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1. Why do electrons (blue dots) move? Draw a diagram of the battery, label the flow of electrons. The flow of current (+) is opposite; draw this and note if toward or away from + terminal of the battery.

2. What does the Ammeter (on the left) measure? How is this shown in the sim?

3. What role do the "green dots" in the resistor play in the sim? What do you think they represent? What does this tell you about the effect of resistors in a circuit?

4. Increase the resistance (# green dots). What affect does this have on temperature? WHY?

5. When the circuit gets hotter, what affect does this have on current? Explain using kinetic-molecular theory.

6. To make the circuit "cold", what do you need to do? WHY?

7. Describe the relationship between voltage and temperature.

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