Match the scenario to the type of interaction between the particles.
Column A
1.
Two positive charges are place close together:
Two positive charges are place close together
2.
Two negative charges are placed far apart:
Two negative charges are placed far apart
3.
A negative charge and a positive charge are place closed together:
A negative charge and a positive charge are place closed together
4.
A negative and a positive charge are placed far apart:
A negative and a positive charge are placed far apart
Column B
a.Strong attractive interaction
b.Weak repulsive interaction
c.Strong repulsive interaction
d.Weak attractive interaction
1. c. Strong repulsive interaction
2. d. Weak attractive interaction
3. a. Strong attractive interaction
4. b. Weak repulsive interaction
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Feature
Arguments and Fallacies
Recently, investigators have pointed out that one result of our overabundant, overmarketed food supply is an increase in the amounts of food sold and consumed at any one time. Larger portions have more calories, and people tend to eat more when confronted with large amounts of food.
In the public there is a surprising conceptual gap: a virtual absence of intuitive understanding that larger portions contribute more calories. Most people seem to view a soft drink as a soft drink, no matter how big it is. When it is explained that a 64-ounce soft drink container could provide as much as 800 calories, audiences gasp. If we want to reverse the obesity epidemic, we must get this point across, perhaps by demanding visible calorie labeling in restaurants and fast food establishments, and other policies that address the environment of food choice.
The perfect place to initiate such policies is in our schools. Healthy eating habits start early. Schools are the main providers of away-from-home meals for school- ged children and adolescents, followed by fast food restaurants. Portion sizes of National School Lunch program (NSLP) meals are generally consistent with the serving sizes recommended in the USDA Food Guide Pyramid. However, there are increasing numbers of food and beverage options at school from which students choose their meals and snacks. No nutrition standards apply to these foods, and most are high in fat and sugar, and therefore in total calories. Many of these foods tend to be made available in large portion sizes, similar to those served in restaurants or available in the retail sector. We need to engage a group of students, parents, school officials and community leaders to develop standards that address portion sizes for all foods available on school campuses. This will send a clear message to students that healthy eating is a priority for the school and community. It will also provide an environment that supports healthy choices by students.
Question 1
Which choice best expresses one of the author's main claims in this article?
Responses
A People should know that portion size adds calories to meals.People should know that portion size adds calories to meals.
B Too many people think that the way to avoid obesity is to eat less fat.Too many people think that the way to avoid obesity is to eat less fat.
C Obesity is mainly connected to food being overmarketed.Obesity is mainly connected to food being overmarketed.
D School lunches have created the obesity epidemic.School lunches have created the obesity epidemic.
Question 2
Which two sentences from the passage best support the answer to Question 1?
Responses
A In the public there is a surprising conceptual gap: a virtual absence of intuitive understanding that larger portions contribute more calories.In the public there is a surprising conceptual gap: a virtual absence of intuitive understanding that larger portions contribute more calories.
B This will send a clear message to students that healthy eating is a priority for the school and community.This will send a clear message to students that healthy eating is a priority for the school and community.
C If we want to reverse the obesity epidemic we must get this point across, perhaps by demanding visible calorie labeling in restaurants and fast food establishments, and other policies that address the environment of food choice.If we want to reverse the obesity epidemic we must get this point across, perhaps by demanding visible calorie labeling in restaurants and fast food establishments, and other policies that address the environment of food choice.
D Recently, investigators have pointed out that one result of our overabundant, overmarketed food supply is an increase in the amounts of food sold and consumed at any one time.Recently, investigators have pointed out that one result of our overabundant, overmarketed food supply is an increase in the amounts of food sold and consumed at any one time.
E However there are increasing numbers of food and beverage options at school from which students choose their meals and snacks.However there are increasing numbers of food and beverage options at school from which students choose their meals and snacks.
Question 1: A. People should know that portion size adds calories to meals.
Question 2: A. In the public there is a surprising conceptual gap: a virtual absence of intuitive understanding that larger portions contribute more calories. C. If we want to reverse the obesity epidemic we must get this point across, perhaps by demanding visible calorie labeling in restaurants and fast food establishments, and other policies that address the environment of food choice.
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answer this question
Determine which of the statements are claims from the passage and which are counter-claims.
Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.
Claims Counter-claims
cell phones can improve retention with music as a memory aid
cell phones can be useful in class that requires significant amount of Silent work, art or creative writing class for example
cell phones are a constant distraction in a academic classroom
cell phones prevent Walkers or Runners hearing Danger approaching
cell phone prevent anti-social behaviour preventing the development of the art conversation
I. Invasion of the Body Snatchers:
Have you noticed a change in the world around you recently? Have you seen how more and more people are walking around with little rectangles in their hands or pockets with long wires plugged straight into their ears? At the grocery store yesterday, I counted at least twenty people completely lost in the music provided by their ever-present cell phones. It’s as if the old science-fiction movie Invasion of the Body Snatchers was coming true; we are being overtaken by pod people. So at the risk of appearing to be a crotchety old man complaining about the “good ole days,” I have to make a stance against the evil influences of the cell phone and ear-bud phenomena on our society.
II. A Rational and Well-Thought Out Fear:
Now, I am not a Luddite; I have no desire to go around smashing up every cell phone or technological gadget in sight. I enjoy and benefit from technological advances just like everyone else. I have a microwave, a television, a lap-top computer, and a gas stove, and I use them all practically every day. I am not accusing people listening to music on their cell phones of having detrimental effects upon our society because I hate music either. I profoundly do not hate music—but I do, ridiculous as it sounds, hate when cell phones are used to block out the real world.
III. The Dangers and Distractions of Ear Buds:
People who have ear buds in their ears simply cannot hear danger approaching. All they hear is the pretend soundtrack of their lives. People walking with ear buds in cannot hear a dog dashing up behind them nor can they hear the footsteps of a thief or murderer sneaking up behind him or her either. People who drive their cars with ear buds plugged in their ears (an act that is considered a traffic violation in many states) cannot hear a child screaming or a horn blowing in warning. Cell phones are known to be a factor in many car accidents. I won’t even mention how distracting ear buds plugged into a cell phone can be for a student in a classroom setting! We basically have handed a device to students that invites them to not pay attention to the real world around them.
IV. Narcissism:
Beyond just being distracting and dangerous, ear buds are detrimental and damaging to society as a whole. Ear buds work against a community of listeners. Everyone is walking all over the neighborhood, plugged into their latest favorite playlist, but no one is talking to anyone. People who are addicted to their ear buds don’t care about other people. They don’t want community and contact with the real world. Ear buds also actively destroy live musicians' ability to make a living with their art form. No one wants live music anymore when they can pay less to hear it instantly and privately anytime they want. If we don’t curb our use of ear buds, all our musicians will languish and no new music will be developed.
V. Toss Them In the Trash!
People refuse to recognize the danger of ear buds because they simply love their ear buds too much to give them up. Ear buds are probably doing serious physical damage to their inner eardrums or even the brain itself, but apparently that doesn’t bother anyone. I shudder to think of what the future will be like if we continue on the path of ear bud dependence we’re traveling. Next time you’re tempted to plug
Claims:
- Cell phones can improve retention with music as a memory aid.
- Cell phones can be useful in class that requires significant amount of Silent work, art or creative writing class for example.
Counter-claims:
- Cell phones are a constant distraction in an academic classroom.
- Cell phones prevent walkers or runners hearing danger approaching.
- Cell phones prevent anti-social behaviour preventing the development of the art conversation.