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Worksheetscharging by rubbing
Total questions: 18
Worksheet time: 13mins
Ms Pippin rubbed two balloons with a piece of wool. What will happen when the balloons are brought near each other?
The balloons will repel each other.
The balloons will attract each other.
The balloons will become positively (+) charged.
The balloons will pop.
During a lab a balloon was rubbed with a wooly fabric. This is an example of which type of charging?
conduction
friction
induction
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
Two charged objects, are brought close to each other. The two objects would-
Always repel each other.
Always attract each other.
Either atract or repel each other.
Neither attract more repel each other.
Lightning is a natural electrical discharge phenomenon.
True
False
The charges acquired by a glass rod, and the silk cloth with which it is rubbed, are equal and of the opposite sign.
False
True
A student is provided with four objects-
A) A plastic comb B) A copper rod C) A rubber balloon D) A woollen cloth
The object, that can be easily charged by rubbing, is the object labelled as-
A
B
C
D
A charged plastic comb (comb B) is brought near another similarly charged, and suspended, plastic comb (comb A). Then comb A would-
Remain unaffected
Move towards comb B
Move away from comb B
Start oscillating
Charging by rubbing is due to -
Friction
Induction
Conduction
Contact
_________ does not get charged up on rubbing.
Drinking straw
Glass rod
Metal pan
Ebonite rod
The scientist, who proved that lightning is electrical in nature was-
Benjamin Franklin
Joule
Davy
Ramford
Like charges always _______ each other.
Attract
Repel
A charged ebonite rod 'B' is brought near another similarly charged and suspended, ebonite rod 'A'. Then ebonite rod A, would-
Remain unaffected
Move towards rod B
Move away from rod B
Start oscillating
