PhysicsLAB: Famous Discoveries and Experiments

Match the correct description to each scientist.

After choosing your best answer, click on the arrow and take a moment to investigate the accompanying hyperlinked pages where each important discovery or experiment is described in greater detail.

	Neils Bohr

	James Chadwick

	A. H. Compton

	Davisson-Germer

	Louis de Broglie

	Albert Einstein

	Franck-Hertz

	Werner Heisenberg

	Michelson-Morley

	R. A. Millikan

	Wolfgang Pauli

	Max Planck

	Ernest Rutherford

	Rydberg-Ritz

	J. J. Thomson

experimentally discovered the charge to mass ratio of cathode rays
experimentally discovered the neutron
experimentally confirmed that the fundamental electric charge (e) was quantized
experimentally verified the existence of matter waves
explained the photoelectric effect
proposed that blackbody radiators emit quantized energy
developed the planetary atomic model to explain atomic spectra
experimentally confirmed that complicated atoms also have discreet energy levels
quantified the uncertainty of a particle's instantaneous position vs its momentum
developed a mathematical relationship relating the frequencies of spectral lines
determined that particles have a wave nature
experimentally verified that photons have momentum
experimentally discovered the existence of the atomic nucleus
explained the incompressibility of atoms
experimentally established that the speed of light is an invariant