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- Multiple ChoicePlease save your changes before editing any questions.
A circuit that has a complete path for charge to flow.
open
closed
short
parallel
series
- Multiple ChoicePlease save your changes before editing any questions.
A circuit that has a break that prevents the flow of current.
open
closed
short
parallel
series
- Multiple ChoicePlease save your changes before editing any questions.
An unwanted electrical connection with very low resistance to current.
open
closed
short
parallel
series
- Multiple ChoicePlease save your changes before editing any questions.
A circuit that contains two or more branches.
open
closed
short
parallel
series
- Multiple ChoicePlease save your changes before editing any questions.
A circuit where moving charges can only follow a single path.
open
closed
short
parallel
series
- Multiple ChoicePlease save your changes before editing any questions.
____________circuits can produce high levels of current and dangerously high temperatures.
open
closed
short
parallel
series
- Multiple ChoicePlease save your changes before editing any questions.
Which of the following statements about "current" is INCORRECT?
Current is the flow of electrical charge.
In a metals, current is the flow of negatively charged particles (electrons).
In a battery, your body, or other wet places, current is the flow of both positive and negative charges.
When current flows through a closed circuit, charges flow in a complete loop through the wire and battery.
None of the other 4 statements are INCORRECT.
- Multiple ChoicePlease save your changes before editing any questions.
T/F - A fuse is a safety device that melts when current is too high, breaking a circuit.
True
False
- Multiple ChoicePlease save your changes before editing any questions.
A material that does not contain easily moveable charges.
Insulator
Conductor
- Multiple ChoicePlease save your changes before editing any questions.
A material that contains easily moveable charges.
Insulator
Conductor
- Multiple ChoicePlease save your changes before editing any questions.
There are no gaps in a _____________circuit, so charges can flow.
open
closed
short
parallel
series
- Multiple ChoicePlease save your changes before editing any questions.
In the GIZMO what kind of material are most conductors?
Metals
Plastics
Glass
Non metals
- Multiple ChoicePlease save your changes before editing any questions.
In the GIZMO did any conductor have a different effect on the light bulb than the others?
mechanical pencil lead
copper
plastic
glass
- Multiple ChoicePlease save your changes before editing any questions.
Which circuit is pictured below?ParallelIncompleteSeries - Multiple ChoicePlease save your changes before editing any questions.In a series circuit with more than one battery, which way below would work correctly?negative/negative, positive/positivenegative/positive, negative/positive
- Multiple ChoicePlease save your changes before editing any questions.This is an example of a ______ circuitSeriesParallelOpenDihexihedral
- Multiple ChoicePlease save your changes before editing any questions.This is an example of a _______ circuitopenseriesparallelsquare
- Multiple ChoicePlease save your changes before editing any questions.What kind of circuit is this?SeriesConsecutiveParallelTraining
- Multiple ChoicePlease save your changes before editing any questions.The picture shows an electrical circuit. This circuit is a series circuit because:It has 3 light bulbs.The same current flows through all three light bulbs.It uses a single battery.The electrical current is divided between the three light bulbs.
- Multiple ChoicePlease save your changes before editing any questions.What kind of circuit is this?seriesparallel
- Multiple ChoicePlease save your changes before editing any questions.This circuit has more than one loop. When one light goes out, the others stay on.closed circuitseries circuitparallel circuitopen circuit
- Multiple ChoicePlease save your changes before editing any questions.
Which of the following characteristics of "series circuits made up of 3 light bulbs" is INCORRECT.
In a series circuit, the bulbs are arranged in a single loop.
The brightness of the bulbs dim as you add more bulbs.
All the bulbs have the same brightness.
There are no parts of the circuit that have more current than other parts. (i.e current appears to be the same.)
None of the other statements are INCORRECT.
- Multiple ChoicePlease save your changes before editing any questions.
Which of the following characteristics of "parallel circuits made up of 3 light bulbs" is INCORRECT.
In a parallel circuit, the bulbs are arranged in a 3 individual loops.
The brightness of the bulbs don't dim as you add more bulbs.
All the bulbs have the same brightness.
There are parts of the circuit that have more current than other parts.
None of the other statements are INCORRECT.
- Multiple ChoicePlease save your changes before editing any questions.
When one replaces one of the light bulbs in a parallel circuit with a wire, what is observed?
The loop of wire turns red and all the current goes through this loop.
The light bulbs go out.
This situation is called a short circuit.
None of the other 3 statements are INCORRECT.
- Multiple ChoicePlease save your changes before editing any questions.
T/F The red arrows that indicate enormous current. This is very dangerous because so much current will heat up the wire and could even start a fire!
True
False
- Multiple ChoicePlease save your changes before editing any questions.
How does a fuse make the circuit safer?
In a short circuit, the high current melts the
fuse and breaks the circuit. This prevents fires and other damage.
In a short circuit, the low current melts the
fuse and breaks the circuit. This prevents fires and other damage
- Multiple ChoicePlease save your changes before editing any questions.If a string of Christmas lights are wired in series, what will happen if one bulb burns out?All the lights will go out.Only the burnt out light will go out.Every other light will go out.only the first and burnt light will go out.
- Multiple ChoicePlease save your changes before editing any questions.If a string of Christmas lights are wired in parallel, what will happen if one bulb burns out?All the lights will go out.Only the burnt out light will go out.Every other light will go out.only the first and burnt light will go out.
- Multiple ChoicePlease save your changes before editing any questions.The movement of electrons round and round a path.circuitcurrentelectronvoltage
- Multiple ChoicePlease save your changes before editing any questions.The particle whose movement defines electricitycircuitcurrentelectronvoltage