Physics is the branch of natural science that studies the nature and properties of matter and energy. The term 'physics' is derived from the Ancient Greek word, i.e. 'phusik?' meaning knowledge of nature. Physics significantly contributes to technology, such as television, computers, the cell/mobile phone, advanced home appliances, nuclear weapons, etc. The essential topics studied in physics are mechanics, electricity, magnetism, heat, sound, light and other radiation, and the structure of atoms. Physics additionally justifies the evolution, structure, and functions of numerous elements Mechanics, heat & thermodynamics, optics, sound, electricity, and magnetism of the universe. The considerable Branches of Physics include Classical mechanics, Applied mechanics. Electromagnetism Optics, Thermodynamics, Statistical mechanics, Condensed matter physics Atomic and Molecular Physics, Astrophysics, Nuclear and Particle Physics, Applied Physics Sound Physics, Biophysics, Econophysics, Nanotechnology, Petrophysics Volume 1 consists of over 330 pages, and topics include MEASUREMENTS OF PARTICLES AND RADIATION Nucleon & Proton Number Particle Accelerators Threshold Frequency & Wavelength, Energy, Waves MEASUREMENTS, PARTICLES AND RADIATION Nucleon & Proton Number Particle Accelerators Threshold Frequency & Wavelength Recommended for A Level or SHS to degree