Heat Transfer Lab

Question- (Goal of lab)What factors affect how much thermal energy an object has?

(Answer this Q below with what you think.)

What do you think could change something's thermal energy?

Copy this data chartTemp. Change Data Chart.

Times

Beaker A Beaker B Beaker C Beaker D

0 minutes

3 minutes

6 minutes

9 Minutes

12 Minutes

15 Minutes

18 Minutes

21 Minutes

24 Minutes

Experiment Procedures1. Get 4 beakers, 4 thermometers, ice, and

water.2. Label the beakers A, B, C, & D.3. Fill beakers A & C with 400 ml of water

and B & D with 800 ml of water.4. Take and record the temperature of each

beaker of water. (temp should be the same)

5. Place beakers A & B on the hot plate. Set both the hot plates to a setting of 3.

Experiment Procedures Continued6. Put the ice in 2 plastic ziplock baggies. Aim

for a mostly full bag, BUT they must be of equal mass.

7. Place one baggie in beaker C and one in beaker D.

8. Set the timer for 5 minutes. When it goes off take the temperature of each beaker and record it in your data chart.

Make sure the thermometer is not touching the glass of the beaker or the ice baggie. It may skew your results.

9. Repeat step 8 until your class is out of time.

Analyze your data by making a line graph! Follow the steps to graph your data:

Step 1 Draw the X axis and label it Time (0, 3, 6, 9, 12, 15, 18, 21, 24 minutes)

Step 2 Draw the Y axis and label it Temperature in Celsius. (Start at 0 and end at 90, count by 5s)

Step 3 Chart each beaker’s data with a different color and make a key of to the side

Stop and Think

1. Describe specifically what happened to beaker A during the experiment.

2. Describe specifically what happened to beaker B during the experiment.

3. Describe specifically what happened to beaker C during the experiment.

4. Describe specifically what happened to beaker D during the experiment.

Reflect1. What do you think caused the water

temperature in each beaker to change?2. The same amount of heat was being

applied to beaker A and beaker B. Why do you think the temperature did not change by the same amount at the same time?

3. The same amount of ice was being applied to beaker C and beaker D. Why do you think the temperature did not change by the same amount at the same time?

Reflect Continued4. Beaker A & C had the same volume of

water. Looking at your data what did these 2 beakers have in common?

5. Beaker B & D had the same volume of water. Looking at your data what did these 2 beakers have in common?

6. Which beaker had the most thermal energy & What was your evidence?

7. Which beaker had the least thermal energy & What was your evidence?

8. How does volume affect the thermal energy of the water?

Let the class discussion begin!

Take Cornell notes of the important points!

Let’s go back to our original question . . .

What 2 factors impact thermal energy?

(*HINT* The answers to Qs 10 and 11 should help you)

The 2 factors that affect thermal energy are

mass and temperature.

What is thermal energy?It is the energy of the motion of all the particles in an object. If the numbers in the beaker stand for the particles and how fast they move then the object’s thermal would be .

20 21 23 20 20 22

20 19 20 19 19 19 18 18 19

Thus MASS, the number of particles, will greatly impact an object’s thermal energy!

What if. . .What if you had a swimming pool and an ocean. . . Which has more mass?

The ocean has more mass. This also means that it has more thermal energy!

Which would have more thermal energy?

What if . . .What if I had 2 popsicles that have the same mass and one was sitting out on the counter and the other I heated with the blow dryer for 1 minute, which would have the most thermal energy?

The popsicle with the blow dryer would have the highest temperature. That popsicle would have more thermal energy!

Last one! This one is tougher!What if. . .

What if you had a pool that had a temp of 98 degrees and an ocean with a temp of 82 degrees. Which would have more thermal energy?

WHY?

The OCEAN would have more thermal energy!

The ocean has more than a million times the amount of particles so when you would add the energy amount of each individual particles it would be WAY MORE!