ess 102: lab 1 - fundamentals of lightearthweb.ess.washington.edu/space/ess102/lab1writeup.pdf · 1...

ESS 102: Lab 1 - Fundamentals of Light https://webcourse.ess.washington.edu:35131/moodle/mod/quiz/attem...

1 of 5 1/8/07 11:06 AM

ESS 102 Space and Space Travel, Winter 2007 You are logge d in as Wa lt Ha rris (Logo ut)

U WESS ▶ ESS 102 ▶ Quizzes ▶ Lab 1 - Fundamenta ls of Light ▶ A ttempt 1 Update this Quiz

1 Marks :--/3

You worked wi th your TA to develop a p lot to answer how the intensity of light changeswith dis tance. Which plot be low c losest resembles your plo t?

Inf o Res ults Pre view Edi t

Note: This quiz is not current ly availab le to your students

Preview Lab 1 - Fundamentals of Light

Start again


2 of 5 1/8/07 11:06 AM

answer. a. C

b. B

c. A

d. D

2 Marks :--/2

Choose oneanswer.

a. The intens ity decreases l inear ly wi th distance.

b. The l ight passes through a medium which causes exponent ialdecay of the intensity

c. Exponentia l decrease as 1 over R squared is a fundamental law ofphysics

d. The intens ity decreases as the square of the distance.

Why does the plot have this dependence?

3 Marks :--/2

The prism bends the light coming from the lamp, with the degree of bending dependent onthe color of the l ight. What colors did you see?

Submit

Submit


3 of 5 1/8/07 11:06 AM

Choose oneanswer.

a. red, yellow, blue

b. red, orange, yel low, green, blue, indigo, violet

c. red, yellow, green, v iolet

d. b lue only

e. red, green, blue, ind igo

4 Marks :--/2

Choose oneanswer.

a. red

b. v iolet

c. b lue

d. yellow

What color is bent the most by the prism in the previous question?

5 Marks :--/2

Choose atleast oneanswer.

a. When the lamp was at is lowest temperature, red was the primarycolor visible .

b. When the lamp was red it was at its hottest.

c. When the lamp was at its lowest temperatures the b lue colors hasfaded from sight.

d. The intens ity o f the different colors does not change withtemperature.

How does the intensity of the dif ferent colors change with temperature? More than oneanswer may be correct.

6 Marks :--/2

Choose atleast oneanswer.

a. u ltrav iolet

b. infrared

c. x-rays

d. gamma rays

What are the two types of invisib le radiation that was demonstrated in the lab? Chose al lthat apply.

Submit

Submit

Submit

Submit


4 of 5 1/8/07 11:06 AM

7 Marks :--/2

Choose oneanswer.

a. hair

b. shirt

c. shoes

d. face

When the infrared sensor was swept over a person, where was the most intense infraredradiation found?

8 Marks :--/2

Choose oneanswer.

a. computer screen

b. humans

c. overhead projector

d. f luorescent lights

What is the largest source of ult ravio let radiat ion in the room besides the Sun comingthrough the windows?

9 Marks :--/2

Look at the color of stars in the image. Which type is likely to be a strong source of UV?

Submit

Submit


5 of 5 1/8/07 11:06 AM

Choose oneanswer.

a. White-blue Stars

b. Greenish disk materia l

c. Red-Orange Stars

d. Redish disk material

10 Marks :--/2

Choose oneanswer.

a. h igher

b. lower

c. less v isible frequency

d. the same

Inf rared radiation has ________ f requency than v isible light?

11 Marks :--/2

Choose oneanswer.

a. longer

b. shorter

c. the same

d. a more invisible

Ult ravio let radiat ion has _______ wavelength than vis ible light .

Save without submitting Submit page Submit all and finish

Y ou ar e log ged i n as Walt Harri s (Lo gout)

ESS 102

Submit

Submit

Submit

ess 102: lab 1 - fundamentals of lightearthweb.ess.washington.edu/space/ess102/lab1writeup.pdf · 1...

Documents