Practical Physics |
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Common terms and phrases
accuracy accurate adjustment angle apparatus arithmetic mean arithmetical axis of rotation balance beam body bulb C.G.S. unit calculated calorimeter Cavendish Laboratory centimetres coincides correction corresponding cross-wires cubic centimetre curve cylinder deflexion density determine disc distance division electromotive force Enter results equal error experiment expressed fixed force fork formula fraction given gives glass glycerine graduations grammes heat Hence horizontal hydrometer hypsometer inch inertia instrument knife-edges length Let the weight liquid logarithms magnetic mark mass means mercury method microscope millimetre moment of inertia moving multiply numerical measure observations obtained oscillation parallel pendulum piece placed plane pointer position pressure quantity radius ratio resting-point scale pans screw shew shewn slide slider solid specific gravity spherometer string suppose surface swing tangent telescope temperature thermometer tube turn velocity vernier vertical vessel vibration volume wire Young's Modulus zero
Popular passages
Page 581 - It is nearly filled with the solution, and connected to the rest of the circuit by being placed on a clean copper support to which a binding screw is attached.
Page 581 - It is then to be rinsed successively with distilled water and absolute alcohol and dried in a hot-air bath at a temperature of about 160° C.
Page 581 - In determining by this method the constant of an instrument the current should be kept as nearly constant as possible, and the readings of the instrument observed at frequent intervals of time. These observations give a curve from which the reading corresponding to the mean current (time-average of the current) can be found. The current, as calculated by the voltameter, corresponds to this reading.
Page 580 - In employing the silver voltameter to measure currents of about 1 •ampere the following arrangements should be adopted. The kathode on which the .silver is to be deposited should take the form of a platinum bowl not less than 10 centimetres in diameter, and from 4 to 5 centimetres in depth.
Page 581 - The anode is then to be immersed in the solution so as to be well covered by it and supported in that position ; the connections to the rest of the circuit are then to be made.
Page 14 - The rate of change of momentum is proportional to the impressed force, and takes place in the direction of the straight line in which the force acts.