Refraction and Lenses Answers

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6

Use the drop down-menus to complete the sentences.

Answers:
When parallel light rays exit a concave lens, they .:diverge
When parallel light rays exit a convex lens, they .:converge
7

✔ slowerfasterthe same

A
✔ slower
B
faster
C
the same
8

✔ towardaway fromparallel to

A
✔ toward
B
away from
C
parallel to
9

Use the drop-down menus to identify whether each description represents a convex lens, a concave lens, or both.

Answers:
Selection 1:both
Is thicker in the middle than near the edges::convex lens
Creates only a right-side up image::concave lens
Causes light rays passing through it to refract::both
11

Which statements describe the image produced by a concave lens? Check all that apply.

A
The image is always right-side up.
B
The image is real.
C
The image is larger than the object.
D
The image is upside down.
E
The image is virtual.
12

What are the characteristics of a virtual image? Check all that apply.can be projected onto a screencan only be seen while looking through a lenscan be captured on cameramay appear larger than the objectappears to come from behind the lensappears upside down

A
can be projected onto a screen
B
can only be seen while looking through a lens
C
can be captured on camera
D
may appear larger than the object
E
appears to come from behind the lens
F
appears upside down
13

The object shown is made of glass. What is it called?

A
convex lens
B
pyramid
C
prism
D
concave lens
14

When you go to the movies, a strong light shines through the film and then through one or more lenses. The image you see on the screen is much larger than the one on the film.What kind of image are you looking at on the movie screen?

Answer:

The image on the movie screen is a real image because it can be projected onto a surface. It is also an enlarged image because it is much larger than the original film.

15

Sample Response: An image that can be projected on a screen is a real image. A real image can be larger than the original object. What did you include in your response? Check all that apply.An image that can be projected onto a screen is a real image. Only a real image can be larger than the original object.

A
An image that can be projected onto a screen is a real image.
B
Only a real image can be larger than the original object.

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