Mirrors/Lenses
Reflection/Refraction
What is light?
100
What type of lens is this?
Convex lens.
100
What do you call it when light bounces off of an object?
Reflection.
100
True or false: light is a form of energy?
True.
200
What are the three types of mirrors?
Plane, convex, and concave.
200
________ is light bending as it enters a new medium.
Refraction
200
Name two examples of natural sources of light.
I.e. sun, fire, lightning, bioluminescent animal.
300
Convex mirrors ____________ light.
diverge
300
Which angle is the angle of incidence?
Angle C
300
Name an artifical source of light.
Incandescent, fluorescent, phosphorescent, etc.
400
Concave lenses ___________ light.
diverge
400
Identify this type of mirror.
Convex mirror.
400
What happens when an opaque object blocks a light source?
A shadow is formed.
500
These lenses are thinner at their center.
Concave lens.
500
What is a smooth and flat mirror called?
A plane mirror.
500
List the three different types of light bulbs from least efficient to most efficient.
Incandescent --> Fluorescent --> LED
600
These lenses are used in magnifying glasses and projectors.
Convex lenses.
600
Light rays diverge after passing through what type of lens?
Concave lens.
600
Which types of materials can light travel through?
Translucent and transparent.
700
What images do convex mirrors produce?
The image is right side-up and stretched.
700
Why does refraction happen?
Refraction happens because waves travel at different speed in different media.
700
Which type of electromagnetic wave can we see?
Visible light.
800
What images do concave mirrors produce?
The image is upside-down.
800
What do you get when light rays converge?
Focal point.
800
In grade 8 we learn about the wave model of light, what is the other model of light?
The particle model of light.
900
What kind of mirrors are used in cars?
Conevx mirrors.
900
When an object is placed close enough to a concave mirror (in front of focal point), what kind of image is produced?
Right side-up image that is larger than the actual object.
900
What is bioluminescence?
When living organisms emit light.
1000
These lenses produce upside down images when behind the focal point.
Convex lenses.
1000
What happens to a light ray when it enters a more dense medium (i.e., air to water)
A light ray refracts and bends towards the normal.
1000
Ms Clark is the ______ _______ _______.
best science teacher