Light
& Optics
REVIEW
FOR MID UNIT ASSESSMENT
Name 3
materials that are transparent.
Name 3
materials that are translucent.
Name 3
materials that are opaque.
Describe
the shadow formed when an object is far away from the light source.
Describe
the shadow formed when an object is close to the light source.
What
happens to light rays when it hits a translucent surface?
Why
can’t you see an image of a person through a frosted glass bathroom window?
What
would happen to the intensity of sunlight if Earth were twice as far from the
Sun?
What is
reflection? State the law of reflection.
Name 3
natural light sources
Name 3
artificial light sources.
What is
light?
What
does brightness, or intensity, indicate about how much energy a surface will receive?
What
type of light source is the emission of visible light by a hot object?
What is
the energy pathway for an incandescent light?
What are
the advantages of fluorescent lights?
Name 3
examples of bioluminescence.
What
does luminous mean?
What
does non-luminous mean?
How can
you prove that light travels in straight lines?
What is
the ray model based on?
What
happens when light reflects from a rough surface?
Describe
the relationship between the distance between the mirror and the object and the
distance between the mirror and the image.
Describe
the image formed by a convex mirror.
What
type of mirror is the sideview mirror on a car?
What
happens when light travels from one medium to another?
Why does
light bend when it crosses the boundary between 2 mediums?
What is
refraction?
If light
from outside travels through a glass window, which way does the light bend?
What are
the mirages that you often see when driving?
Why does
a diamond ring at the bottom of a pool appear to be in a position different
from the actual location?
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