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WorksheetsElectricity Circuits
Total questions: 15
Worksheet time: 8mins
Which statements describe a closed circuit? Check all that apply.
Bulbs will shine.
Bulbs will not shine.
The circuit is incomplete.
The circuit is complete.
Charges flow.
In a movie, a character cuts a wire, which stops the countdown timer of a bomb. What does cutting the wire do the circuit?
It opens the circuit so that the electric charges do not flow to the timer.
It closes the circuit so that electric charges do not flow to the timer.
It opens the circuit so that electric charges flow to the timer.
It closes the circuit so that electric charges flow to the timer.
When an electric circuit operates, a buzzer makes a sound. What happens to the electric charges in this circuit?
The electric charges move from the energy source and are used up at the switch.
The electric charges move from the energy source and are used up at the buzzer.
The electric charges move from the buzzer through the energy source and back to the buzzer.
The electric charges move from the energy source through the buzzer and back to the energy source.
Chang wants to build a circuit that will light up the bulb from a flashlight. Which component could Chang leave out and still light up the bulb?
the switch
the battery
the wire
the light bulb
Roshan describes the basic parts of an electric circuit using a shower as a model. Which part of a circuit does the water pipe represent?
the wire
the switch
the battery
the resistor
Which device manages the flow of current in an electric circuit?
the wire
the switch
the battery
the light bulb
Jamal draws the circuit diagram shown.
How many of each component are shown in the diagram? Check all that apply.
one battery
two switches
two batteries
two resistors
three light bulbs
A large cooler is filled with water, as shown below.
How does the valve on the cooler compare with the switch in an electric circuit?
Opening the valve allows water to flow, just like opening a switch allows charges to flow.
Opening the valve stops the flow of water, but closing a switch stops the flow of charges.
Closing the valve stops the flow of water, but opening a switch stops the flow of charges.
Closing the valve allows water to flow, just like closing a switch allows charges to flow.
What symbol would best represent an electric fan in an electric circuit?
Patty makes a table of the symbols used for the parts of an electric circuit.
What label should Patty place in the marked cell?
battery
switch
resistor
bulb
Look at the circuit diagram.
What does the diagram show?
one battery, two light bulbs, and three resistors
one battery, two switches, and three light bulbs
one switch, one resistor, and three light bulbs
one switch, one light bulb, and three batteries
Which statement describes an open circuit?
The circuit is incomplete and broken, and the lights in the circuit shine.
The circuit is complete and unbroken, and the lights in the circuit shine.
The circuit is incomplete and broken, and the lights in the circuit do not shine.
The circuit is complete and unbroken, and the lights in the circuit do not shine.
Which device provides electrical energy to run an electric circuit?
the wire
the switch
the battery
the light bulb
How does a parallel circuit change when a branch is added?
The total resistance increases, so the current in the circuit decreases.
The total resistance decreases, so the current in the circuit increases.
The total resistance increases, so bulbs shine at a lower brightness.
The total resistance decreases, so bulbs shine at a higher brightness.
A symbol from a circuit diagram is shown. What does this symbol represent?
a switch
a light bulb
a wire
a battery
