There are three levels of difficulty by which the student can progress through the Concept Builder. Those three difficulty levels are differentiated as follows:

**Apprentice Level**: Groups 1-4. Includes a doubling or tripling of either the voltage or the resistance.**Masters Level**: Groups 1-8. One variable is varied at a time. Variations in voltage and resistance can include doubling, tripling, halving, and "one-thirding."**Wizard Level**: Groups 1-12. Includes the first eight Question Groups plus four additional groups in which two variables are altered.

The questions from each group are shown below. Teachers are encouraged to view the questions in order to judge which level of difficulty is most appropriate for their classes. We recommend providing students two or more options. For instance, it would be profitable for a student to complete the Concept Builder at the

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The current in the wires of a circuit is 60.0 milliAmps. If the voltage impressed across the ends of the circuit were doubled (with no change in its resistance), then its new current would be _____ milliAmps.

The current in the wires of a circuit is 120.0 milliAmps. If the voltage impressed across the ends of the circuit were doubled (with no change in its resistance), then its new current would be _____ milliAmps.

The current in the wires of a circuit is 180.0 milliAmps. If the voltage impressed across the ends of the circuit were doubled (with no change in its resistance), then its new current would be _____ milliAmps.

The current in the wires of a circuit is 60.0 milliAmps. If the voltage impressed across the ends of the circuit were tripled (with no change in its resistance), then its new current would be _____ milliAmps.

The current in the wires of a circuit is 120.0 milliAmps. If the voltage impressed across the ends of the circuit were tripled (with no change in its resistance), then its new current would be _____ milliAmps.

The current in the wires of a circuit is 180.0 milliAmps. If the voltage impressed across the ends of the circuit were tripled (with no change in its resistance), then its new current would be _____ milliAmps.

The current in the wires of a circuit is 60.0 milliAmps. If the resistance of the circuit were doubled (with no change in voltage), then its new current would be _____ milliAmps.

The current in the wires of a circuit is 120.0 milliAmps. If the resistance of the circuit were doubled (with no change in voltage), then its new current would be _____ milliAmps.

The current in the wires of a circuit is 180.0 milliAmps. If the resistance of the circuit were doubled (with no change in voltage), then its new current would be _____ milliAmps.

The current in the wires of a circuit is 60.0 milliAmps. If the resistance of the circuit were tripled (with no change in voltage), then its new current would be _____ milliAmps.

The current in the wires of a circuit is 120.0 milliAmps. If the resistance of the circuit were tripled (with no change in voltage), then its new current would be _____ milliAmps.

The current in the wires of a circuit is 180.0 milliAmps. If the resistance of the circuit were tripled (with no change in voltage), then its new current would be _____ milliAmps.

The current in the wires of a circuit is 60.0 milliAmps. If the voltage impressed across the ends of the circuit were halved (i.e., one-half of the original voltage) (with no change in its resistance), then its new current would be _____ milliAmps.

The current in the wires of a circuit is 120.0 milliAmps. If the voltage impressed across the ends of the circuit were halved (i.e., one-half of the original voltage) (with no change in its resistance), then its new current would be _____ milliAmps.

The current in the wires of a circuit is 180.0 milliAmps. If the voltage impressed across the ends of the circuit were halved (i.e., one-half of the original voltage) (with no change in its resistance), then its new current would be _____ milliAmps.

The current in the wires of a circuit is 60.0 milliAmps. If the voltage impressed across the ends of the circuit were one-third of the original voltage (with no change in its resistance), then its new current would be _____ milliAmps.

The current in the wires of a circuit is 120.0 milliAmps. If the voltage impressed across the ends of the circuit were one-third of the original voltage (with no change in its resistance), then its new current would be _____ milliAmps.

The current in the wires of a circuit is 180.0 milliAmps. If the voltage impressed across the ends of the circuit were one-third of the original voltage (with no change in its resistance), then its new current would be _____ milliAmps.

The current in the wires of a circuit is 60.0 milliAmps. If the resistance of the circuit were halved (i.e., reduced to one-half the original value) (with no change in voltage), then its new current would be _____ milliAmps.

The current in the wires of a circuit is 120.0 milliAmps. If the resistance of the circuit were halved (i.e., reduced to one-half the original value) (with no change in voltage), then its new current would be _____ milliAmps.

The current in the wires of a circuit is 180.0 milliAmps. If the resistance of the circuit were halved (i.e., reduced to one-half the original value) (with no change in voltage), then its new current would be _____ milliAmps.

The current in the wires of a circuit is 60.0 milliAmps. If the resistance of the circuit were reduced to one-third the original value (with no change in voltage), then its new current would be _____ milliAmps.

The current in the wires of a circuit is 120.0 milliAmps. If the resistance of the circuit were reduced to one-third the original value (with no change in voltage), then its new current would be _____ milliAmps.

The current in the wires of a circuit is 180.0 milliAmps. If the resistance of the circuit were reduced to one-third the original value (with no change in voltage), then its new current would be _____ milliAmps.

The current in the wires of a circuit is 60.0 milliAmps. If the voltage impressed across the ends of the circuit were doubled and the resistance were tripled, then its new current would be _____ milliAmps.

The current in the wires of a circuit is 120.0 milliAmps. If the voltage impressed across the ends of the circuit were doubled and the resistance were tripled, then its new current would be _____ milliAmps.

The current in the wires of a circuit is 180.0 milliAmps. If the voltage impressed across the ends of the circuit were doubled and the resistance were tripled, then its new current would be _____ milliAmps.

The current in the wires of a circuit is 60.0 milliAmps. If the voltage impressed across the ends of the circuit were tripled and the resistance were doubled, then its new current would be _____ milliAmps.

The current in the wires of a circuit is 120.0 milliAmps. If the voltage impressed across the ends of the circuit were tripled and the resistance were doubled, then its new current would be _____ milliAmps.

The current in the wires of a circuit is 180.0 milliAmps. If the voltage impressed across the ends of the circuit were tripled and the resistance were doubled, then its new current would be _____ milliAmps.

The current in the wires of a circuit is 60.0 milliAmps. If the voltage impressed across the ends of the circuit were tripled and the resistance were halved, then its new current would be _____ milliAmps.

The current in the wires of a circuit is 120.0 milliAmps. If the voltage impressed across the ends of the circuit were tripled and the resistance were halved, then its new current would be _____ milliAmps.

The current in the wires of a circuit is 180.0 milliAmps. If the voltage impressed across the ends of the circuit were tripled and the resistance were halved, then its new current would be _____ milliAmps.

The current in the wires of a circuit is 60.0 milliAmps. If the voltage impressed across the ends of the circuit was doubled and the resistance was one-third the original value, then its new current would be _____ milliAmps.

The current in the wires of a circuit is 120.0 milliAmps. If the voltage impressed across the ends of the circuit was doubled and the resistance was one-third the original value, then its new current would be _____ milliAmps.

The current in the wires of a circuit is 180.0 milliAmps. If the voltage impressed across the ends of the circuit was doubled and the resistance was one-third the original value, then its new current would be _____ milliAmps.