IB Physics Glossary
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Parallel plates |
Parsec is the distance to a star whose parallax angle is 1 arc-second. (d) | |
Phase difference | |
Photopic vision 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). | |
Polarization of light occurs when the direction of the electric field oscillations is in the same plane. (d) | |
Potential divider rule is used to calculate the potential difference which is shared between components, R1 and R2, placed in series: ![]() ![]() | |
Potential energy is a stored form of energy available to do work. | |
Power is the rate at which work is done. (d) | |
Precision tells us how consistent repeated measurements are. A precise set of measurements are relatively closer together. An imprecise set of measurements are spread apart. | |
Pressure is the force per unit area. (d) | |