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Wavelength The distance from crest to crest
or trough to trough of an electromagnetic wave (see
electromagnetic radiation) or other wave.
Weak Force
The interaction that controls
radioactive decay.
White Light
Visible light that includes all
colors and, therefore, all visible wavelengths.
Watt
Unit of power, one joule per
second.
Wavelength
Distance between corresponding
points on two successive waves.
Wave Pulse
Single disturbance moving through
a medium or field.
Weak Boson: particle that carries
or transmits the weak interaction of force.
Weak Interaction
Force involved in beta decay of
the neutron and atomic nuclei; one aspect of the electroweak
force.
Weight
Force of gravity of an object.
Weightlessness
Object in freefall, on which only
the gravitational force acts.
Wilson Cloud Chamber
Chamber containing supersaturated
vapor through which ionizing radiation leaves trails of visible
droplets.
Work
Product of force and displacement
in the direction of the force.
Work Function
Energy needed to remove an
electron from metal.
Work Energy Theorem
Work done on object is equal to the change in its kinetic energy.
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