Transcript Light Jeopardy review

Electomagnetic
spectrum
Visible
light
Doppler
Waves
Laws
Misc
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Radio waves
The lowest frequency of
electromagnetic radiation is
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It is both
Is electromagnetic radiation a
wave or a particle?
$600
Visible and radio
Two forms of
electromagnetic radiation that
penetrate the atmosphere best
are:
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Gamma rays
The part of the electromagnetic
spectrum with the shortest
wavelength is
$1000
White light is all the colors blended
together uniformly
What is white light?
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Rainbow
What is an example of a
classic continuous spectrum
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violet
The visible light with the
shortest wavelength is
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visible
What type of radiation can be
observed well from Earth’s
surface?
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red
Which color of electromagnetic
radiation has the longest
wavelength?
$1000
We don’t for sure. Since lightmust travelo
millions of light years, the light we see is
millions of years old.
How do we know that a star
in a distant galaxy is still
there?
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red
Objects we are moving away
from appear
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Doppler effect
When you hear a siren change
pitch as it approaches you
this is an example of
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No shift at all (not blue or red) so it will
appear yellow
The light from an object
moving from right to left will
exhibit
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blue
An object moving towards us
would appear
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You can give its radial velocity, either towards
or away from us.
What information can be
inferred about a star from its
Doppler shift?
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radio
What type of wave has the
lowest energy
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halved
If a waves frequency doubles
it wavelength is
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They both transfer energy.
Sound needs a medium, light travels in space
How are sound waves and
electromagnetic radiation
similar? How are they
different?
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Frequency times the wavelength
A wave’s velocity is the product of the
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Sound travels through a material medium,
and can not travel through a vacuum
Why can you hear a tree fall
in the forest but you can’t
hear me slam the space
capsule door in space?
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Photon
Individual packet of
electromagnetic radiation
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Spectroscopy
An analysis of the way atoms
absorb and emit light is
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Kelvin
Temperature scale that places
zero at the point where all
atomic motion ceases.
$800
fourth
According to Stefan’s Law:
The total energy radiated
by a black body is
dependent on the
_______________power of
its temperature
$1000
Wave
Does diffraction show wave
nature or Particle nature of
light?
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6
The distance between two crest
is 6 cm and the distance from
the median to the top of the
crest is 4 cm. what is the
wavelength?
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¼ or .25 Hz
A wave has a period of 4 seconds, what is it’s
frequency
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It’s temperature
The wavelength of an object’s
blackbody radiation is
dependent on?
$800
Stefan’s
If the sun’s temperature were
doubled, it would give off 16X’s
more energy is an example of what
law?
$1000
A few bright emission lines
What kind of spectrum would a
neon light give us?