does the placement of different masses on a lever affect the equilibrium of the equal arm balance?
!~*all help appreciated*~!
help me
-
s-c-r-i-b-b-l-e-s
- Posts: 3
- Joined: Thu Oct 04, 2007 1:44 pm
help me
HELP ME!!!! i need help with this question:
does the placement of different masses on a lever affect the equilibrium of the equal arm balance?
!~*all help appreciated*~!
does the placement of different masses on a lever affect the equilibrium of the equal arm balance?
!~*all help appreciated*~!
joe
says
HAI
=D
says
HAI
=D
-
s-c-r-i-b-b-l-e-s
- Posts: 3
- Joined: Thu Oct 04, 2007 1:44 pm
Re: help me
wait.....nevermind i figured it out.....MUHAHAHAHA!!! FEAR MEH!! -cough- ._.s-c-r-i-b-b-l-e-s wrote:HELP ME!!!! i need help with this question:
does the placement of different masses on a lever affect the equilibrium of the equal arm balance?
!~*all help appreciated*~!
joe
says
HAI
=D
says
HAI
=D
-
jeffreyshu
- Former Expert
- Posts: 9
- Joined: Mon Sep 24, 2007 9:36 am
-
s-c-r-i-b-b-l-e-s
- Posts: 3
- Joined: Thu Oct 04, 2007 1:44 pm
i asked my parents to help me...jeffreyshu wrote:Can you tell us what you did to figure it out? Other people may also have the same question as you did.
oh and im suposed to write a research paper on this queston. doyou have any idea what i should write about? please respond A.S.A.P.
joe
says
HAI
=D
says
HAI
=D
-
bradleyshanrock-solberg
- Former Expert
- Posts: 260
- Joined: Thu Aug 25, 2005 7:44 am
- Occupation: Software Engineer/QA Lead - Quality, Risk Assessment, Statistics, Problem Solving
- Project Question: BS Caltech Engineering & Applied Science (Mechanical Engineering, Materials Science)
Research in Traffic and Ceramic Composites
25 years doing IT, various roles, for multinational manufacturing company - Project Due Date: n/a
- Project Status: Not applicable
To write a research paper you have to actually do some research, not just ask an authority (such as us or your parents).
If I was you, I would go get a rigid object, such as a ruler, and something to use as weights....coins perhaps, they are the same weight as each other and can be taped together etc, and then something to balance the ruler on....preferably something round or triangular (with point sticking up).
Then I would experiment with the weights and see what it does to the balance of the lever arm (the ruler) and report on my results.
For it to be research, you need to have a few ideas before you begin though.....you have to say what you expect to see, and then test the hypothesis with your experiment.
The difference between science and an opinion is that a scientists realize that no opinion is true unless tested. An untested opinion is called a "Hypothesis" and after stating it, the scientist then works out what tests might prove or disprove this opinion. After performing the tests that prove that the opinion is correct, an hypothesis must also stand up to other scientists performing the same test.
Finally...if new evidence comes along and is also tested and repeatable the scientist has to change his opinion. No scientific theory is really considered "the truth". It's just the best "opinion" we have of how things work that we've come up with so far.
"Asking your parents" is how things were done before the scientific method was put into practice. It is known as "appeal to authority" and while useful if that authority is correct, can lead to very strange behaviors if the authority is incorrect.
So...to do your research paper, you need to actually predict what will happen and then test your predictions. It actually doesn't matter if your prediction was proved or disproved by the tests - what matters is that the process was followed and you learn something by the experiment and you communicate your idea, experiment and results to your instructor.
If I was you, I would go get a rigid object, such as a ruler, and something to use as weights....coins perhaps, they are the same weight as each other and can be taped together etc, and then something to balance the ruler on....preferably something round or triangular (with point sticking up).
Then I would experiment with the weights and see what it does to the balance of the lever arm (the ruler) and report on my results.
For it to be research, you need to have a few ideas before you begin though.....you have to say what you expect to see, and then test the hypothesis with your experiment.
The difference between science and an opinion is that a scientists realize that no opinion is true unless tested. An untested opinion is called a "Hypothesis" and after stating it, the scientist then works out what tests might prove or disprove this opinion. After performing the tests that prove that the opinion is correct, an hypothesis must also stand up to other scientists performing the same test.
Finally...if new evidence comes along and is also tested and repeatable the scientist has to change his opinion. No scientific theory is really considered "the truth". It's just the best "opinion" we have of how things work that we've come up with so far.
"Asking your parents" is how things were done before the scientific method was put into practice. It is known as "appeal to authority" and while useful if that authority is correct, can lead to very strange behaviors if the authority is incorrect.
So...to do your research paper, you need to actually predict what will happen and then test your predictions. It actually doesn't matter if your prediction was proved or disproved by the tests - what matters is that the process was followed and you learn something by the experiment and you communicate your idea, experiment and results to your instructor.