Answers350CR Integrated ScienceEnergy Transformations

Electric Circuits Answers

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Which are disadvantages of series circuits? Check all that apply.

A
They are easy to design and build.
B
They are complicated to design and build.
C
A break in one wire causes all current to stop.
D
Current can flow through other branches if there is a break in one branch.
E
If one bulb goes out, the others stay lit.
F
If one bulb goes out, the others go out.
3
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After hearing about an accident on his normal route, Mr. Gujral checks for alternate routes to get to work.

A
a series circuit because there is more than one path
B
a series circuit because there is only one path
C
a parallel circuit because there is more than one path
D
a parallel circuit because there is only one path
4

Maria makes a graphic organizer to compare open, closed, and short circuits. She adds the labels shown.Label 1: Current flows in the circuit.Label 2: This forms when a bulb burns out.

Question illustration
A
Label 1: ZLabel 2: X
B
Label 1: YLabel 2: W
C
Label 1: XLabel 2: Y
D
Label 1: YLabel 2: Z
5

A circuit featuring multiple paths through which current can flow is best classified into which category?

A
a series circuit
B
an open circuit
C
a parallel circuit
D
a short circuit
6

The cause of a fire in a computer is described as an incorrectly wired circuit.

A
The wiring contained a short circuit, so the reduced resistance caused an increase in current.
B
The wiring contained an open circuit, so the reduced resistance caused an increase in current.
C
The wiring contained a closed circuit, so the current was redirected around the components that would have provided the proper resistance.
D
The wiring contained an open circuit, so the current was redirected around the components that would have provided the proper resistance.
7

A circuit that has only a single path for current to flow through is best classified into which category?

A
a series circuit
B
an open circuit
C
a parallel circuit
D
a short circuit
9

Humberto builds two circuits using identical components.Circuit 1: A series circuit with three lightbulbs Circuit 2: A parallel circuit with three lightbulbsHe then adds two more lightbulbs in a series with the bulbs in circuit 1 and two more lightbulbs on new branches in parallel with each bulb in circuit 2.

A
All bulbs in circuit 1 will shine at the same brightness as the original bulbs, while all bulbs in circuit 2 will be dimmer than the original bulbs.
B
All bulbs in circuit 1 will shine more dimly than the original bulbs, while all bulbs in circuit 2 will have the same brightness as the original bulbs.
C
The original bulbs will remain at their original brightness, but the bulbs added to circuit 1 will be dimmer than the bulbs added to circuit 2.
D
The original bulbs will remain at their original brightness, but the bulbs added to circuit 1 will be brighter than the bulbs added to circuit 2.
10

Wendy makes a graphic organizer to help herself apply Ohm’s law to electric circuits.Which formulas belong in the regions marked X and Y?

Question illustration
A
X: I = I1 + I2 + I3Y: Req = R1 + R2 + R3
B
X: Req = R1 + R2 + R3Y: I =
Option B
C
X: I = I1 = I2 = I3Y: V = V1 + V2 + V3
D
X: I = Y: V = V1 = V2 = V3
Option D

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