# Homework # 1

## Homework # 1

• Submitted By: sofyshka55
• Date Submitted: 02/11/2015 11:35 AM
• Category: Science
• Words: 1137
• Page: 5

Homework 1 (Ch. 1-2)

1. Make five qualitative and five quantitative observations about the room in which you now sit.
Qualitative:
1. White walls
2. Green cabinets/drawers
3. Smells like grill cheese
4. Tile floor
5. Stainless steel kitchen appliances
Quantitative:
1. Five people in the kitchen
2. Three males and two females
3. Two dogs
4. Can of pop, cost \$.50
5. 6:56 p.m.

2. Describe how you would set up an experiment to test the relationship between completion of assigned homework and the final grade you receive in the course.
Well first you will make a hypothesis of what you think will happen if the homework grades are good or bad. After you made a hypothesis, you will have to test it by getting different people and ask them how they think they did on their homework and compare them to their grades.

3. As part of a science project, you study traffic patterns in your city at an intersection in the middle of downtown. You set up a device that counts the cars passing through this intersection for a 24-hour period during a weekday. The graph of hourly traffic looks like this.

a. At what time(s) does the highest number of cars pass through the intersection?
8 a.m.
b. At what time(s) does the lowest number of cars pass through the intersection?
12 a.m. and 10 p.m.
c. Briefly describe the trend in numbers of cars over the course of the day.
From 12 a.m to around 5 a.m. there is a low numbers of cars that pass through the intersection, then it picks up from 6 a.m. to 8 a.m. due to people driving to work and then it slowly starts to decrease to about 3 p.m. After 3 p.m. it increases again till 5 p.m. because of all the people driving back from work and then starts to decrease till 7 p.m. After 7 p.m. there are a few cars that pass the intersection till 11 p.m.
d. Provide a hypothesis explaining the trend in numbers of cars over the course of the day.
If the time is 6am-8am and 3pm-5pm, then the intersection will...