2411365
Descrição
Quiz por Olivia Gibbs, atualizado more than 1 year ago
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Criado por Olivia Gibbs
mais de 9 anos atrás
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|
Questão 1
Questão
When a virtual image is created in a plane mirror
Responda
-
the image is upright.
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the image is located behind the mirror.
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reflected rays diverge.
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ALL OF THE ABOVE
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NONE OF THE ABOVE
Questão 2
Questão
An echo occurs when sound
Responda
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is transmitted through a surface.
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is reflected from a distant surface.
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changes speed when it strikes a distant surface.
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ALL OF THE ABOVE
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NONE OF THE ABOVE
Questão 3
Questão
Diffuse reflection occurs when the size of surface irregularities
Responda
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larger than 1 m in diameter.
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large compared to the wavelength of the light used.
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small compared to the wavelength of the light used.
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larger than 1 cm in diameter.
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NONE OF THE ABOVE
Questão 4
Questão
It is difficult to see the roadway from a car on a rainy night because the road surface
Responda
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is obscured by the rain itself.
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that is normally a diffuse reflector when dry becomes a mirror surface when wet.
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absorbs the light more when wet.
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scatters light in all directions.
Questão 5
Questão
Refraction is caused by
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different wave speeds.
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more than one reflection.
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displaced images.
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bending.
Questão 6
Questão
You can hear noises a long distance away over water at night because
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of lowered temperature.
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water conducts sound better at night.
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sound is reflected off water more efficiently at night.
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of refraction of sound in air.
Questão 7
Questão
The average speed of light is greatest in
Responda
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orange glass.
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blue glass.
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red glass.
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green glass.
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IT IS THE SAME IN ALL OF THE ABOVE
Questão 8
Questão
A mirage can occur
Responda
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when cooler air is above hotter air.
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when there's a layer of hot air close to the ground.
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on a hot day.
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ALL OF THE ABOVE
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NONE OF THE ABOVE
Questão 9
Questão
The critical angle for a light from the bottom of a swimming pool shining upward toward the pool's surface is the angle
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where light is refracted so it just skims the pool surface.
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43 degrees.
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at which all light is refracted out of the pool.
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42 degrees.
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at which some light is reflected from the surface.
Questão 10
Questão
A person standing waist-deep in a swimming pool appears to have short legs because of light
Responda
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refraction.
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interference.
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diffraction.
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reflection.
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absorption.
Questão 11
Questão
Different colors of light travel at different speeds in a transparent medium. In a vacuum, different colors of light travel at
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the same speed.
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different speeds.
Questão 12
Questão
The spectrum produced by a prism or a raindrop is evidence that the average speed of light in the material depends on the light's
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transmission qualities.
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col.or.
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wave nature.
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particle nature.
Questão 13
Questão
The shortest plane mirror in which you can see your entire image
Responda
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is half your height.
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is twice your height.
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is equal to your height.
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cannot be determined.
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depends on how far the mirror is from you.
Questão 14
Questão
A beam of light travels fastest in
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air.
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water.
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plastic.
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glass.
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ITS AVERAGE SPEED IS THE SAME IN EACH OF THE ABOVE
Questão 15
Questão
Which of the following is a consequence of the refraction of light?
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rainbows
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mirages
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internal reflection
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ALL OF THE ABOVE
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NONE OF THE ABOVE
Questão 16
Questão
Stars twinkle when seen from Earth at night. When seen from the moon, stars
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twinkle less.
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twinkle more.
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don't twinkle.
Questão 17
Questão
In a curved optical fiber, light
Responda
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gains energy in each internal reflection.
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internally reflects in a succession of straight-line paths.
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bends and follows the curve of the fiber.
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scatters in random directions from the fiber's inner surface.
Questão 18
Questão
A rainbow nicely illustrates an example of light
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internal reflection.
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refraction.
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internal reflection and refraction.
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neither internally reflecting nor refracting.
Questão 19
Questão
In a double rainbow, the outermost color in the outermost bow is
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blue.
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green.
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red.
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ANY OF THESE AT DIFFERENT TIMES
Questão 20
Questão
A secondary rainbow is dimmer than a primary rainbow because
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only large drops produce secondary rainbows.
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sunlight reaching it is less intense.
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there is an extra reflection inside the water drops.
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it is a reflection of the primary rainbow.
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NONE OF THE ABOVE
Questão 21
Questão
When seen from an airplane, a rainbow sometimes forms a complete circle. When this happens, the plane's shadow is
Responda
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in the center of the rainbow.
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totally outside the rainbow.
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in the upper part of the rainbow.
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nowhere. There is no shadow.
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in the lower part of the rainbow.
Questão 22
Questão
Ninety percent of light incident on a certain piece of glass passes through it. How much light passes through two pieces of this glass?
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81%
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85%
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89%
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90%
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80%
Questão 23
Questão
The law of reflection says that all light reaching a boundary between two surfaces is reflected.
Responda
- True
- False
Questão 24
Questão
When you look at the image of a candle in a plane mirror, you see a real image.
Responda
- True
- False
Questão 25
Questão
Diffuse reflection occurs when light is reflected in many directions from a rough surface.
Responda
- True
- False
Questão 26
Questão
Reflection occurs when one pat of a wave travels more slowly than another part.
Responda
- True
- False
Questão 27
Questão
The critical angle is the angle at which light just grazes the surface of a substance.
Responda
- True
- False
Questão 28
Questão
Total internal reflection occurs when a light ray hits a surface at an angle greater than the critical angle.
Responda
- True
- False
Questão 29
Questão
When a wave reaches a boundary between two media, in most cases some of the wave is reflected and some is refracted.
Responda
- True
- False
Questão 30
Questão
A line that represents the position of a wave crest is called a wave front.
Responda
- True
- False
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