Classical and Modern Physics: A Descriptive Introduction

a-particle acceleration alternating current ammeter angle atoms ball battery beam body called cathode centimeter cm/sec coil color condenser cosmic rays Coulomb's law crystal demonstrated direction disintegration distance dynes earth electric current electrons electroscope equal equation example experiment force F frequency given glass grams gravity heat helium Hooke's law hydrogen illustrated in Fig iron kinetic energy length lens light lines liquid magnetic field mass measured mercury metal mi/hr molecules momentum motion moving negatively charged neutrons nucleus object observed Ohm's law ohms orbit parallel particles photographic physicist plane plate positive charge potential poundals pressure prism produced proton refracted rotating scale shown in diagram shown in Fig spectrum speed stars string substances surface temperature theory tion transverse waves tube unit vapor vector velocity vibrating voltage volts wave-length weight wire x-rays y-ray