Physics SPA Practical
Skills Tested:
B - Implementation
Apparatus/Materials Given:
2 500ml Beaker
2 Test Tubes
Bunsen Burner
Electronic Weighing Scale
Kitchen Towel
2 Thermometers
Boiling Water
600g of Lead Shots
Measuring Cylinder
Procedure:
Place 100g of Lead Shots into test tube.
Do the same for the other test tube.
Place the test tubes into the beaker of boiling water.
After approx. 5 minutes take temperature of the lead shots in the
tubes. Record this as T1.
Ready a beaker* of 100ml of water and take its temperature. Record
this as T2.
Empty all the Lead Shots into the beaker. Record the temperature
change as T3.
Remove water from beaker, and dry Lead Shots on Kitchen towel
provided.
Repeat experiment for varying volumes of water in beaker*.
Calculate the value of T3 - T2/T1 as T4.
Plot T4 against mass of water in beaker*.
Discuss any anamolous data.
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By request of STCP,
The calculation part isn't really accurate. I can't really remember
what was the equation for it but I am sure of the procedure. Well
we had to do 6 measurements so it was kinda taxing in the sense
some people did not have the time to plot the graph due to poor
time management and multi-tasking. But I guess I was dumber than
them, I finished 10 minutes earlier than everyone else.. so there I
was plotting the graph and manipulating the values but I forgot I
couldn't leave my table in pencil. So thats the worst mistake
haha.
Informant from AJC
