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Worksheets

units 22-24-26

Total questions: 14

Worksheet time: 6mins

Name
Class
Date
1.

a narrow beam of light, heat, etc.

(a)  

2.

the change in direction of a wave passing from one medium to another caused by its change in speed

a)

Retraction

b)

Refraction

c)

Reduction

d)

Recreation

3.

The dependence of the index of refraction on wavelength

a)

Refraction

b)

Interference

c)

Diffraction

d)

Dispersion

4.

the distance from the center of the lens to the point at which the image of a distant object is formed

(a)  

5.

the collection of focus points made by extensions of diverging or converging rays

a)

real image

b)

focal length

c)

virtual image

d)

focal point

6.

dark, thin material like plastic on which you can record images as photographs or as moving pictures

(a)  

7.

the act of making light waves move in one direction only, or mainly in one direction

a)

Polarization

b)

Scattering

c)

Absorption

d)

Grating

8.

optical component with a periodic structure that diffracts light into several beams travelling in different directions

a)

Polarization

b)

Scattering

c)

Absorption

d)

Grating

9.

is a scientific theory regarding the relationship between space and time

(a)  

10.

the quality or fact of happening or being done at exactly the same time

(a)  

11.

to spread through something and be present in every part of it

(a)  

12.

Several things work well together or can successfully exist together

a)

Compatible

b)

Comparable

c)

Competible

d)

Collaborative

13.

the “slowing down” of a clock as determined by an observer who is in relative motion with respect to that clock.

a)

General relativity

b)

Special relativity

c)

Time dilation

d)

Relativity

14.

the absorption and reradiation of light by the medium

a)

Grating

b)

Scattering

c)

Film

d)

Polarization