GAVS Physics AB Course Resources
Module 5: Application of Newton's Laws
Instructor Information
Email: Emily.Kroutil@gavirtualschool.org
Phone: 470-238-8663 (voicemail)
ASSIGNMENT RESOURCES AND TIPS
DISCUSSION: Friction
- Make sure you answer ALL questions in the prompt AND respond to two classmates.
- You will only earn a maximum of 70% if you do not thoughtfully respond to two classmates.
LAB: Coefficient of Friction
- The lab handout can be found on page 3 of the content.
- You can view the lab rubric in the lab's dropbox folder. Following the rubric is the BEST WAY to make sure that you earn full points on your lab.
- If the lab has a short answer problem that makes you do math, you MUST show your work in order to earn full credit.
- I walk you through the lab in this video: https://youtu.be/UiTRVIHoYz0 (BE AWARE that there is an error in the calculation of the coefficient of kinetic friction). Sh))
Q: I'm having trouble getting the site to work. What should I do?
A: If your computer has issues with accessing the Phet activities you MUST get this straightened out in order to submit the work, and these labs are required with no alternative assignments available. Unfortunately, this is not something that I am able to help with, but a problem that you will need to find a solution to. If you wait until the day the assignment is due to try to access the site and you have problems, you will not be able to get the assignment submitted on time, so it is important that you access this site ahead of time so that you'll either know you don't have problems, or you will have time to get the problems fixed before the assignment is due. Being able to access this site and the activities there is a requirement of the course and it is your responsibility to make sure that you have access. This the help site for Phet: https://phet.colorado.edu/en/help-center/running-sims. This is a blog post that a parent shared with me. The information here enabled her son to solve his computer's problems: https://blogs.windows.com/msedgedev/2016/12/14/edge-flash-click-run/
QUIZ: Weight, Normal, Friction, Tension, and Springs
- Make sure you do the practice problems before you take the quiz. The Weight/Normal/Friction practice problems and solutions can be found on page 3 of the content. The tension/spring forces practice problems and solutions can be found on page 4 of the content.
- If the quiz has a short answer problem that makes you do math, you MUST show your work in order to earn full credit.
- I discuss these concepts in this video: https://youtu.be/O4ATJ-eKfj8
- Remember the formula for Hooke's Law is F=-kx NOT F=kx. You cannot drop the negative UNLESS you have a negative k or x that causes it to cancel out.
- This site has excellent information about elevator problems: http://physics.usask.ca/~kathryn/phys111/apparent_weight.pdf
QUIZ: Systems of Slopes
- Make sure you do the practice problems before you take the quiz. The Systems of Slopes practice problems and solutions can be found on page 5 of the content.
- If the quiz has a short answer problem that makes you do math, you MUST show your work in order to earn full credit.
- This site explains these concepts well and even has additional practice problems: http://www.physicsclassroom.com/class/vectors/Lesson-3/Inclined-Planes
LAB: Newton's Law of Universal Gravitation
- The lab handout can be found on page 7 of the content.
- You can view the lab rubric in the lab's dropbox folder. Following the rubric is the BEST WAY to make sure that you earn full points on your lab.
- If the lab has a short answer problem that makes you do math, you MUST show your work in order to earn full credit.
- I walk you through the lab in this video: https://youtu.be/y42lsWvkpok
- In this lab you will be calculating the value for G, not g. G is the Universal gravitational constant, g is our acceleration due to gravity, 9.8m/s^2. Big G and little g are not the same!!! You must use Newton's Law of Universal Gravitation in this lab to find G. PLEASE make sure you have read the course content on this lab before you do the lab!!
Q: I'm having trouble getting the site to work. What should I do?
A: If your computer has issues with accessing the Phet activities you MUST get this straightened out in order to submit the work, and these labs are required with no alternative assignments available. Unfortunately, this is not something that I am able to help with, but a problem that you will need to find a solution to. If you wait until the day the assignment is due to try to access the site and you have problems, you will not be able to get the assignment submitted on time, so it is important that you access this site ahead of time so that you'll either know you don't have problems, or you will have time to get the problems fixed before the assignment is due. Being able to access this site and the activities there is a requirement of the course and it is your responsibility to make sure that you have access. This the help site for Phet: https://phet.colorado.edu/en/help-center/running-sims. This is a blog post that a parent shared with me. The information here enabled her son to solve his computer's problems: https://blogs.windows.com/msedgedev/2016/12/14/edge-flash-click-run/
- Q: I'm confused about how to set up the graphs. Can you help?
- A: For graph 1, you will put (m1)(m2) on the x-axis and force on the y-axis. Use the information from Trial 1 for this graph. This information is in Table 1
For graph 2, you will put (d) on the x-axis and force on the y-axis. Use the information from Trial 2 for this graph. This information is in table 2.
For graph 3, you will put (d^2) on the x-axis and the force on the y-axis. Use the information from Trial 2 for this graph. You will need to square the distance recorded in table 2 before you graph it.
- Q: I'm not really sure how to graph force. Can you help?
- A: This video shows you how to graph very large and very small numbers: https://www.youtube.com/watch?v=BntJvyO-org. In this video, they graph by hand, but in the second video: https://www.youtube.com/watch?v=0eMh6ODzlrI, he creates the graph on the computer.
QUIZ: Circular Motion and Newton's Law of Universal Gravitation
- Make sure you do the practice problems before you take the quiz. The uniform circular motion practice problems and solutions can be found on page 6 of the content. The Newton's Law of Universal Gravitation practice problems and solutions can be found on page 7 of the content.
- If the quiz has a short answer problem that makes you do math, you MUST show your work in order to earn full credit.
TEST: Application of Newton's Laws
- A great way to study for the test is to go back and look at the quiz questions you missed.
- If the test has a short answer problem that makes you do math, you MUST show your work in order to earn full credit. What does showing your work look like? Read this!
- After you finish your test, be sure to review what you missed, and look for the News announcement outlining test correction procedures.