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- 1. Multiple Choice
An electroscope is a device which is used to find if an object is
charged
magnetic
free of cracks
Hot
- 2. Multiple Choice
When a glass rod is rubbed with a piece of silk cloth the rod
becomes positively charged while the cloth has a negative charge.
and the cloth both acquire positive charge.
and the cloth both acquire negative charge.
becomes negatively charged while the cloth has a positive charge.
- 3. Multiple Choice
Two charged objects are brought close to each other. Choose the most appropriate statement from the following options:
they may repel
they may attract
they may attract or repel depending on the type of charges they carry
there will be no effect
- 4. Multiple Choice
Which of the following is not likely to cause Tsunami?
A major nuclear explosion undersea
Earthquake
Volcanic eruption
Lightning
- 5. Multiple Choice
The device used to measure intensity of earthquakes is
seismograph
odometer
hygrometer
anemometer
- 6. Multiple Choice
The process of transfer of charges from a charged object to the earth is called
earthing
lightning
electron movement
oscillation motion
- 7. Multiple Choice
The process of electric discharge cannot occur between clouds and the earth.
true
false
- 8. Multiple Choice
Lightning occured when two charges they are:
Both positive
both negative
one negative and one positive
both neutral
- 9. Multiple Choice
Electric current is to be passed from one body to another. For this purpose, the two bodies must be joined by
cotton thread
plastic string
copper wire
rubber band
- 10. Multiple Choice
Which of the following is a negatively charged partice?
Electrons
Protons
Neutrons
All of the above
- 11. Multiple Choice
The place inside the earth's crust where the earthquake is generated is known as:
Epicenter
Focus
Fault
None of the above
- 12. Multiple Choice
Which is not a natural phenomena?
Earthquakes
Cyclones
Lightning
Earthing
- 13. Multiple Choice
Where is the lightning rod attached to protect the building from lightning?
On the top of the building
On the bottom of the building
In the middle of the building
All of these
- 14. Multiple Choice
Lightning always follows
rain pour
a thunder
the easiest path
a straight path
- 15. Multiple Choice
Which is the surest test of charge on a body?
Repulsion
Lightning
Combustion
Insulation
- 16. Multiple Choice
Which of the following occurs during lightning?
Acid rain
Nitrogen fixation
Green house effect
Earthing
- 17. Multiple Choice
Which of the following can be charged by rubbing?
Ebonite
Plastic
Amber
All the above
- 18. Multiple Choice
When two bodies are rubbed against each other, they acquire
equal and like charges
unequal and like charges
equal and unlike charges
unequal and unlike charges
- 19. Multiple Choice
It is a convention to call the charge acquired by a glass rod when it is rubbed with silk as __________
Negative
Positive
Neutral
Can be any one
- 20. Multiple Choice
During lightning actually _____________ takes place
Electric discharge
Electric charging
Electric charge accumulation
All of the above
- 21. Multiple Choice
To protect tall buildings from the damage of lightning, what can be done?
Not to build tall buildings
Install lightning conductors
Install many TV antennas
Have a roof top garden with tall trees
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