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CPO-Hsu-Foundations of Physical Science 2/e (Homework)

James Finch

Physical Science, section 1, Fall 2010

Instructor: Dr. Friendly

Current Score: 9/12

Due: Sunday, August 22, 2010 18:00 EDT

About this Assignment

Question
Points
1 2 3 4 5
4 3 1 1 0/3
Total
9/12

Description

Here are some textbook questions from Foundations of Physical Science 2/e by Tom Hsu and published by CPO Science. Click here for a list of all of the questions coded in WebAssign.

Question 1 is one of the Problems from the end of chapter 2, requiring the student to read a graph.

Question 2 is a Concept Review question from the end of chapter 3 in multiple answer format.

Question 3 is an Applying Your Knowledge numeric question from the end of chapter 4.

Question 4 is a Vocabulary Review question from the end of Chapter 6 in a matching question format.

Question 5 is a Skill Sheet exercise from Skill Sheet 17-A from the Investigations Manual.


Instructions

This demo assignment allows many submissions and allows you to try another version of the same question for practice.



1. 4/4 points All Submissions Notes Question: CPO-FPS2 2.P.008.
Question part
Points
Submissions
1 2 3 4
1 1 1 1
1/50 1/50 1/50 1/50
Total
4/4
 
Use the graph below to predict the speed of the car at the following distances.
20 cm
Enter a number.
Your answer is correct. cm/sec
35 cm
Enter a number.
Your answer is correct. cm/sec
70 cm
Enter a number.
Your answer is correct. cm/sec
90 cm
Enter a number.
Your answer is correct. cm/sec

2. 3/3 points All Submissions Notes Question: CPO-FPS2 3.CR.011.
Question part
Points
Submissions
1 2 3
1 1 1
3/50 1/50 1/50
Total
3/3
 
Name a unit for measuring each of the things below. (Select all that apply.)
(a) momentum

Your answer is correct.



(b) acceleration

Your answer is correct.



(c) distance

Your answer is correct.




3. 1/1 points All Submissions Notes Question: CPO-FPS2 4.AYK.003.
Question part
Points
Submissions
1
1
1/50
Total
1/1
 
The block and tackle machine on a sailboat can help a sailor raise her mainsail. Without a machine, she needs 500 newtons of force to raise the sail. If the block and tackle gives her a mechanical advantage of 5, how much input force must be applied to raise the sail?
Enter a number.
Your answer is correct. N


4. 1/1 points All Submissions Notes Question: CPO-FPS2 6.VR.002.
Question part
Points
Submissions
1
1
1/50
Total
1/1
 
Match the following terms with the correct definition. There is one extra definition in the list that will not match any of the terms.
electric force1. a buildup of charge on an object or material
electroscope2. the pushes and pulls that electric charges exert on each other
electric charge3. an instrument that can detect, and sometimes measure the amount of, electrical charges
coulomb4. an object that has equal amounts of positive and negative charges
static electricity5. a unit used in measuring the amount of charge
 6. property of matter responsible for electrical events; it has two forms, positive and negative


Your answer is correct.

5. –/3 points Notes Question: CPO-FPS2 17.SS.A.03.
Question part
Points
Submissions
1 2 3
0/1 0/1 0/1
0/50 0/50 0/50
Total
0/3
 
Using density to find volume If you know the density of a substance and the mass of a sample, you can find the volume of the sample. This time, you will rearrange the density equation to find volume.
text(volume)=(text(mass))/(text(Density))
Sample problem: The density of lead is 11.3 g/cm3. Find the volume of a 525 gram block of lead. To solve this problem, divide the mass of the block by the density of lead.
text(volume)=(525 text( g))/(11.3 text( ) (text(g))/(text(cm)^3))
The volume of the block is 46.5 cm3.

Try these problems on your own.
(a) The density of cork is 0.24 g/cm3. What is the volume of a 252 gram piece of cork?
Enter a number.
 cm3
(b) The density of gold is 19.3 g/cm3. What is the volume of a 579 gram bar of pure gold?
Enter a number.
 cm3
(c) The density of mercury is 13.6 g/mL. What is the volume of a 145 gram sample of mercury?
Enter a number.
 mL

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