Need help on physics question..

• Darkness_hacker99

  23 Apr 07, 10:14

  I need help on physics question relating to Buoyant force in liquid and Archimedes law of upthrust. It's A level stuff.
  
  Any precious help to me is greatly appreciated.. Thanks
• kwlee

  23 Apr 07, 10:20

  Originally posted by Darkness_hacker99:

  I need help on physics question relating to Buoyant force in liquid and Archimedes law of upthrust. It's A level stuff.
  
  Any precious help to me is greatly appreciated.. Thanks

  sounds like some chim stuff, sry can't help man. i totally suck @ physics.
• deathscythe99

  23 Apr 07, 10:23

  Eh? Specific question?
  
  This might help for starters...Need more specific question on your question...
  
  http://en.wikipedia.org/wiki/Buoyancy
• Conner MacDermott

  23 Apr 07, 10:26

  Why don't you just post the question directly.
• ahhaoz

  23 Apr 07, 10:26

  specifics pls...
  
  but rule of thumb... amount of upthrust by the water = amount of water being displaced by the object..
  
  increased surface area also increases the buoyancy.. dats why something flat like a piece of tin can float.. but not tin molded into a ball..
  
  
• Darkness_hacker99

  23 Apr 07, 10:29

  I already found what Conner MacDermott and ahhaoz said already.
  
  There is no specific questions to my problem..
  
  I need someone to sent me notes on this chapter.. I wonder if anyone is kind enough to sent me the notes and questions on this chpater for me to refer?
• ditzy

  23 Apr 07, 10:44

  At uni level, this is no longer under physics, its under fluids. No, really. I recommend you textbook, but I can only tell you when I get home.
• ahhaoz

  23 Apr 07, 10:46

  Originally posted by ditzy:

  At uni level, this is no longer under physics, its under fluids. No, really. I recommend you textbook, but I can only tell you when I get home.

  yep it's under fluids.. mechanical subject.. can't help..
  
  haha gd luck
• deathscythe99

  23 Apr 07, 10:47

  Originally posted by Darkness_hacker99:

  I already found what Conner MacDermott and ahhaoz said already.
  
  There is no specific questions to my problem..
  
  I need someone to sent me notes on this chapter.. I wonder if anyone is kind enough to sent me the notes and questions on this chpater for me to refer?

  Frankly speaking, I dun understand your initial question...
  
  Could you please more or less focus on which part of Archimedes' Principle, or Buoyancy, which you intend to know?
• ditzy

  23 Apr 07, 10:55

  Don't thank me, thank Yahoo!
  
  http://sg.search.yahoo.com/search?p=fluid+buoyancy&fr=yfp-t-web&toggle=1&cop=&ei=UTF-8
• deathscythe99

  23 Apr 07, 11:03

  Ok since A level, I'll be less specific bah...No notes, only the former A level text which I USED to have, but moving on...
  
  First, Archimedes Principle. It states that the net fluid force on a body submerged (or floating) in a stationary fluid is an upward force equal to the weight of the fluid displaced by the body Therefore, buoyant force is an upward force which the fluid exerts on the object due to the weight of fluid displaced by the body.
  
  In a static fluid, weight of the fluid causes an increase in pressure with depth. At the water surface, it is atmospheric pressure, below it, as h increases, pressure increases:
  
  P = Po + pgh (p is density, g is gravitational accel, h is ht below the water surface)
• Darkness_hacker99

  23 Apr 07, 11:09

  Originally posted by ditzy:

  Don't thank me, thank Yahoo!
  
  http://sg.search.yahoo.com/search?p=fluid+buoyancy&fr=yfp-t-web&toggle=1&cop=&ei=UTF-8

  linkie.
  
  http://sg.search.yahoo.com/search?p=fluid+buoyancy&fr=yfp-t-web&toggle=1&cop=&ei=UTF-8
• Darkness_hacker99

  23 Apr 07, 11:13

  How to relate buoyancy to weight increase in scale?
  
  
• the.owl

  23 Apr 07, 11:31

  google is your friend.
• ditzy

  23 Apr 07, 11:38

  So I don't need to find the textbook now lar hor?
• Darkness_hacker99

  23 Apr 07, 11:47

  Originally posted by ditzy:

  So I don't need to find the textbook now lar hor?

  no need le..
• ditzy

  23 Apr 07, 11:48

  Couldn't be bothered to anyway...
• deathscythe99

  23 Apr 07, 12:25

  Originally posted by Darkness_hacker99:

  How to relate buoyancy to weight increase in scale?
  
  

  Buoyancy to...weight increase in scale?
  
  Dun understand question...u mean the scale is in the buoyant object?
• Darkness_hacker99

  23 Apr 07, 13:01

  Originally posted by deathscythe99:

  Buoyancy to...weight increase in scale?
  
  Dun understand question...u mean the scale is in the buoyant object?

  scale is weighing scale..