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WorksheetsPhysics: Circuits
Total questions: 36
Worksheet time: 24mins
The symbol shown represents a
battery
resistor
capacitor
transistor
The bulbs in the circuit shown are connected __________.
in series
in parallel
to my phone
The bottom of the light bulb is resting on the positive end of the battery. Does the bulb light?
yes
no
only if it's dark outside
Are bulbs B and C connected in series or in parallel?
There is no way to tell
Parallel
Series
The three bulbs are identical and the two batteries are identical. Compare the brightnesses of the bulbs.
A > B > C
A > C > B
A > B = C
A < B = C
A = B = C
Are bulbs B and C connected in series or in parallel?
There is no way to tell
Parallel
Series
The three bulbs are identical and the two batteries are identical. Compare the brightnesses of the bulbs.
A > B > C
A > C > B
A > B = C
A < B = C
A = B = C
The potential difference (voltage) across the 10 Ω resistor is
30 V
20 V
15 V
10 V
5 V
What thing(s) about the resistors in this circuit is/are the same for all three?
Current I
Potential difference ΔV
Resistance R
A and B
The battery current I is
3 A
2 A
1 A
2/3 A
1/2 A
The battery current I is
3 A
2 A
1 A
2/3 A
1/2 A
When the switch closes, the current from the battery
increases
stays the same
decreases
What is the reading on the voltmeter?
6 V
3 V
2 V
The amount of current in a circuit depends on the
voltage across the circuit.
electrical resistance of the circuit.
Both of these.
None of these.
When 110 volts are sent across a 22-ohm resistor, the current in the resistor is
5 A
10 A
132 A
2420 A
In a simple circuit consisting of a single lamp and a single battery, when current in the lamp is 2 amperes, the current in the battery is
half, 1 A
2 A
dependent on internal battery resistance.
Not enough information to say.
In a circuit with two lamps in parallel, if the current in one lamp is 2 amperes, the current from the battery is
half, 1 A
2 A
more than 2 A
Not enough information to say.
One way to prevent overloading circuits in your home is to
operate fewer devices at the same time.
change the wiring from parallel to series for troublesome devices.
find a way to bypass the fuse or circuit breaker.
You are watching a circuit that has several light bulbs connected to each other in series. A battery is supplying voltage to the circuit, and all three bulbs are lit. What happens if one of the light bulbs is unscrewed and taken out of the circuit?
the rest of the light bulbs will go out
the rest of the light bulbs will stay lit
the remaining bulbs go out for a second, then light back up
You are watching a circuit that has several light bulbs connected to each other in parallel. A battery is supplying voltage to the circuit, and all three bulbs are lit. What happens if one of the light bulbs is unscrewed and taken out of the circuit?
the rest of the light bulbs will go out
the rest of the light bulbs will stay lit
the remaining bulbs go out for a second, then light back up
When resistors are put in parallel with each other, their total (equivalent) resistance is
larger than that of any one resistor
smaller than the resistance of any of the resistors
the same as the resistance of one resistor
When resistors are put in series next to other, their total (equivalent) resistance is
larger than that of any one resistor
smaller than the resistance of any of the resistors
the same as the resistance of one resistor
How is the wiring in your home set up?
All outlets are in parallel with other outlets in the room
All outlets are in series with other outlets in the room
It depends on the room
You are in the lab measuring voltage across three light bulbs. Each light bulb has the exact same voltage, and that voltage matches the voltage of the battery. What type of circuit do you know it must be?
series
parallel
no way to tell
You are in the lab measuring current across three light bulbs. Each light bulb has the exact same amount of amps running through it, and that current matches the current coming from the battery. What type of circuit do you know it must be?
series
parallel
no way to tell
In the equation V = IR, the "I" stands for _________
Voltage
Current
Resistance
Charge
In the equation V = IR, the "V" stands for _________
Voltage
Current
Resistance
Charge
In the equation V = IR, the "R" stands for _________
Voltage
Current
Resistance
Charge
What SI units are used to measure Current?
Ohms (Ω)
Volts (V)
Amperes or Amps (A)
Coulombs (C)
Joules (J)
What SI units are used to measure Resistance?
Ohms (Ω)
Volts (V)
Amperes or Amps (A)
Coulombs (C)
Joules (J)
What SI units are used to measure Voltage (Potential Difference)?
Ohms (Ω)
Volts (V)
Amperes or Amps (A)
Coulombs (C)
Joules (J)
What SI units are used to measure power?
Joules
Newtons
Watts
Ohms
What SI units are used to measure electrial energy?
Only joules and nothing else
Only kilowatt-hours and nothing else
Either joules or kilowatt-hours, depending on the usage
Amps
Suzanne runs her space heater for 210 minutes today while she does her homework. The heater is rated for 1650 watts. How many kilowatt-hours of energy does she use during this one study session?
346,500 kWh
346.5 kWh
5775 kWh
5.78 kWh
What is a circuit breaker?
A safety device to automatically interrupt/ open a circuit in case of too much current.
A conductor that is used to stop resistance from adding up in a circuit.
It's similar to a switch that you use to turn lights on and off every day.
A battery that converts AC power to DC power.
What's the difference between a fuse and a circuit breaker?
A fuse needs to be activated by a person and is not automatic.
A fuse is included in each AA battery, while circuit breakers are inside 9-V batteries.
They are both automatic safety features, but a fuse needs to be replaced while a circuit breaker can be reset.
