- Which has greater momentum, a heavy truck at rest or a moving skateboard? Explain.
- Why might a drink glass survive a fall onto a carpeted floor but not on a concrete floor?
- How can a huge ship have an enormous momentum when it moves relatively slowly?
- When can a 1000 kg car and a 2000 kg truck have the same momentum?
- What are two ways in which the impulse exerted on something can be increased?
- How does impulse differ from force?
- For the same force, which cannon imparts the greater speed to a cannonball - a long-barreled cannon or a short-barreled one? Explain.
- Does a moving object possess impulse? Does a moving object possess momentum? Explain.
- What does it mean to say that a quantity is conserved - for instance, conservation of momentum.
- What do we call the quantity force x distance, and what quantity does it change?
- How much work is needed to lift an object that weighs 500-N to a height of 2-m? How much work is needed to lift the same object twice as high?
- How many watts of power are are expended when a force of 6-N moves a book 2-m in a time interval of 3-s? How much power is needed to doe the same job in 1-s?
- Two cars, one twice as heavy as the other, are lifted to the same elevation in a service station. How do their potential energies compare?
- How much work is done in lifting a 100-N object a vertical distance of 2-m? How much work is done in pushing the same object up a 4-m long ramp? (The force needed here is only 50-N, which is the reason inclines are used.) What is the difference in the object’s PE in each case?
- When a car travels at 50 km/h, it has KE. How much more KE does it have at 100 km/h?
- What is the evidence for saying whether or not work is done on an object?
- Cite the law of energy conservation.
- Can an object possess energy? Can an object possess work?
- Can something have energy without having momentum? Explain. Can something have momentum without having energy? Defend your answer.
- Consider a pendulum swinging to-and-fro. At what point is the KE of the pendulum bob at a maximum? At what point is the PE at a maximum? When its KE is half its maximum value, how much PE does it have?
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Notes/assignments are listed below.
If you don't see the assignment below, use the search bar above or the "All Assignments by Date" section on the sidebar to search for it.
• RSSFriday, January 8, 2010
Chapter 4: Momentum and Energy - Review Questions
Sears Ad
DIRECTIONS: Select one of the two images shown below, and write advertising "copy" for it-
along the lines that Richard Sears would have employed. Name it, price it, describe its
components or ingredients, its uses and / or functions, and its values, qualities, or efficacy. In
addition, you should use different fonts for different parts of your "copy." Take a look at the
example on the extra-credit section. Your final on this ad will be "wrapped around" the
computerized version of your chosen image-which will be found on the/a "group shared" folder
DRAFT DUE: MONDAY 1/11/10
along the lines that Richard Sears would have employed. Name it, price it, describe its
components or ingredients, its uses and / or functions, and its values, qualities, or efficacy. In
addition, you should use different fonts for different parts of your "copy." Take a look at the
example on the extra-credit section. Your final on this ad will be "wrapped around" the
computerized version of your chosen image-which will be found on the/a "group shared" folder
DRAFT DUE: MONDAY 1/11/10
Thursday, January 7, 2010
Apologia Pro Vita Sua: A Personal Essay
ap·o·lo·gi·a ( p -l j - , -j ). n. A formal defense or justification.
Just to make sure you are clear, your compositional skills and clarity of thought are critical to your grade.
Pre-write the essay or outline it, with the understanding that you must reproduce it in its final form during our final formal class next Tuesday morning. Though your take-home test may be turned in after Tuesday’s class, this essay must be completed on time and by the end of Tuesday’s class without exception. I look forward to reading your apologiae.
When I mentioned above that you should “A review of the table of contents from Constructing a Life Philosophy should help direct your thoughts and detail your essay.” Consider that suggestion this way:
a. Is this sense of meaning related more to some system of philosophical or theological ideals that resonate within you as a result of your reading or thinking in this class? Is this sense of meaning related more to your understanding of where you fit within the systematic development of humanity as science teaches it? Is this sense of meaning more related to a combination of these perspectives.
b. Identify the religious tradition (or lack thereof) that you were raised in and how you have either independently embraced that tradition in part or whole, or how you have moved into a more independent system of beliefs. How?
c. How do you perceive that your core values and the meaning that you have derived from them effect your moral behavior. In fact, what becomes moral behavior, given those core values.
Good luck!
Mr. West
- an apology, as in defense or justification of a belief, idea, etc.
- Literature. a work written as an explanation or justification of one's motives, ..
Just to make sure you are clear, your compositional skills and clarity of thought are critical to your grade.
Pre-write the essay or outline it, with the understanding that you must reproduce it in its final form during our final formal class next Tuesday morning. Though your take-home test may be turned in after Tuesday’s class, this essay must be completed on time and by the end of Tuesday’s class without exception. I look forward to reading your apologiae.
-------------------------------------------------------
When I mentioned above that you should “A review of the table of contents from Constructing a Life Philosophy should help direct your thoughts and detail your essay.” Consider that suggestion this way:
- Paragraphs 1 and/or 2 = The importance of developing this explication and explanation of your personal code of living. What are the core values that you believe you live by or strive to live by.
- Central paragraphs of the essay = addressing systematically the core values you have stated in the previous introductory paragraphs in terms of how these core values provide meaning and significance to your experience of living.
a. Is this sense of meaning related more to some system of philosophical or theological ideals that resonate within you as a result of your reading or thinking in this class? Is this sense of meaning related more to your understanding of where you fit within the systematic development of humanity as science teaches it? Is this sense of meaning more related to a combination of these perspectives.
b. Identify the religious tradition (or lack thereof) that you were raised in and how you have either independently embraced that tradition in part or whole, or how you have moved into a more independent system of beliefs. How?
c. How do you perceive that your core values and the meaning that you have derived from them effect your moral behavior. In fact, what becomes moral behavior, given those core values.
