# ASTR 100 (Miller) HOMEWORK ASSIGNMENTS

The homework assignments for the entire semester are given here. Problems in the boxes refer to problems from the text, Pathways to Astronomy. Extra credit problems are included below the box.

Always put your name and section number at the top of your homework!
Be sure to type or write neatly - we can not give credit for things we can not read.

## Homework #2 (25 Points) Due Tuesday Sep. 12

Unit 2, Problem 2; Unit 3, Problem 5; Unit 4, Problem 2; Unit 6, Problem 1; Unit 7, Problem 1.

Extra Credit (5 Points): Follow one of the SOLAR SYSTEM links from the main class web page (under Material to Help You out). Explore some of the sublinks. Write a paragraph summarizing what you find, and a paragraph describing what you learned (Use your own words!)

## Homework #3 (25 Points) Due Tuesday Sep. 26

Unit 10, Problem 1; Unit 14, Problem 1; Unit 16, Problem 1; Unit 18, Problem 2; Unit 20, Problem 3.

Extra Credit (5 Points): Feeling stressed? Slam some asteroids and comets into the Earth and see what happens on the "Solar System Collisions" webpage (Follow the Computer Programs - Practice link or go directly to the Impact page). Describe what happens -- and how often -- for asteroids of several different sizes (small, medium, large, HUGE!). Imagine a rocky asteroid moving at 25 km/s, how big does it have to be to create a magnitude 9.5 earthquake?

## Homework #4 (25 Points) Due Tuesday Oct. 10

Unit 33, Problem 3; Unit 34, Problem 1; Unit 40, Problem 4; Unit 42, Problem 1; Unit 44, Problem 3.

Extra Credit (5 Points): Explore the Astronomy JavaLab. Choose one of the Applets there and explore its function. Report on which one you chose and why, as well as what you learned.

## Homework #5 (25 Points) Due Tuesday Oct. 31

Unit 21, Problem 5; Unit 27, Problem 1; Unit 41, Problem 1; Unit 45, Problem 2; Unit 56, Problem 3.

Extra Credit (5 Points): Follow the artificial satellite link and use the resources you find to choose a man-made satellite to observe yourself. Then go out and watch it. (The International Space Station is very striking, if it passes within view.) Record and report the object you observed, the time and date of observation, the weather conditions at the time of observation, and the visual appearance of the object - both its brightness and how it appears to move along the sky.
Note: this requires some planning on your part, and many potentially observable satellites are not so easy to see in the Metro area because of light pollution.

## Homework #6 (25 Points) Due Tuesday Nov. 21

Unit 63, Problem 3; Unit 64, Problem 1; Unit 68, Problem 2; Unit 70, Problem 3; Unit 72, Problem 3.

Extra Credit (5 Points): Follow one of the STARS & OUR GALAXY links from the main class web page (under Material to Help You out). Explore some of the sublinks, and write a paragraph summarizing what you find, and a paragraph describing what you learned (Use your own words!)

## Homework #7 (25 Points) Due Tuesday Dec. 5

Unit 77, Problem 4; Unit 78, Problem 2; Unit 79, Problem 1; Unit 80, Problems 1 and 3.

Extra Credit (5 Points): Follow one of the OTHER GALAXIES links from the main class web page (under Material to Help You out). Explore some of the sublinks, and write a paragraph summarizing what you find, and a paragraph describing what you learned (Use your own words!)