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WorksheetsElectricity and Circuits
Total questions: 33
Worksheet time: 53mins
A material which does not allow the electricity to pass through it is _____
Conductor
Electric cell
Insulator
None of these
What do we call the flow of electricity around a circuit?
electric current
insulator
conductor
electric circuit
In order for electricity to flow, the circuit needs to be ________________.
open
closed
simple
parallel
What is the major difference between static electricity and current electricity?
Current electricity involves a continuous flow of elecrons; static electricity is a sudden transfer of protons
Current electricity can be deadly; static electricity is almost always safe
In current electricity, there's a single transfer of electrons; in static electricity, there's a steady flow of electrons
Current electricity involves a flow of electrons; static electricity involves a single transfer of electrons
An object that is neutral contains the same number of electrons and protons.
True
False
When the switch is closed the buzzer will sound because -
Which of these will repel each other?
Negatively charged balloon and positively charged sphere.
Negatively charged balloon and neutral sphere.
Negatively charged balloon and negatively charged sphere.
Negatively charged balloon and neutral wall.
What is an electric current?
a build up of electrons
the difference in charge between 2 points
the flow of electrons over a circuit
the opposition to flow of electrons
What is another name for the wires in a circuit?
Conductor
Load
Power Source
What is an electric current?
a build up of electrons
the difference in charge between 2 points
the flow of electrons over a circuit
the opposition to flow of electrons
What is an electrical circuit?
a whole bunch of wires
a broken path that electric charges can flow
a circuit board
a complete, unbroken path through which electric charges flow
When a switch is open...
the circuit is working and gives energy
the circuit is broken and charges cannot flow
the circuit is turning lights on
I don't know...ask Ms. Cednick
Is this a working circuit?
Yes
No
I'm not sure, I would need to test it myself.
Will the light bulbs light up in this image?
Yes, both of them will
Yes, but only the one on the right
No, neither of them will
Yes, but only the one on the left
Why electrical wiring usually are covered with a layer of plastic?
To make it look pretty
To help electricity flow along the wire
To make it safe
To add more energy
What are electrons?
Negatively charged subatomic particles
Positively charged subatomic particles
Neutrally-charged subatomic particles
Negatively charged atoms
How does rubber differ from most metals?
Rubber is a good conductor. Most metals are good insulators.
Rubber conducts electrons. Most metals conduct protons.
Rubber is a good insulator. Most metals are good conductors.
Rubber is a good power source. Most metals are good conductors.
What might happen if wires weren't insulated?
The power source would no longer provide a source of electrons.
We'd be in danger of harm from electric shocks.
Current electricity would become static electricity.
The circuit would be broken.
