|Motion and Force||Electricity and Magnetism|
|Waves and Optics||Nuclear Physics|
Principles of Superposition — when two or more waves occupy the same space they combine to create a single wave equaling the sum of the individual waves
Constructive Interference — when two waves overlap crest on crest wave amplitudes add to create a larger wave amplitude
Destructive Interference — when two waves overlap crest on valley wave amplitude subtract to create a smaller wave amplitude
Reflection — wave bounces off a boundary between two mediums; angles are measured perpendicular to boundary
Refraction — wave bends as it passes from one medium to another; angles are measured perpendicular to boundary
Transmission — wave passes through a boundary between two mediums
Absorption — wave loses part of its energy to the medium
Polarization — orientation of vibration of a wave
Electromagnetic Waves — light, X-ray, Gamma rays, radio are all examples with different wavelengths
Focal length — distance between the lens and the point where rays converge together
Lateral Magnification — ratio of image height
|People in Physics||Notes|
Isaac Newton (1643-1727) — revolutionized the world of physics with his Laws of Motion and his Universal Law of Gravitation explaining tides, planetary orbits, and falling objects, and other phenomena.
James Clerk Maxwell (1831-1879) — proved the existence of electromagnetic waves and that light is an example of such a wave.
Albert Einstein (1879-1955) — famous for Special and General relativity; work in Special Relativity proved the speed of light is absolute and cannot be exceeded; work in General Relativity described Newton’s gravitational force as a distortion of space and time; also famous for the equation E=mc2 which describes how mass and energy are equal.
Marie Curie (1867-1934) and Pierre Curie (1859-1906) — pioneers in the field of radioactivity; discovered artificial radioactivity and made radium available to other scientists
Ernest Rutherford (1867-1937) — Considered the father of nuclear physics; developed nuclear model of atom, predicted existence of the neutron, in addition to discovering alpha and beta decay
Enrico Fermi (1901-1954) — experimented with nuclear fission and chain reactions; lead scientist on the Manhattan Project
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