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20 questions
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- Q1What is the unit of measurement for electric charge?Ampere (A)Volt (V)Coulomb (C)Ohm (Ω)30sSC9.E.1
- Q2What does an electric current of 1 ampere represent?1 joule of energy transferred.1 ohm of resistance.1 coulomb of charge flowing per second.1 volt of potential difference.30s
- Q3In which direction does conventional current flow in a circuit?From the negative end of the cell to the positive end.In both directions simultaneously.It depends on the type of circuit.From the positive end of the cell to the negative end.30s
- Q4How is the current in a series circuit related throughout the circuit?It varies depending on the resistance of each component.It is the same all the way around the circuit.It splits between the branches of the circuit.It decreases as it passes through each component.30s
- Q5What is the relationship between current and charge flow?Current is the potential difference across a component.Current is the energy transferred per unit charge.Current is the opposition to the flow of charge.Current is the rate of flow of electric charge.30s
- Q6How is the current in a parallel circuit related to the total current leaving the cell?The current in the branches adds up to the total current leaving the cell.The current is the same in all parts of a parallel circuit.The current in each branch is half of the total current.The current in each branch is equal to the total current.30s
- Q7What is the definition of potential difference (voltage)?The rate at which work is done in a circuit.The opposition to the flow of current.The amount of charge flowing per second.The amount of energy transferred per unit charge.30s
- Q8What is the unit of measurement for potential difference?Volt (V)Coulomb (C)Ohm (Ω)Ampere (A)30s
- Q9What does a potential difference of 1 volt mean?1 coulomb of charge is stored.1 ohm of resistance is present.1 ampere of current is flowing.1 joule of energy is transferred per coulomb of charge.30s
- Q10How is potential difference shared in a series circuit?Potential difference is only present across the power source.Potential difference is shared across components in series.Each component in series has the same potential difference.Potential difference increases as the current flows through components in series.30s
- Q11How is potential difference distributed in a parallel circuit?The branch with the highest resistance has the highest potential difference.The potential difference across each component is the same.Potential difference is shared equally between the branches.Potential difference decreases as the current splits between branches.30s
- Q12If a cell has a potential difference of 3 volts, how much energy is transferred per coulomb of charge passing through it?3 joules4 joules1 joule2 joules30s
- Q13What is Ohm's Law?The current in a circuit is directly proportional to the potential difference and inversely proportional to the resistance.The current in a circuit is directly proportional to the resistance.The potential difference in a circuit is inversely proportional to the current.The resistance in a circuit is equal to the product of current and potential difference.30s
- Q14What is the formula for calculating resistance using Ohm's Law?Resistance = Energy / Potential DifferenceResistance = Current x Potential DifferenceResistance = Charge / TimeResistance = Potential Difference / Current30s
- Q15If a component has a potential difference of 12 volts and a resistance of 4 ohms, what is the current flowing through it?3 amperes4 amperes2 amperes1 ampere30s