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WorksheetsElectricity Grade 8
Total questions: 16
Worksheet time: 24mins
Which of the following is the best example of an electrical conductor?
tire
steel
plastic
none of the above
Which best briefly summarizes the law of electric charges?
charges always attract
charges always repel
unlike charges attract
unlike charges repel
Which of the following statements is correct about conductor and insulator?
the electrons in conductor do not move around
the electrons in insulator do not move around
the electric current can pass through the insulator
the electric current can pass through both insulator and conductor
Electric circuit is a path for transmitting electric current
true
false
What is the main difference between parallel and series circuits?
in series circuit, charges flow one path; charges in parallel circuit flow in multiple paths
in series circuit, charges flow multiple paths; charges in parallel circuit flow in one path
in parallel circuit, several lamps work separately; in series circuit, several lamps work independently
in parallel circuit, if one lamp breaks then the other lamps will also off; in series circuit, if one lamp breaks then the other lamps still works
What kind of circuit is this?
series
parallel
If a substance has a higher number of electrons than protons on its surface, what type of charge does it have?
neutral charged
positively charged
negatively charged
no charges at all
A ______ opens and closes a circuit.
cell
conductor
wire
switch
What is this symbol for?
light bulb
wire
cell
battery
When you remove a bulb from a three bulb circuit, and the other two bulbs go off, then the bulbs must have been connected in parallel.
true
false
Electric current is the flow of _________.
protons
electrons
neutrons
none of them
Electric current is measured in....
watts
joules
newtons
amperes
When one light bulb burns out, the rest stay lit. The bulbs must be found in ....
series circuit
parallel circuit
Carbon is The only non-metal material that can conduct electricity.
true
false
What kind of circuit is this?
series
parallel
Are the currents at A1 and A2 same?
Yes, they are same
No, they are different
