IB Physics Glossary
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is a charged coupled device such that the amount of charge that builds up on one of its pixels is proportional to the light intensity falling on the pixel.
The photoelectric effect is responsible for conversion of photons energy to electron energy.
is possible if the size of an image covers at least two pixels.
CD/DVD pit depth
Chandrasekhar core limit
equals 1.4 solar masses for the core of a (super) red giant.
Low mass stars: core mass < 1.4 solar masses
Red giant -> Planetary nebula -> White dwarf
Helium burns and fuses in the core into carbon and oxygen.
High mass stars: core mass > 1.4 solar masses
Super Red Giant -> Supernova -> Neutron star or Black Hole
Silicon burns and fuses in the core into iron.
Coefiicient of voume expansion
a. highly elliptical orbits;
b. large orbital radii beyond planets;
c. orbit are in many different planes. (d)
Conductive hearing loss
occurs when the air conduction thresholds (middle ear) show a hearing loss but the bone conduction thresholds (cochlea) are normal. Reasons include
A material that allows the flow of electric charge through it.
Conduction is the flow of charge (free electrons) from atom to atom within a material.