TEST!!
Which statement describes one feature of a closed circuit?
Charges do not flow.
Bulbs will not shine.
The circuit is broken.
The circuit is complete.
The circuit is complete.
Look at the circuit diagram.
A rectangular box of lines with the long horizontal side. The left side has a circle with an X in it. The top side from left has a small circle connected to another small circle by a horizontal line and then a circle with an X in it. The right side from the top has a small circle connected to another small circle by a horizontal line and then a circle with an X in it. The bottom side has a stack of vertical lines, which are from left short, very short, short, very short.
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
Based on the given description of the circuit diagram, it appears to show one switch, one resistor, and three light bulbs.
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.
The electric charges move from the energy source through the buzzer and back to the energy source.
Which device provides electrical energy to run an electric circuit?
the wire
the switch
the battery
the light bulb
The device that provides electrical energy to run an electric circuit is the battery.
Chang wants to build a circuit that will light up a bulb from a flashlight, and has a battery, switch, wire, and a light bulb.
Which component would Chang use as the source of energy?
the battery
the switch
the wire
the light bulb
Chang would use the battery as the source of energy in the circuit.
A large cooler is filled with water, as shown below.
A large yellow cooler with a white valve at its bottom.
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.