physics Flashcards
(23 cards)
plane mirror
same size
upright
behind mirror, same distance
virtual
convex/converging mirror
smaller
upright
behind mirror, closer
virtual
concave/diverging (beyond c)
smaller
inverted
in front mirror, closer
real
concave/diverging (at c)
same
inverted
in front mirror, same
real
concave/diverging (between c and f)
bigger
inverted
in front mirror, farther
real
concave/diverging (at f)
no clear image
concave/diverging (between f and v)
larger
upright
behind mirror, farther
virtual
converging lenses (beyond 2f)
smaller
inverted
“behind” lens, closer
real
converging lenses (between 2f and f)
bigger
inverted
“behind” lens, farther
real
converging lenses (between f and lens)
bigger
upright
“in front” lens, farther
virtual
types of electromagnetic waves
radio waves, microwaves, infrared light, visible light, ultraviolet light, x-ray, gamma ray
electromagnetic wave
how energy travels through space
electromagnetic spectrum
arrangement of electromagnetic waves according to wavelength and frequency
visible spectrum
continuous sequence of colours that all form white light
incadescence
wire heated until glowing, ex flood lights
fluorescence
exposure of mercury vapour with inert gas to produce UV light, ex school bulb
phosphorescence
light emitted by exposure to UV light, continues to glow without UV, ex glow-in-the-dark after charging in the Sun
chemiluminescence
emit through chemical reaction, ex glowsticks
bioluminescence
emit through living organisms, ex jellyfish
electric discharge
highly heated gas to create yellow light, ex street lamps
light-emitting diode
electronic device that produces light when electricity passes through it, ex christmas lights
less dense to denser medium
towards medium
dense to less dense medium
away from medium
