Circuits Quiz Review

What is the continuous flow of electric charge?

• Voltage
• Resistance
• Potential Difference
• Current

What is the tendency of a material to oppose the flow of charge?

• Voltage
• Resistance
• Potential Difference
• Current

What is a path through which electric charges travel?

• Electric Circuit
• Resistance
• Voltage
• Electric Current

What is the unit for resistance?

• Volt
• Ampere
• Ohm
• Coulomb

What is the unit for measuring electric current?

• Volt
• Ampere
• Ohm
• Coulomb

Which statement correctly describes the formation of an electric current?

• A resistance causes electric charges to move from lower to higher potential.
• A voltage causes electric charges to move from lower to higher potential.
• A resistance causes electric charges to move from higher to lower potential.
• A voltage causes electric charges to move from higher to lower potential.

Andrea uses a long extension cord to plug a lamp into a wall outlet in the next room. What effect will the extension cord have on the circuit?

• It will decrease the resistance of the circuit.
• It will increase the voltage of the outlet.
• It will increase the resistance in the circuit.
• It will decrease the voltage of the outlet.

A circuit has a current of 3.6 A and a resistance of 5.0 Ω. What is the voltage applied to the circuit (V=IR)?

• 0.72 Volts
• 1.4 Volts
• 8.6 Volts
• 18 Volts

For a constant voltage, how is the resistance related to the current?

• Resistance is inversely proportional to current, so when the resistance doubles, the current is cut in half.
• Resistance is directly proportional to current, so when the resistance doubles, the current is cut in half.
• Resistance is inversely proportional to current, so when the resistance doubles, the current doubles.
• Resistance is directly proportional to current, so when the resistance doubles, the current doubles.

Jonas sees this symbol in a circuit diagram. Which circuit component does the symbol represent?

• Resistor
• Bulb
• Battery
• Voltmeter