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WorksheetsSome Natural Phenamenon
Total questions: 15
Worksheet time: 8mins
Charges can be detected by using
a thermometer
an electroscope
a barometer
A lightning conductor usually has a rod made of
copper
glass
pastic
A negatively-charged object will attract
only negatively charged objects
only positively charged objects
both positively charged objects and neutral objects
Static electricity is the electricity in which
charges are in motion
charges are at rest
Both the options
Identify the Y shaped structure in the given figure
Lightning rod
Plastic rod
Water pipe
Similar charges
Attract each other
Repel each other
Neither attract nor repel
When two clouds having a huge amount of positive and negative charges approach each other, then
the air becomes good conductor of electricity
the air becomes bad conndcutor of electricity
None of the above
Identify the figure which is not suitable during thunder storms
Identify the figure which you are supposed do during lightning.
Electric current is to be passed from one body to another. For this purpose the two bodies must be joined by cotton thread (c) copper wire (b) plastic string (d) rubber band
Cotton thread
rubber band
copper wire
The aluminium strips in an electroscope are replaced by plastic strips and a charged body is brought in contact with the metal clip. will the electroscope work?
Yes
No
I don't know
Plastic straws A and B are rubbed with dry cotton cloth. What will happen if they are brought near each other?
Attract each other
Repel each other
Nothing will happen
What is the reason?
it is only a play
Static electricity
Electricity
During the construction of a building the lightning conductor was left hanging in the air by mistake. Would the lightning conductor be still effective?
Yes
I can't guess
No
Identify the person
Thales
Coulomb
Benjamin Franklin
