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science
Reflection And Refraction
1) Refraction happens when light______
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bends as it enters a new medium
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bounces back when it hits a surface
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by a substance
Which of these is not a type of lens?
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concave
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convex
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plane
Which one of these describes a lens that causes light to come to together at a single point?
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concave
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opaque
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convex
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translucent
Choose the word or words that correctly describe each object and how light behaves in the situation.
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Opaque, reflection
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Transparent
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Translucent, passes through
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a) Transparent, passes through, refraction
Identify the following image as or refraction.
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Refraction
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Reflection
Identify the following image as or refraction.
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Refraction
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Reflection
Which type of object blocks all light from going through?
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Translucent
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Opaque
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Transparent
Which type of object scatters light as it passes through an only allows part of the light to shine through?
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Opaque
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Translucent
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Transparent
Light shines clear through objects that are
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Translucent
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opaque
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Transparent
The color that you see is the color that is ____.
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refelcted
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absorbed
If all light waves are reflected off an object, what color do we see?
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Red
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White
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Black
If all light waves are absorbed by an object, what color do we see?
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Blue
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Black
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White
Why does the straw appear to be bent?
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light is reflected
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light is absorbed
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light is turned
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light is refracted
What do we call a material that light can travel through?
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air
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water
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medium
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pathway
What is a repeating disturbance or vibration that transfers or moves energy from place to place?
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Medium
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Wave
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Compression
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Rarefaction
The illustration shows a light ray striking an object.In the illustration, the light ray striking the object is-
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absorbed
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stopped
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reflected
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refracted
Why does the lower part of the child appear so much different in size from the upper part?
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The light rays that travel through water and then into air are refracted.
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The light rays that travel through water and then into air are enlarged.
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The light rays that travel through air and then into water are reflected.
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The light rays that travel through air and then into water are reduced.
What is the angle of reflection equal to?
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The angle of refraction
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The angle of incidence
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The angle of absorption
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The angle of light
What might explain why light travels in a straight line?
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If there is nothing to interfere with light waves, they should travel in a straight line.
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Light waves will always travel in a straight line, even if they come into contact with another object.
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Light waves don't travel in a straight line.
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Light waves travel in a straight line because sound waves travel in a straight line.
What is the angle of incidence?
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The angle at which light bends in water.
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The angle at which light hits a surface.
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The angle at which light is absorbed by an object.
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The angle at which light bounces off a surface.
According to the Law of reflection, a light ray striking a mirror
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continues moving through the mirror in the same direction
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moves into the mirror at a slightly different angle
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bounces off the mirror toward the direction it came from
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bounces off the mirror at the same angle it hits.
Glass has a _____________ index of refraction than air.
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Equal
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Greater
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Less
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Impossible to say
What is the angle of reflection (θr) in the image?
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56o
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90o
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124o
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34o
Light bending as it passes through a rain drop is an example of...
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Refraction
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Reflection
A beam of light bends when it passes from air into water, and more when it passes from water into glass. What can you conclude from this fact?
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Air is denser than glass
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Water is denser than glass
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Glass is denser than water
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Air is denser than water
A light ray is incident from water to air. Which of the refracted rays is correct?
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A
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B
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C
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D
A ray of light travels from air into a glass block.Which diagram correctly shows the path of the ray through the glass block?
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A
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B
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C
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D
Three students stand 2 m apart in front of a plane mirror which is 3 m long.Student Y is standing opposite the mid-point of the mirror.How many students can see the images of the other two?
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0
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1
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2
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3
Density is...
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the amount of mass in an object
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the amount of space an object takes up
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the amount of mass in a given space
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the weight of an object
The line 90 degress through the refracting or reflecting surface is called?
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Medium
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Normal
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Incidence
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Reflection
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