Mirror Chapter Lesson

Mirror vs Lenses Discussion: Part 1

Coach Bridges Science Class
Fall 2024-25

Yesterday we determined that the difference between shiny and diffuse reflection and how a mirror is defined.

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​How Mirror Reflect off objects

Multiple Choice

What type of object can be described as a mirror?

• A painting that depicts a landscape.
• A reflective surface, such as a glass mirror.
• A window that lets in light.
• A piece of furniture with no reflective properties.

Multiple Choice

What is the difference between a regular and diffuse reflection?

• Regular reflection produces clear images, while diffuse reflection scatters light and results in unclear images.
• Regular reflection is only seen in mirrors, whereas diffuse reflection is seen in all materials.
• Diffuse reflection creates clear images, while regular reflection scatters light.
• Regular reflection only occurs on smooth surfaces, while diffuse reflection happens on rough surfaces.

Multiple Choice

Any object that can form an image is considered a mirror.

• True

• False

​We determined that a plane mirror is flat and creates a virtual image. The image is not truly there but is a reflection we think is there. We know this because the picture is inverted or not in the right direction.

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Plane Mirror Defintion

Multiple Choice

A plane mirror is reflective because it is considered:

• It is considered smooth and reflective.
• It is considered opaque.

• It is considered transparent.

• It is considered translucent.

Multiple Choice

Why is the image seen in a mirror considered a virtual image?

• The image seen in a mirror is not located in the area where it is seen.

• The image appears in front of the mirror surface.
• The image is formed by actual light rays converging.
• The image can be projected onto a screen.

a) They curve inward
b) When the light hit the surface, they converge.
c) Make sure to know the listed terms:
focal point
focal length
optical axis

​Concave mirrors

Multiple Choice

How does a concave mirror reflect light?

• A concave mirror reflects light by bending rays away from each other.
• A concave mirror reflects light by converging parallel rays to a focal point.
• A concave mirror reflects light by absorbing all incoming rays.
• A concave mirror reflects light by scattering rays in all directions.

Multiple Choice

What is the difference between the focal point and the focal length of a concave mirror?

• The focal point and focal length are the same measurement.
• The focal length is where light diverges, not converges.
• The focal point is a location where light converges, while the focal length is the distance from the mirror to that point.
• The focal point is the distance from the mirror to the light source.

They create real or virtual images which converge in the mirror. This makes the picture closer and bigger.

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Concave mirror image

Multiple Choice

What determine what type of image a concave mirror makes?

• The position of the object relative to the focal point.
• The color of the mirror's surface.
• The size of the mirror.
• The type of light source used.

​Real images: outside the focal point (inverts it)
Virtual images: inside the focal point (makes the image look bigger than it actually is)

Concave real and virtual images

Match

Match the following descriptions with their position in concave mirror.

• Real image

• Virtual image

• Inverted Picture

• Smaller Picture

• Larger Picture

Outside the focal point

Inside the focal point

Outside the focal point

Outside the focal Point

Inside the focal point

• Outside the focal point

• Inside the focal point

• Outside the focal point

• Outside the focal Point

• Inside the focal point

a) They curve outward.
b) They diverge apart creating a small object that is farther away.
c) They only make virtual objects because the image is smaller.

​Convex mirrors

Multiple Choice

How does the shape of a convex mirror create a smaller image?

• The shape of a convex mirror creates a smaller image by causing light rays to diverge, resulting in a virtual image that appears smaller than the actual object.
• The curvature of a convex mirror focuses light rays to form a real image.
• Convex mirrors reflect light rays in parallel, creating a larger image.
• The shape of a convex mirror magnifies the image, making it appear larger.

Match

Match the following description with its the mirror that creates it. Choose either concave, convex or both.

• Real image

• Virtual image

• Curves inward

• Curves Outward

• Reflects light

Concave

Both

Concave

Convex

Both

• Concave

• Both

• Concave

• Convex

• Both