Energy on the Move
Pair Share: Discuss/Review Picture. Explain
what type of heat transfer are there and how
do they work
Question
• How is heat transferred? How
can the amount and direction of
heat flow be determined?
Hypothesis
IF we connect a hot and cold
glass of water through an
aluminum bar, then the heat
(will/will not) transfer to the
cold glass because of …..
Materials
•
•
•
•
•
2 Calorimeters with lids
Aluminum bar
2 Celsius thermometers
Stop Watch
2 150 mL beakers
Procedure
1. Place the 150 mL beakers inside the
calorimeters
2. Fill one beaker to 1 cm below the rim with roomtemperature water
3. Carefully push the aluminum bar and Celsius
thermometer through the slot in the lid so that
this setup will be ready for you to take
temperature readings. See Figure 1 for proper
setup.
4. Record the temperature of the roomtemperature water in Celsius under 0 time in the
Data table.
5. Carefully fill the second calorimeter to 1 cm
below the rim with boiling water. CAUTION
Boiling water can cause severe burns
6. Quickly and carefully push the
aluminum bar and Celsius thermometer
through the slot in the lid so that this
setup will be ready for you to take
temperature readings. See Figure 1
7. When the temperature in the
Calorimeter with hot water stops rising,
record the temperature under 0 time in
the data table.
8. Record temperature readings for both
calorimeters, in degrees Celsius, at 1minute intervals for 20 minutes.
Record the data in the Data table.
9. Graph the temperature readings for
both calorimeter on the graph grid
provided
Table 1: Temperature of water at 1 minute
intervals for 20 minutes
Graph . . .
Don’t forget . . .
Graph 1: Temperature of
“Hot” water and “Cold”
water at 1 minute intervals
for 20 minutes
Write a brief description of
what happened. Hint: Use
increasing and decreasing.
Y-Axis Title
Numbers in even increment
Title
What type of graph is
this???
Number in increasing increment
X-Axis Title
Discussion
• There are three types of Heat
transfer Radiation, Convection
and Conduction. Which form of
heat transfer accounts for most of
the heat transfer in this setup?
Explain
• Which Direction does the heat
energy flow? How do you know?
• Is heat lost outside of the
system? Explain
Conclusion
• Was your Hypothesis Correct?
Explain