- Project, finally, how you can apply this “apologia pro vita sua” to your interactions with institutions and communities that will be new to you in the coming year, e.g. how might it guide you to choose new friends, new activities, navigate personal and social challenges? How can this strengthen, validate and underscore your individuality?
Good luck!
Mr. West
Monday, January 4, 2010
Science One-Page Analysis #2
Below are some guidelines to consider when writing about your analysis.
Theme - the general idea that you plan to write about. The theme is developed from the packet of articles that have been chosen. Once you highlight the packet, it’s time to narrow the information into a single theme.
In order to narrow your theme from the larger pool of highlighted material, a few questions might help you pick a theme:
Who? Who did something about the subject that made an impact on you? Who else is involved? Who agrees or disagrees with your position?
What? What happened? What has been said on the subject? What new information has come to light? What have you learned about the subject?
When? When did it happen? When was the last debate on the subject? When will the subject have the greatest effect?
Where? Where does the subject affect the most people? Where was it successful? Where was it a failure?
Why? Why did it take place? Why does it matter? Why do people need to be involved?
How? How did it happen? How did it succeed or fail? How can it be repeated?
Once you have narrowed the packet down to your theme, start to form your paragraph around this idea.
Be clear - your reader should have no doubt about where you stand on the issue.
Keep the essay heading toward a definite conclusion.
Include 2 or 3 quotes from the packet of articles - Cite the quote by the author’s last name
Find a recent article in the news to attach to your essay.
Essay can be single-spaced and must fit on one page
----------------------------------------
Article Links:
GM, Ford and Chrysler strive to become the lean three: continuous improvement has taken hold in Detroit--and not a moment too soon.
http://find.galegroup.com/srcx/infomark.do?&contentSet=IAC-Documents&type=retrieve&tabID=T003&prodId=SRC-2&docId=A213958717&source=gale&userGroupName=losa8073&version=1.0
Goodyear Headlines Fuel Savings with Key Vehicle Fitments.
http://find.galegroup.com/srcx/infomark.do?&contentSet=IAC-Documents&type=retrieve&tabID=T004&prodId=SRC-2&docId=A180039649&source=gale&userGroupName=losa8073&version=1.0
Tough sensor makes gas burn better.
http://find.galegroup.com/srcx/infomark.do?&contentSet=IAC-Documents&type=retrieve&tabID=T003&prodId=SRC-2&docId=A93211370&source=gale&userGroupName=losa8073&version=1.0
Safe cars versus fuel efficiency? Not so fast.
http://find.galegroup.com/srcx/infomark.do?&contentSet=IAC-Documents&type=retrieve&tabID=T004&prodId=SRC-2&docId=CJ164843663&source=gale&userGroupName=losa8073&version=1.0
Theme - the general idea that you plan to write about. The theme is developed from the packet of articles that have been chosen. Once you highlight the packet, it’s time to narrow the information into a single theme.
In order to narrow your theme from the larger pool of highlighted material, a few questions might help you pick a theme:
Who? Who did something about the subject that made an impact on you? Who else is involved? Who agrees or disagrees with your position?
What? What happened? What has been said on the subject? What new information has come to light? What have you learned about the subject?
When? When did it happen? When was the last debate on the subject? When will the subject have the greatest effect?
Where? Where does the subject affect the most people? Where was it successful? Where was it a failure?
Why? Why did it take place? Why does it matter? Why do people need to be involved?
How? How did it happen? How did it succeed or fail? How can it be repeated?
Once you have narrowed the packet down to your theme, start to form your paragraph around this idea.
Be clear - your reader should have no doubt about where you stand on the issue.
Keep the essay heading toward a definite conclusion.
Include 2 or 3 quotes from the packet of articles - Cite the quote by the author’s last name
Find a recent article in the news to attach to your essay.
Essay can be single-spaced and must fit on one page
----------------------------------------
Article Links:
GM, Ford and Chrysler strive to become the lean three: continuous improvement has taken hold in Detroit--and not a moment too soon.
http://find.galegroup.com/srcx/infomark.do?&contentSet=IAC-Documents&type=retrieve&tabID=T003&prodId=SRC-2&docId=A213958717&source=gale&userGroupName=losa8073&version=1.0
Goodyear Headlines Fuel Savings with Key Vehicle Fitments.
http://find.galegroup.com/srcx/infomark.do?&contentSet=IAC-Documents&type=retrieve&tabID=T004&prodId=SRC-2&docId=A180039649&source=gale&userGroupName=losa8073&version=1.0
Tough sensor makes gas burn better.
http://find.galegroup.com/srcx/infomark.do?&contentSet=IAC-Documents&type=retrieve&tabID=T003&prodId=SRC-2&docId=A93211370&source=gale&userGroupName=losa8073&version=1.0
Safe cars versus fuel efficiency? Not so fast.
http://find.galegroup.com/srcx/infomark.do?&contentSet=IAC-Documents&type=retrieve&tabID=T004&prodId=SRC-2&docId=CJ164843663&source=gale&userGroupName=losa8073&version=1.0
Chilly Climate for Oil Refiners
http://www.nytimes.com/2009/12/24/business/energy-environment/24refining.html?_r=1&emc=eta1
http://www.nytimes.com/2009/12/24/business/energy-environment/24refining.html?_r=1&emc=eta1
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