A College Text-book of PhysicsH. Holt, 1911 - 692 pages |
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Page 3
... obtained from the world about it . 3. Experiment . - Physics is an experimental science , its generalizations rest solely upon experiment , and although reasoning upon established facts has often led to the discovery of new truths of ...
... obtained from the world about it . 3. Experiment . - Physics is an experimental science , its generalizations rest solely upon experiment , and although reasoning upon established facts has often led to the discovery of new truths of ...
Page 12
... obtained whether they represent forces , velocities , momenta , or any other quantities having direction as well as magnitude . 21. Resolution of Displacements . - There is only one resultant displacement that can be found when the ...
... obtained whether they represent forces , velocities , momenta , or any other quantities having direction as well as magnitude . 21. Resolution of Displacements . - There is only one resultant displacement that can be found when the ...
Page 39
... obtained by the method of substitution , in which the body is placed in one pan of the balance and some convenient counterpoise , such as sand or shot , which will exactly balance it , placed in the other pan . The body is then removed ...
... obtained by the method of substitution , in which the body is placed in one pan of the balance and some convenient counterpoise , such as sand or shot , which will exactly balance it , placed in the other pan . The body is then removed ...
Page 43
... the work done ; and also that when work is obtained from a heat engine a precisely corresponding amount of heat disappears . It is therefore concluded that the work which seems to be lost in friction is not really WORK AND ENERGY 43.
... the work done ; and also that when work is obtained from a heat engine a precisely corresponding amount of heat disappears . It is therefore concluded that the work which seems to be lost in friction is not really WORK AND ENERGY 43.
Page 52
Arthur Lalanne Kimball. at the crank to support it , is at once obtained from the principle that the moments of F and W about the axis must be equal , since the only motion that the system can have is one of rotation . Hence if R is the ...
Arthur Lalanne Kimball. at the crank to support it , is at once obtained from the principle that the moments of F and W about the axis must be equal , since the only motion that the system can have is one of rotation . Hence if R is the ...
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Common terms and phrases
acceleration alternating current amount ampères angular armature axis ball beam body Boyle's law bulb calorimeter carbon cause cell centimeter circuit coil color condenser conductor connected constant copper cord crystal curve density diagram difference of potential direction disc discharge displacement distance dynes earth electric electrode electromotive force electroscope energy equal equilibrium flow focal length friction galvanometer gases glass gram heat induction iron J. J. Thomson lens Leyden jar light lines of force liquid magnetic field mass measured mercury metal mirror molecules moment of inertia motion moving needle negative number of lines parallel particles pass pipe placed plane plate polarized pole positive charge pressure prism radiation rays reflected refracted resistance right angles rotation shown in figure side sound spectrum substance surface temperature tones tube vapor velocity vessel vibration volts volume wave length weight wire zinc
Popular passages
Page 275 - It is hardly necessary to add that anything which any insulated body or system of bodies can continue to furnish without limitation cannot possibly be a material substance ; and it appears to me to be extremely difficult, if not quite impossible, to form any distinct idea of anything capable of being excited and communicated in the manner in which heat was excited and communicated in these experiments except it be motion.
Page 574 - When a ray of light passes from one medium to another, it is refracted so that the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equal to the ratio of the velocities in the two media.
Page 103 - The squares of the periodic times of the planets are proportional to the cubes of their mean distances from the Sun.
Page 118 - Archimedes stated that a body immersed in a fluid is buoyed up by a force equal to the weight of the displaced fluid.
Page 165 - We conclude that equal volumes of different gases at the same temperature and pressure contain equal numbers of molecules.
Page 7 - The straight line or distance between the centres of the transverse lines in the two gold plugs in the bronze bar deposited in the Office of the Exchequer...
Page 272 - Hypothesis states that equal volumes of gases at the same temperature and pressure contain equal numbers of molecules.
Page 22 - Change of momentum is proportional to the force and to the time during which it acts, and is in the same direction as the force; (3) To every action there is an equal and opposite reaction.
Page 32 - ... the perpendicular distance from the axis to the line of action of Axis FIG.
Page 179 - Kelvin has shown that if a drop of water were magnified to the size of the earth the molecules of water would be of a size intermediate between that of a cricket ball and of a marble.