A Laboratory Course in Everyday PhysicsMacmillan, 1931 - 205 σελίδες |
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Σελίδα 132
... turned to a liquid or a liquid to a gas does not affect the thermometer . Formerly it was thought that this heat was hidden in some way , and for this reason it was called " latent " heat . We now know that when the heat disappears , it ...
... turned to a liquid or a liquid to a gas does not affect the thermometer . Formerly it was thought that this heat was hidden in some way , and for this reason it was called " latent " heat . We now know that when the heat disappears , it ...
Σελίδα 154
... turned into work . These engines do work which was formerly done by human beings or by animals , or not done at all . In this way the human race has been freed from heavy drudgery , and the energy thus saved is devoted to higher forms ...
... turned into work . These engines do work which was formerly done by human beings or by animals , or not done at all . In this way the human race has been freed from heavy drudgery , and the energy thus saved is devoted to higher forms ...
Σελίδα 158
... turned into work , it produces 42,700 gram centimeters of work . The work done when one heat unit is turned into work is known as the Mechanical Equivalent of Heat . - I Cost of work . The best steam engines use about 1 lb. of coal per ...
... turned into work , it produces 42,700 gram centimeters of work . The work done when one heat unit is turned into work is known as the Mechanical Equivalent of Heat . - I Cost of work . The best steam engines use about 1 lb. of coal per ...
Περιεχόμενα
CHAPTER | 1 |
CHAPTER II | 13 |
CHAPTER III | 20 |
Πνευματικά δικαιώματα | |
16 άλλες ενότητες δεν εμφανίζονται
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
amperes appliances armature atmosphere B. T. U. of heat bell body boiling point Boyle's law British Thermal Unit calories carbon centimeter coil cold water compressed convection cooled copper cubic cylinder Daniell cell density diagram direction distance dynamo electric current electromagnet electromotive force engine equal evaporation example exerted expands experiment fire flask foot pounds force arm fruit press fulcrum gases glass gram hot-water induced current iron jackscrew Joule's law lamp latent heat Leclanché cell lens lever lines of force liquid magnetic lines measure mercury metal meter molecules motor moves north pole object Ohm's law ohms Pascal's law passes pipe piston placed plate poundals pressure produced radiation rays resistance screw shown in Fig sound south pole square inch steam stove stroke substance surface tank temperature thermometer tube turned vacuum valve velocity vibration volts volume warmed watts waves weight arm wire