Mechanical aptitude test............
Mechanical aptitude test............
Me too, but let get back on Thread
got 125 and 126 in iq tests last year. was a bit suprized how bad i did in this. but i guess this is for those who have a very mechanical mind. mine is but not as much as it should be.
Was expecting to crash and burn but it wasn't as technical as I thought - as Toxo said pretty much all based on stuff from school, GCSE Physics in force!
Seeing as I haven't had anything to do with anything like this for almost 10 years I'm quite pleased with the result!
Phil01 Ok 32 yrs ago lol.
I reckon, it does not matter how great the surface area is because atmospheric pressure will be equal if 1cm2 or 20m2.
Air pressure will not rise due to surface area
Phil01 Ok 32 yrs ago lol.
I reckon, it does not matter how great the surface area is because atmospheric pressure will be equal if 1cm2 or 20m2.
Air pressure will not rise due to surface area
Are you guys talking about the question with the 3 balloons of different sizes and asking which has the higher atmospheric pressure outside the balloon?
As far as I'm concerned the answer is right, if you think of the gas inside the balloon is what is creating pressure and pushing outwards expanding the balloon, and atmospheric pressure is pushing the balloon inwards.
If there is the same amount of gas in each balloon, the internal pressure is identical. Therefore the one with the highest atmospheric pressure is the one where the pressure inside the balloon finds it hardest to oppose the pressure outside the balloon - hence the balloon will be the smallest.
Slightly roundabout explanation but hope that helps explain it - it's absolutely nothing to do with surface area, that's completely irrelevant, it's all about the pressure inside and outside the balloon.