+
ward
'
s
science
Page 5
Discussion and Conclusions
Seebeck Effect
1. Describe the energy transformations that take place in the Seebeck mode.
2. Did you notice a change in the movement of the fan when the temperature is varied? Why does the fan
spin faster when the water temperature increases?
3. If you wanted to make the fan turn even faster, what are two different things you could do to increase the voltage
from the thermoelectric module?
4. If you were an engineer, what useful thing could you design that would use the Seebeck effect?
Peltier effect
1. Describe the energy transformations that take place in the Peltier effect mode.
2. What is the effect of increasing the voltage on the temperature of the surface of the thermoelectric module?
What happens to the back side of the thermoelectric module?
3. Propose an explanation for the change in temperature when the voltage from the power supply is reversed.
4. If you were an engineer, what useful thing could you design that uses the Peltier effect?
Thermal Energy Transfer Demonstration
Student Worksheet
Name: Class: Date:
