HOMEWORK ANSWERS
Devil[pic]Physics
Baddest Class on Campus
GIANCOLI READING ACTIVITY
Section 4-7
1. Objectives for Lesson 4-7, Solving Problems with Newton’s Laws: Vector Forces and Free-Body Diagrams,
a. SC.912.P.12.3: Interpret and apply Newton's three laws of motion. High
b. Use vector addition to find the net force on an object and relate it to the resultant acceleration.
c. Draw free-body/force diagrams of an object or collection of objects.
d. Use free-body/force diagrams to analyze forces on an object.
e. Appreciate how pulleys can reduce the amount of force required to lift an object.
2. Read section 4-7 in your textbook.
3. Describe what a free-body diagram is and how it is used in problem solving.
4. Use the chart below (or reproduce on a separate sheet of paper) to illustrate the solution to one of the example problems in this section (Examples 4-9 to 4-13). In the left column you must list the Problem Solving step from page 91 in your textbook. The right column should then be the application of that step in solving the Example problem.
|Problem Solving Step |Application to Example Problem # ___________ |
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5. Answers may be typed or neatly printed. Drawings may be freehand, but try to make use of the ‘Shapes’ or ‘Insert Clipart” functions of MS Word. If you submit this assignment electronically, the filename must be in the following format, “LastnameFirstinitialPerXReadActX-X”.
6. 50% Bonus: Create a comic to illustrate one of the steps of the problem solving process mentioned above using the following instructions,
a. Go to the website . Note: This website may be blocked on school computers.
b. Select “Create A Comic Strip” for a 1-3 panel comic, or “Create a Comic Book” for a 1-12 page comic book.
c. Follow the instructions on the website to create your comic.
d. When you are finished, select “Download”.
e. Select “Ok”
f. The name for your file should be, YourNameReading ActivityX-X.pdf. Make sure you keep the “.pdf” extension
g. Select “Save”.
h. If you are completing this assignment electronically, you can open the pdf file, take a snapshot of your comic, and then paste it at the end of this assignment. Otherwise, print your comic and turn in separately, or upload to FOCUS.
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Pre-DP Physics
Name: __________________________________
Period: ________ Date: ___________________
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