Two flasks hold colored water, one yellow and the other blue. Set the starting temperature of each flask, choose a type of material to connect the flasks, and see how quickly the flasks heat up or cool down. The flasks can be connected with a hollow pipe, allowing the water in the flasks to mix, or a solid chunk that transfers heat but prevents mixing.
For each, click Fast forward and then, after about 500 seconds, Pause ( ). Record the temperature of each flask.
1
Question 1
1.
The used of a solid chunk inbetween two liquids will result in heat being transfered by __________
2
2
2
2
2
2
Question 8
8.
A good heat conductor will have __________ change in temperature.
Question 9
9.
Sort the items you tested above into the categories listed below.
Glass
Rubber
Stone
Lead
Copper
Gold
Great Heat Conductor (2)
Okay Heat Conductor (2)
Poor Heat Conductor (2)
Question 10
10.
What do good heat conductors (from our experiment at least) have in comon with each other?
Experiment: Experiment with all six hollow pipes.
For each, click Fast forward and then, after about 500 seconds, Pause ( ). Record the temperature of each flask.
1
Question 11
11.
The used of a hollow pipe inbetween two liquids will result in heat being transfered by __________
4
4
4
4
4
4
Question 18
18.
Why is the transfer of heat differnet with the hollow pipe depending on if the hotter liquid is on the top vs it on the bottom?
Question 19
19.
Of the 3 things we tested, rank them form the quickest from of heat tranfer (at the top) to the slowes)
Convection (when the hottest item is on the top)
Convection (when hottest item is in the bottom)
Conduction
Use a powerful flashlight to pop a kernel of popcorn. A lens focuses light on the kernel. The temperature of the filament and the distance between the flashlight and lens can be changed. Several obstacles can be placed between the flashlight and the popcorn.