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Lasers And Waves

Total questions: 23

Worksheet time: 12mins

Name
Class
Date
1.

What does laser stand for?

a)

Light. Amplification. (by) Stimulated. Emission. (of) Radiation.

b)

Large. Amphibic (and) Snakelike. Energy. Rays.

c)

Light. Amplitude, Source. (by) Electromagnetic.

Rays.

d)

Look. A. Stupid. Elephant. (is) Raining.

2.

What is NOT a property of energy?

a)

Energy can not be created or destroyed

b)

Energy can be transferred or shared

c)

Energy is a push or a pull

d)

Energy can cause changes

3.

What is the speed of a wave that has a wavelength of 4 and a frequency of 2?

a)

1/2

b)

2

c)

8

d)

6

4.

What is the wavelength of a wave with a frequency of 2 and a speed of 8?

a)

4

b)

1/2

c)

6

d)

2

5.

What is the frequency of a wave with a wavelength of 4 and a speed of 8?

a)

2

b)

4

c)

1/2

d)

6

6.

As a wavelength of a wave increases, its speed will

a)

Decrease

b)

Increase

c)

Remain the same

d)

Explode

7.

Based on the equation Speed=Wavelength x Frequency, what is the equation for wavelength?

a)

Wavelength = Speed/Frequency

b)

Wavelength= Frequency over Speed

c)

Wavelength= Node/Frequency

d)

Wavelength= Frequency/Node

8.

How to measure wavelength?

a)

Crest to Crest or Trough to Trough

b)

Trough to Node or Node to Trough

c)

Crest to Node or Node to Crest

d)

Crest to Trough or Trough to Crest

9.

What is A?

a)

Amplitude

b)

Trough

c)

Crest

d)

Node

10.

What is B?

a)

Wavelength

b)

Crest

c)

Node

d)

Amplitude

11.

What is D?

a)

Trough

b)

Crest

c)

Node

d)

Wavelength

e)

Amplitude

12.

What is C?

a)

Crest

b)

Trough

c)

Node

d)

Wavelength

e)

Amplitude

13.

What is the red line called?

a)

Node

b)

Crest

c)

Trough

d)

Amplitude

e)

Wavelength

14.

What is the unit for frequency?

a)

Hz

b)

m/s

c)

m

d)

mph

15.

What is the symbol for wavelength?

a)

f

b)

𝝀

c)

v

d)

S

16.

What factors do not affect wave speed at Mavericks?

a)

Type of fish in the water

b)

Wind speed

c)

Fetch

d)

Duration of wind

17.

Which wave has more energy>

a)

A

b)

B

18.

Light with identical waves that travel together, so the peaks and troughs of the waves all line up (definition)

a)

Coherent light

b)

LED light

c)

Sunlight

d)

Visible light spectrum

19.

What is a laser?

a)

Narrow, focused beam of same-color light

b)

Fiber optic light that glows when in contact with GAMMA

c)

RGB light that is used for x-ray machines

d)

Gamma light that is made of concentrated gamma rays

20.

What is NOT a use for lasers?

a)

Transmitting data signals

b)

Writing information on CD's and DVD's

c)

Scanning barcodes

d)

Sensing UV light

21.

What is total internal reflection?

a)

When a wave bends so much at the interface between media that it reflects back into the original medium instead of refracting out into the new medium

b)

An electromagnetic wave with slightly more energy and shorter wavelength than ultraviolet light; waves that are commonly used for imagining structures inside the body

c)

The collection of closely spaced light reflections off many surfaces

d)

The changing of a wave’s speed as it travels into a medium

22.

What is an optical fiber?

a)

A specially designed transparent fiber that transmits light over long distances by total internal reflection

b)

A regular pattern of motion

c)

A device that transforms one form energy into anotehr

d)

An intsrument that can detect and record waves

23.

What is the wavelength?

a)

3

b)

6

c)

1.5

d)

4