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Author Topic: Physx paper 6.  (Read 1521 times)

Offline HalpPlease

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Physx paper 6.
« on: November 04, 2009, 05:39:23 am »
does anyone know latent heat fusion formula's and specific latent heat etc. and also what are all the ways of improving experiments.

Thanks :D
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Offline Ghost Of Highbury

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Re: Physx paper 6.
« Reply #1 on: November 04, 2009, 06:47:26 am »
specific heat capacity = \frac{energy absorbed}{mass * temp. change}

specifc latent heat = \frac{energy absorbed}{mass}

the expirmental changes can be

-repeat for average and accuracy
-insulate
-switch of power source when recording readings to prevent heating of the wire and change in resistance
-use data logging for accurate time intervals
-transfer hot objects into beakers of water more quickly to prevent heat loss
-check for zero error- (vernier calliper & screq gauge)
-read measurements perpendicularly to scale-avoid parallax
-use a lid (to avoid heat loss)




if i get more i'll add them here
« Last Edit: November 04, 2009, 08:14:42 am by A@di »
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Offline dlehddud

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Re: Physx paper 6.
« Reply #2 on: November 04, 2009, 07:24:10 am »
yea the formulas right
and the accuracy problems differ with each question
it depends wot topic the questions on
« Last Edit: November 04, 2009, 07:26:25 am by dlehddud »
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Offline Ghost Of Highbury

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Re: Physx paper 6.
« Reply #3 on: November 04, 2009, 07:31:36 am »
Quote from: dlehddud on November 04, 2009, 07:24:10 am
yea the formulas right
and the accuracy problems differ with each question
it depends wot topic the questions on

yea..those were the general ones/.

if u know more..cud u plz add on..
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Offline dlehddud

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Re: Physx paper 6.
« Reply #4 on: November 04, 2009, 08:08:45 am »
transfer hot objects in to beakers of water more quickly to prevent heat loss
check for zero error- measurements start at zero
read measurements perpendicularly to scale-avoid parallax
use a lid - seperate mark from insulate

nd looking 4 more  :D :D
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Offline Ghost Of Highbury

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Re: Physx paper 6.
« Reply #5 on: November 04, 2009, 08:12:38 am »
Quote from: dlehddud on November 04, 2009, 08:08:45 am
transfer hot objects in to beakers of water more quickly to prevent heat loss
check for zero error- measurements start at zero
read measurements perpendicularly to scale-avoid parallax
use a lid - seperate mark from insulate

nd looking 4 more  :D :D

thanks ..i'll add these to the list
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