Aim
To find out whether the thickness of steel effects the conductivity of heat.
Hypothesis
It is hypothesised that the thicker the steel the slower the metal will conduct heat and the longer it will take to melt the ice. This is because the thicker piece of steel has more surface particles working to conduct heat. The thicker pieces of steel will take longer to heat up as when the boiling water touches the steel, the faster-moving particles of the hot water collide with the slower moving particles of the steel. The faster particles give up some of their heat energy to the slower particles as they collide. The slower particles gain more energy and collide with other particles in the steel. This process continues until heat energy is transferred …show more content…
50mm, t 10mm
Steel block - dia. 50mm, t 15mm
Steel block - dia. 50mm, t 20mm
Steel block - dia. 50mm, t 25mm
Steel block - dia. 50mm, t 30mm
Method
Step 1} The equipment was set up according to the diagram, placing the three larger pieces of steel at the back and the two smaller pieces of steel at the front of the container.
Step 2} A jug was boiled and poured into a container until it was a millimetre away from the top of the smallest piece of steel. Making sure no water was splashed onto the pieces of steel.
Step 3} An ice cube was placed in the plastic ring of each piece of steel at the same time while starting the timer.
Step 4} The timer was stopped once each piece of ice melted completely and the results were recorded.
Step 5} The container was emptied and the steel was cooled down until it reached 25°
Step 6} Steps 2-5 were repeated twice to insure it was a fair test.
Results
Table
Graph …show more content…
The quality of data wasn't accurate as the ice that was used were all different sizes which would have effected every test that was done as, if the ice was larger it would have taken longer to melt. The method could have been improved by measuring the ice before the test was done. The data also wasn't accurate because all the pieces of steel that was used had different amounts of rust on it which would have acted as an insulator. This could have been improved if the pieces of steel were polished so that the steel would have no rust on them. Also the steel that was used is low grade steel and the constance is unknown, so it could have had metal with different levels of conductivity. The only way this could have been improved is if a different type of steel was used. Another way the method could be improved is the how the ice was placed on the steel. This is because if the ice is placed on its side, it will take longer to melt as there is less surface area then when the ice is placed on its
To find out whether the thickness of steel effects the conductivity of heat.
Hypothesis
It is hypothesised that the thicker the steel the slower the metal will conduct heat and the longer it will take to melt the ice. This is because the thicker piece of steel has more surface particles working to conduct heat. The thicker pieces of steel will take longer to heat up as when the boiling water touches the steel, the faster-moving particles of the hot water collide with the slower moving particles of the steel. The faster particles give up some of their heat energy to the slower particles as they collide. The slower particles gain more energy and collide with other particles in the steel. This process continues until heat energy is transferred …show more content…
50mm, t 10mm
Steel block - dia. 50mm, t 15mm
Steel block - dia. 50mm, t 20mm
Steel block - dia. 50mm, t 25mm
Steel block - dia. 50mm, t 30mm
Method
Step 1} The equipment was set up according to the diagram, placing the three larger pieces of steel at the back and the two smaller pieces of steel at the front of the container.
Step 2} A jug was boiled and poured into a container until it was a millimetre away from the top of the smallest piece of steel. Making sure no water was splashed onto the pieces of steel.
Step 3} An ice cube was placed in the plastic ring of each piece of steel at the same time while starting the timer.
Step 4} The timer was stopped once each piece of ice melted completely and the results were recorded.
Step 5} The container was emptied and the steel was cooled down until it reached 25°
Step 6} Steps 2-5 were repeated twice to insure it was a fair test.
Results
Table
Graph …show more content…
The quality of data wasn't accurate as the ice that was used were all different sizes which would have effected every test that was done as, if the ice was larger it would have taken longer to melt. The method could have been improved by measuring the ice before the test was done. The data also wasn't accurate because all the pieces of steel that was used had different amounts of rust on it which would have acted as an insulator. This could have been improved if the pieces of steel were polished so that the steel would have no rust on them. Also the steel that was used is low grade steel and the constance is unknown, so it could have had metal with different levels of conductivity. The only way this could have been improved is if a different type of steel was used. Another way the method could be improved is the how the ice was placed on the steel. This is because if the ice is placed on its side, it will take longer to melt as there is less surface area then when the ice is placed on its