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61 Cards in this Set
- Front
- Back
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the velocities of a seismic wave depends on.. |
the type of material it travels through |
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seismic waves are classified as body waves and surface waves and ex of a body wave is: |
primary wave (p-wave) |
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the fastest seismic wave is a: |
primary wave (p wave) |
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motion of a p wave is: |
longitudinal |
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earths liquid and solid layers were discovered by studying the propagation of seismic waves through .. |
all of above |
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secondary waves can travel trough all areas of earth except : |
outer core |
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because S waves do not travel through earths outer core scientists inferred that the outer core is .. |
molten liquid |
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p- waves refract at the boundary between inner & outer core because: |
there’s a change of phase between inner and outer core |
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the source of all wave motion is: |
vibration |
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the time needed for one wave to make one complete cycle is it’s … |
period |
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the difference between successive identical parts of a wave is called its.. |
wavelength |
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a hertz is a … |
unit of frequency |
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a wave created by shaking a rope up and down is called a .. |
transverse wave |
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which of the following is NOT a transverse wave : |
sound |
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when two or more waves are at the same place at the same time the resulting effect is called .. |
interference |
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where can u touch a standing wave on a rope without disturbing the wave? |
at a node |
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when a sound source moves towards u what happens to the wave speed? |
it stays the same |
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the amplitude of a particular wave is 4.0 m. The top to bottom distance of the disturbance is.. |
8.0 m. |
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suppose a bug is jiggling up and down and swimming towards you at the same time. Compared to the frequency reaching you is.. |
higher |
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during a single period. the distance traveled by a wave is .. |
one wavelength |
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a sonic boom .. |
Is swept continuously behind a plane flying faster than the speed of sound |
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a doppler effect occurs when a source sound moves |
both A and B |
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a doppler effect occurs when a source sound moves |
both A and B |
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the law of reflection says that.. |
the angle of reflection from a mirror equals the angle of incidence |
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a doppler effect occurs when a source sound moves |
both A and B |
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the law of reflection says that.. |
the angle of reflection from a mirror equals the angle of incidence |
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refraction is caused by.. |
different wave speeds |
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when a light beam emerges from water into air the average light speed |
increases |
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the spectrum produced by a prism or a raindrop is evidence that the average speed of light in the matters .. |
color |
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which of the following is consequence of the refraction of light? |
all of the above |
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which of the following is consequence of the refraction of light? |
all of the above |
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In a curved optical fiber light.. |
internally reflects in a succession of straight line paths |
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which of the following is consequence of the refraction of light? |
all of the above |
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In a curved optical fiber light.. |
internally reflects in a succession of straight line paths |
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a rainbow nicely illustrates an example of light |
both a and b |
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which of the following is consequence of the refraction of light? |
all of the above |
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In a curved optical fiber light.. |
internally reflects in a succession of straight line paths |
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a rainbow nicely illustrates an example of light |
both a and b |
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a secondary rainbow is dimmer than a primary rainbow because.. |
there is an extra reflection inside the water drops |
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which of the following is consequence of the refraction of light? |
all of the above |
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In a curved optical fiber light.. |
internally reflects in a succession of straight line paths |
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a rainbow nicely illustrates an example of light |
both a and b |
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a secondary rainbow is dimmer than a primary rainbow because.. |
there is an extra reflection inside the water drops |
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the energy of a photon is directly proportional to its … |
frequency |
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the photoelectric effect occurs when.. |
high frequency light shines on certain metal surfaces |
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the photoelectric effect best demonstrates the |
particle nature of light |
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the photoelectric effect best demonstrates the |
particle nature of light |
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in the photoelectric effect, the brighter the illuminating light on a photo sensitive surface the greater the… |
number of ejected electrons |
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a photocell can be activated with blue light but not with red light. this is bc blue light has .. |
a higher frequency than red light |
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the photoelectric effect occurs when the incident light beam is… |
either dim or bright |
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the photoelectric effect occurs when the incident light beam is… |
either dim or bright |
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which of the following photons have the greatest energy? |
ultra violet |
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the photoelectric effect occurs when the incident light beam is… |
either dim or bright |
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which of the following photons have the greatest energy? |
ultra violet |
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the number of electrons ejected in the photoelectric effect depends on the light beams.. |
intensity |
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the photoelectric effect occurs when the incident light beam is… |
either dim or bright |
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which of the following photons have the greatest energy? |
ultra violet |
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the number of electrons ejected in the photoelectric effect depends on the light beams.. |
intensity |
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when an electron in an atom emits a photon the, |
electrons energy decreases by exactly the energy of the photon |
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the ratio of a photons energy to its frequency is… |
plancks constant |
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the photoelectric effect is more effective with violet light than red light because the photons of violet light… |
deliver more energy to the material |
