Sunday, October 3, 2010
Inverse and Direct Relationships
Inverse and direct relationships can be difficult to understand. It is always easier to grasp a concept if you can relate it to something that is significant to your own life. In your Newton's 2nd Law activity with the skateboard you needed to come up with a real life example of a direct and inverse relationship. Please post your examples as comments so that everyone can see and benefit from them. An example may only be posted once - no repeats! Also, let's make this a bit of a discussion. If you like an example or agree with it, let the person know how it helped you. If you aren't sure that an example is accurate/correct, politely and respectfully voice that for the benefit of the class. Always remember to identify yourself (don't use your full last name!) and class period. When responding to a person's comment, make sure you acknowledge the person in your own comment.
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Elena M. Per.7-8a An example of a direct relationship is the heavier the load of laundry the longer it will take to dry at the same heat level. This is like how force and acceleration are directly related. An example of an inverse relationship is running the mile. The if your running speed decreases your time will then increase, but overall you will have completed the same distance. This is like how when mass and acceleration are inversely related.
ReplyDeleteCarly B. period 7-8a.One example of a direct relationship is the windier the climate is, the quicker paint on a nails will dry. On the contrary, an inverse relationship is that less windy of a climate results in the longer it takes to dry nails. These examples are accurate because they show that when one thing goes up, the other goes down. (That is applied to inverse.) Also, for direct, when one goes up, the other goes up as well.
ReplyDeleteAn example of direct is the more coffee you drink in the morning, makes you more awake later. Each increases just like force and acceleration. An example of inverse is the more you sleep in the morning means the less time you have to get ready for school. In this example one increases while the other decreases like mass and acceleration.
ReplyDeleteMarcus O.(7-8a)
ReplyDeleteAn example of a direct relationship is the heavier the baseball bat is, the longer it will take to swing at a good reaction time. That is how acceleration and force are directly related. An example of an inverse relationship is if you don't work in studies, then you will have more homework. This is how acceleration and mass are inversely related.
Adam D.
ReplyDelete1/2a
In a direct relationship, both variables do the same in response to the other. So an example for direct relationship that I came up with was that in lifting weights, the more weight you put on the bar, the more difficult it is to lift. So as the weight increases, the difficulty increases as well. Also, an example for inverse relationship (variables do OPPOSITE in response to other) is when you spend a large amount of money, the money in your account will decrease due to your spending. As the spending of money increases, the amount you have left in your account decreases.
Maggie F.
ReplyDelete1/2a
A direct relationship is when two things change the same way. My example is that the more you practice something, the better you are at it. An inverse relationship is when one thing changes in one direction, while the other thing changes in the opposite direction. My example is that the more money you spend, the less money you have.
Liam W
ReplyDeletePer 7
In a direct relationship, when one thing changes, the other changes in the same way. For instance; The more time spent on a project the more of a grade you get, and the less time you spend on a project, the less of a grade you get. An inverse relationship is if one thing changes, and the other changes in the opposite way. My example of this is the more late your project is the less of a grade you get.
cassi K.
ReplyDelete1-2a
Direct relationships are objects that are affected the same way. Force and acceleration are a direct relationship. My example would be the harder you kick a soccer ball (force) the further it will go. Inverse relationships are affected the opposite way. One object is affected one way and the other object the opposite way. Mass and acceleration are inverse. My own example would be the heavier the soccer ball the shorter the distance it goes once you kick it. Even though you may be exerting the same force on a light soccer ball and a heavier one the heavy one will not go as far because of its larger mass. Also, elena's direct relationship example was helpful.
Gena L. 1-2a
ReplyDeleteA direct relationship is when things are equally affected. My example for a direct relationship is the heavier you are, the higher your blood pressure is. An indirect relationship is when things are oppositely affected. My example for an indirect relationship is, The older you become, the slower your metabolism gets.
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ReplyDeleteAcceleration and force are directly related. This means that when one increases, so does the other and when one decreases the other does too. For example, when you increase your speed of a bumper car, there will be more force exerted on the other car. Acceleration and mass are inversely related though. When one increases the other decreases and vice versa. The more people that eat dinner, the less there will be for leftovers.
ReplyDeletePat M.
ReplyDelete7-8A
Indirect and direct relationships are when things change. My example of a direct relationship is if you practice more then you will be better at the sport. My example of indirect relationship is the more you exercise the less weight you'll have.
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ReplyDeleteWhen things are affected equally, they have a direct realitionship. So that means that if one increases, so does the other. An example of a direct realtionship is hitting a golf ball. The harder you hit the ball, the farther it will go. In physics, force and acceleration have a direct relationship. There are also indirect relationships. Indirect realtionships are when things are affected diferently. So one goes up and the other goes down. An example of an indirect relationship is the more time you spend not studying, the less smart you will be. In physics, aceleration and mass have an indirect realtionship.
ReplyDeleteThis comment has been removed by the author.
ReplyDelete1-2a
ReplyDeleteAn example of a direct relationship is when you are eatting dinner and the more you eat, the more full you feel. that is an direct relationship because both things increase instead of just one, that would be an inverse relationship. and example of an inverse relationship is when you are pulling a wagon, the more mass or weight in the wagon the slower it will go.
Frank D
ReplyDelete2b/3
An example of a direct relationship would be the farther you push down on the accelerator in a car, the faster the car goes. An example of an inverse relationship would be if you were to manage your time effectively through out your life, than you will be dealing with less stress as you keep living.
Ryan McGuire
ReplyDelete2b/3
An example of a direct relationship would be the longer you grill food the more cooked it is.
An example of indirect relationship would be the louder the radio the less you listen
Anne Maire Pavlis
ReplyDelete2b-3
An example of direct relationship would be the bigger demand for an item the higher the price gets. Both the demand and price increase. An example of indirect relationship would be the more you listen in class the less you have to study at home. The more you listen, increases. The less you have to study at home, decreases.
Lauren F
ReplyDelete2b-3
An example of a direct relationship would be when you increase the distance you run, you increase your stamina. This is a direct relationship because they are both having the same result. In this case it is increasing, in other cases it maybe decreasing. An example of a indirect relationship is when the temperature rises the less ice cubes you have. This is a indirect relationship because when a variable changes there is an opposite change in the other variable.
An example of direct relationship would be when you throw a ball very hard, the farther it will go. The force you put on the ball is very great so when you release the ball, the ball accelerates rapidly so the ball will go farther threw the air. An example of an indirect relationship would be when you drink out of a water bottle. The more sips you take, the less water you have in the water bottle.
ReplyDeleteKatherine S.
ReplyDelete1/2A
Inverse Relationship:
In the winter, sales for warm boots and layered clothing go up, while in the spring, they go down because it gets much warmer and nobody needs them. This is inverse because one factor, (winter sales,) increases and the other, (spring sales,) decreases.
Direct Relationship:
The more amount of food someone buys in a store, the more they will have to pay for it. This is direct because both of the factors, (amount of food and it's price,) are increasing.
Alesia C.(7-8b)
ReplyDeleteAn example of direct realtionship is the longer your hair is the longer it well take to dry. An example of inverse relationships is that the more paint you use on a art project the less paint you well have on the next art project.
direct relationship would be having a hockey stick with a mass of 500 grams at a speed of 70 miles per hour vs a stick with a mass of 1 kilogram at 70 mph. When you increase the mass you also increase the kinectic energy produced in a shot taken. Indirect would be quieter the referees whistle the better it is for your hearing as the amount of decibels decreases the amount of time you can withstand the sound pressure increases.
ReplyDelete