimedes' principle, which states that a body wholly or partly immersed in a fluid is buoyed up with a force equal to the weight of the fluid displaced by the body.
Page 84 - ... 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.
Page 58 - With pulleys thus arranged, a given power will support a weight as many times as great as itself as there are parts of the cord supporting the movable block.
Page 56 - SKINNER in 1877, that the mean value of the pressure multiplied by the distance through which it...
Page 92 - According to Boyle's law, the volume of a gas varies inversely as the pressure affecting it so long as the temperature remains constant; consequently in doubling or trebling the pressure the volume becomes one-half or onethird respectively. According to Charles...
Page 80 - Hence a floating body displaces its own weight of the liquid in which it floats.
Page 82 - The ratio of the weight of a substance in air to that of an equal volume of water is called the specific gravity of the substance...
Page 74 - Archimedes that a body immersed in fluid loses in weight an amount equal to the weight of the fluid displaced.

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