Chapter I. Introduction And Measurement. Page

• (1) Introduction 1
• (2) States of Matter 4
• (3) The Metric System 8

Chapter II. Molecular Forces And Motions.

• (1) Molecular Motions in Gases 13
• (2) Molecular Motions in Liquids 18
• (3) Molecular Forces in Liquids 21
• (4) Molecular Forces in Liquids and Solids 27
• (5) Molecular Forces in Solids 31

Chapter III. Mechanics or Liquids.

• (1) Liquid Pressure 36
• (2) Transmission of Liquid Pressure 41
• (3) Archimedes' Principle 47
• (4) Density and Specific Gravity 52

Chapter IV. Mechanics Of Gases.

• (1) Weight and Pressure of the Air 55
• (2) Compressibility and Expansibility of the Air 62
• (3) Pneumatic Appliances 66

Chapter V. Force And Motion.

• (1) Force, how Measured and Represented 79
• (2) Motion. Newton's Laws 85
• (3) Resolution of Forces 96
• (4) Moment of Force and Parallel Forces 99
• (5) Gravitation and Gravity 103
• (6) Falling Bodies 109
• (7) The Pendulum 115

Chapter VI. Work And Energy.

• (1) Work and Energy 119
• (2) Power and Energy 123
• (3) The Lever and Simple Machines 129
• (4) Wheel and Axle and Pulley 136
• (5) Efficiency and the Inclined Plane 142
• (6) Friction and its Uses 147
• (7) Water Power 152

Chapter VII. Heat, Its Production And Transmission.

• (1) Sources and Effects of Heat 159
• (2) Temperature and Expansion 162
• (3) Expansion of Gases, Liquids and Solids 167
• (4) Modes of Transmitting Heat 173
• (5) Convection, Heating and Ventilation 179
• (6) The Moisture in the Air, Hygrometry 191
• (7) Evaporation 196

Chapter VIII. Heat And Work.

• (1) Heat Measurement and Specific Heat 200
• (2) Heat and Changes of State 205
• (3) Heat and Work 212
• (4) Heat Engines 222

Chapter IX. Magnetism.

• (1) General Properties of Magnets 228
• (2) Theory of Magnetism, Magnetic Fields 232
• (3) The Earth's Magnetism 238

Chapter XI. Static Electricity.

• (1) Electrification and Electrical Charges 243
• (2) Electric Fields and Electrostatic Induction 247
• (3) Electric Theories, Distribution and Electric Charges 252
• (4) Potential, Capacity, and the Electric Condenser 257
• (5) Electrostatic Generators 262

Chapter XI. Electric Currents Produced By Voltaic Cells.

• (1) Electrical Currents and Circuits 267
• (2) The Simple Voltaic Cell and its Action 270
• (3) Practical Voltaic Cells 274

Chapter XII. Magnetic Effects Of Electric Currents, And Electrical Measurements.

• (1) The Magnetic Effect of Electric Currents 279
• (2) Electrical Measurements 289
• (3) Ohm's Law and Electrical Circuits 298
• (4) Grouping of Cells and Measuring Resistance 302

Chapter XIII. Chemical And Heat Effects Of Electric Currents.

• (1) The Chemical Effect of Electric Currents 307
• (2) The Storage Battery and Electric Power 312
• (3) The Heat Effect of Electric Currents 318

Chapter XIV. Induced Currents.

• (1) Electromagnetic Induction 326
• (2) The Dynamo and the Motor 335
• (3) The Induction Coil and the Transformer 343
• (4) The Telephone 349

Chapter XV. Sound.

• (1) Sound, Source, Speed, Media 354
• (2) Waves and Wave Motion 357
• (3) Intensity and Pitch of Sound 363
• (4) Musical Scales and Resonance 368
• (5) Interference, Beats, Vibration of Strings 374
• (6) Tone Quality, Vibrating Plates and Air Columns 384

Chapter XVI. Light.

• (1) Rectilinear Propagation of Light 388
• (2) Photometry and Law of Reflection 393
• (3) Mirrors and Formation of Images 400
• (4) Refraction of Light 410
• (5) The Formation of Images by Lenses 416
• (6) Optical Instruments 423
• (7) Color and Spectra 430
• (8) Nature of Light 442

Chapter XVII. Invisible Radiations.

• (1) Electric waves and Radioactivity 448

Chapter XVIII. Wireless Telephony And Alternating Currents.

• (1) Wireless Telephony 460
• (2) Alternating Currents 466
• Index 487

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PHYSICS

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