Oscillating phenomena in nature and the building, blocks of matter. Masses on springs, pendula,, waves on strings, sound waves, light waves. Optics, including the action of lenses, examples of, diffraction, interference. Wave-particle duality, of light and the electron. Quantum mechanics,, behavior of electrons in atoms, atoms in, molecules, protons and neutrons in nuclei, quarks, in protons and neutrons. Students may not earn, credit for both PHYS 142 and PHYS 152. Lecture,, Lab.