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Worksheets

Optics

Total questions: 20

Worksheet time: 8mins

Name
Class
Date
1.

Light always travels in (a)   lines.

2.

Which of the following light frequencies travels the fastest in a vacuum? (Select all that apply)

a)

Infrared

b)

Visible

c)

X-rays

d)

Gamma

3.

Oppositely charged particles will

a)

Attract

b)

Repel

c)

Do nothing

4.

Dimensions for a point source are important.

a)

True

b)

False

5.

Total internal reflection only occurs when light tries to travels from a medium with a _____ index to ____ index

a)

lower to higher

b)

higher to lower

c)

same to same

6.

When light travels from a higher index (water) to a lower index (air), light will bend...

a)

toward the normal

b)

away from the normal

7.

The height of a wave from the undisturbed state is called

a)

frequency

b)

amplitude

c)

period

d)

crest

8.

Which type of light has the shortest wavelength?

a)

Radio

b)

Gamma

c)

Infrared

d)

Visible

9.

The _____ experiment shows that light acts like a particle

a)

diffraction

b)

interference

c)

photoelectric

10.

The period of a wave is

a)

time between crests

b)

number of waves per seconds

c)

height of the wave crests

11.

Frequency and wavelength are

a)

directly proportional

b)

inversely proportional

c)

not related

12.

Radiation requires a medium to transfer energy

a)

True

b)

False

13.

The force a charge exerts on another charge will ______ with distance

a)

increase

b)

decrease

c)

stay the same

14.

When an atom or molecule absorbs light , it might cause

a)

vibration

b)

rotatation

c)

electron excitation

d)

break it apart

e)

nothing to happen

15.

When light sources from multiple sources overlap, the area where all the shadows overlap is called

a)

umbra

b)

penumbra

16.

Pinhole cameras only work if the aperture is LARGE

a)

True

b)

False

17.

Pinhole camera create a(n) _____ image. Select all that apply.

a)

real

b)

virtual

c)

inverted

d)

upright

18.

The index of refraction is wavelength dependent.

a)

True

b)

False

19.

If we trace back reflected rays, the point they come together will create a _____ image.

a)

virtual

b)

real

20.

How would does this compare with a Kahoot Quiz?

4 lines