Laws and Properties of Matter |
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amount apparatus applied barometer beam body Boyle's law bulb bullet carbonic acid column compression consider constant contains cross section cube cubic centimetre curve cylinder decrease density depends distance dynes elastic elongation equal ergs exerted expand experiments film fluid foot-pounds force friction gases given grammes greater heat Hence Hooke's law horizontal hydrogen immersed increase isothermal Joule kinetic energy length less limits liquid mass measured mercury metres molecules momentum motion moving nitrogen oscillation oxygen parallel particles piston plane plates Poisson's ratio potential energy poundals pres properties quantity raised ratio resistance result right angles rigidity rise shearing strain shearing stress simple shear solid specific gravity square centimetre substance suppose surface tension temperature unit of area unit of volume vapour velocity vertical vessel viscosity weight wire Young's Modulus
Popular passages
Page 11 - Force is that which changes, or tends to change, the state of rest or motion of the body acted upon.
Page 45 - ... might be used in cooking victuals. But no circumstances could be imagined in which this method of procuring heat would be advantageous ; for more heat might be obtained by using the fodder necessary for the support of a horse as fuel.
Page 13 - Every body continues in a state of rest, or of uniform motion in a straight line, unless it is compelled to change that state by a force impressed upon it.
Page 107 - The specific gravity or relative density of a substance is the ratio of its density to the density of some standard substance.
Page 19 - ... as acted on by a system of parallel forces, whose resultant may be found : and these forces, in all positions of the body, act on the same points in the same vertical direction. There is, therefore, in every body a point, through which the resultant always passes, in whatever position it is placed. This point is called the centre of gravity of the body. The centre of gravity of a uniform cylinder or prism is in its axis, and at the middle of its length ; of a right cone or pyramid it is also...
Page 46 - That the quantity of heat capable of increasing the temperature of 1 Ib. of water (weighed in vacua, and bet-ween 55° and 60°) by 1° F., requires for its evolution the expenditure of a mechanical force represented by the fall of 772 Ibs. through the space of 1 foot.
Page 108 - ... the ratio of the mass of a given volume of the substance to the mass of an equal volume of water, in which case it is equal to the specific gravity. In its application to gases, the term
Page 36 - The work is measured by the product of the force and the distance through which the point of application is moved in the direction of the force.
Page 178 - ... millimetre-scale on p, and the temperature of the water in r ascertained. These, with the height of the barometer, give the volume of the gas. On the tube r marks are made (not shown in the drawing) corresponding to and on the same level with those on q. When the difference of level of the mercury in the two tubes is to be measured, p is applied to r and the level of the mercury in q read off, the marks on r giving the direction for the eye ; that in p is then read off in the ordinary way, the...
Page 172 - ... the absolute values of two temperatures are to one another in the proportion of the heat taken in to the heat rejected in a perfect thermo-dynamic engine working with a source and refrigerator at the higher and lower of the temperatures respectively.