IB Physics Glossary
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is the distance to a star whose parallax angle is 1 arc-second. (d)
is color vision which occurs at normal light levels. Vision is aided by the three different cone cells, S (for short-wavelengths or blue), M (for medium-wavelengths or green) and L (for long-wavelengths or red).
of light occurs when the direction of the electric field oscillations is in the same plane. (d)
Potential divider rule
is a stored form of energy available to do work.
is the rate at which work is done. (d)
tells us how consistent repeated measurements are. A precise set of measurements are relatively closer together. An imprecise set of measurements are spread apart.
is the force per unit area. (d)