Electric Circuits

Mr. Anderson explains electric circuits, focusing on voltage, current, and circuit elements like resistors, capacitors, and switches. Using a water analogy, he illustrates how these elements function. The video includes a PhET simulation to demonstrate Ohm's Law and explores series and parallel circuits, highlighting differences in voltage and current distribution. Calculations for resistance and current in both circuit types are also covered.

What are the two main concepts to understand in an electric circuit?

• Resistance and power

• Voltage and current

• Current and power

• Voltage and resistance

In the water flow analogy, what does the battery represent?

• A pump

• A pipe

• A valve

• A dam

What happens to the current when a resistor is added to a circuit?

• It increases

• It decreases

• It stops completely

• It remains the same

What is the effect of a capacitor in a circuit?

• It stores charge

• It acts as a switch

• It decreases voltage

• It increases current

In a series circuit, what happens if one element is removed?

• The entire circuit stops working

• Only the removed element stops working

• The circuit continues to function

• The voltage increases

How is the total resistance calculated in a series circuit?

• By multiplying all resistances

• By dividing the largest resistance by the smallest

• By adding all resistances

• By subtracting the smallest resistance from the largest

In a parallel circuit, how does the voltage across each element compare?

• It is different for each element

• It is the same for each element

• It is zero for each element

• It doubles for each element