Physics II Circuits Review

Which of the following statements are true about electric potential difference? Select all that apply.

• Potential difference can be expressed in units of Volts

• Potential difference can be expressed in units of Amperes

• Potential difference at a given location measures the rate at which charge flows past that point

• Charge flowing through a light bulb will experience a gain in electric potential.

• The electric potential is the difference in “push” or “pressure” on electrons across two locations.

Which of the following statements are true about electric current? List all that apply.

• Electric current is measured in units of Volts.

• Electric current is measured in units of Amperes.

• Electric current is defined as the number of Coulombs of charge which move past a point on a circuit.

• Electric current is equal to the number of Coulombs of charge which move past a point on a circuit per unit of time.

• The electric current diminishes in value as charge progresses to locations further and further from the + terminal of the battery.

Which of the following statements are true about an electric resistance? List all that apply.

• The resistance of an electric circuit is a measure of the overall amount of hindrance to the flow of charge through the circuit.

• The unit of resistance is the Ampere.

• The unit of resistance is the Ohm.

• A large resistance value indicates that the charge is encountering very little difficulty in moving through the circuit.

• Increasing the resistance of an electric circuit will cause the current in the circuit to decrease.

Which of the following statements are true about a series circuit? List all that apply.

• Series circuits are characterized by the fact that there is a single pathway by which charge can travel from the + terminal to the - terminal.

• Series circuits are characterized by the fact that there are multiple pathways by which charge can travel from the + terminal to the - terminal.

• The overall resistance of a circuit increases as more and more resistors are placed in series in the circuit.

• The total current in a circuit increases as more and more resistors are placed in series in the circuit.

Which of the following statements are true about a parallel circuit? List all that apply.

• Parallel circuits are characterized by the fact that there is a single pathway by which charge can travel from the + terminal to the - terminal.

• Parallel circuits are characterized by the fact that there are multiple pathways by which charge can travel from the + terminal to the - terminal.

• The overall resistance of a circuit increases as more and more resistors are placed in parallel in the circuit.

• The total current in a circuit increases as more and more resistors are placed in parallel in the circuit.

In which of the following situations will the light bulb light? Check all that apply.

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Tags

NGSS.MS-PS3-5

NGSS.MS-ETS1-1

The electric circuit shown above consists of a battery and three identical light bulbs. Which of the following statements are true concerning this circuit? List all that apply.

• The current through point X will be greater than that through point Z.

• The current through point Z will be greater than that through point Y.

• The current will be the same through points X, Y and Z.

• The current through point X will be greater than that through point Y.

• The current through point Y will be greater than that through point X.

The electric circuit shown above consists of a battery and three identical light bulbs. Which of the following statements are true concerning this circuit? List all that apply.

• The electric potential difference between X and Y is more than that between Y and Z.

• The electric potential difference between X and Z is more than that between Y and W.

• The electric potential difference between X and Y is the same as that between Y and Z

• The electric potential difference between X and Z is the same as that between Y and W.

• The electric potential difference between Y and W is more than that between X and Y.

Tags

NGSS.HS-PS2-4

The diagram above shows two identical resistors - R₁ and R₂ - placed in a circuit with a 12-Volt battery. These two resistors are connected in ____.

• Series

• Parallel

• A combination of both

• Neither series nor parallel

The diagram above shows two identical resistors - R₁ and R₂ - placed in a circuit with a 12-Volt battery. The electric potential difference (voltage drop) across each resistor is ___ Volts.

• 6 Volts

• 12 Volts

• 24 Volts

• Depends on the resistance of the resistors