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- 1. Multiple Choice
The process of transfer of charges from a charged object to the earth is called
earthing
lightning
oscillation motion
electron movement
- 2. Multiple Choice
The power of an earthquake is expressed on a scale called
seismic scale
iron scale
Richter scale
large scale
- 3. Multiple Choice
Which instrument is used to measure earthquake?
Richter scale
Seismograph
Polygraph
None of these
- 4. Multiple Choice
Which is not a natural phenomena?
Earthquakes
Cyclones
Lightning
Earthing
- 5. Multiple Choice
How many types of charges are gained by rubbing objects?
1
2
3
4
- 6. 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
- 7. Multiple Choice
Lightning always follows
rain pour
a thunder
the easiest path
a straight path
- 8. Multiple Choice
Tsunami means
earthquake
floods
earthquake under the sea
eruption of volcano in a sea
- 9. Multiple Choice
The waves produced on the earth’s surface is called
seismic wave
longitudinal wave
Micro wave
Radio wave
- 10. Multiple Choice
Which is the surest test of charge on a body?
Repulsion
Lightning
Combustion
Insulation
- 11. Multiple Choice
Which of the following occurs during lightning?
Acid rain
Nitrogen fixation
Green house effect
Earthing
- 12. Multiple Choice
Which of the following can be charged with static electricity ?
Metal
alloy
Semiconductor
Insulator
- 13. Multiple Choice
Which of the following can be charged by rubbing?
Ebonite
Plastic
Amber
All the above
- 14. 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
- 15. 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
- 16. Multiple Choice
A device used to test whether an object is carrying charge or not is called ______.
Electrometer
Charge meter
Electroscope
Chargoscope
- 17. Multiple Choice
During lightning actually _____________ takes place
Electric discharge
Electric charging
Electric charge accumulation
All of the above
- 18. Multiple Choice
During a thunderstorm which action may be done?
Using Telephone having cord
Switching on / off electric lights
Using a mobile phone
None of the above
- 19. Multiple Choice
During thunderstorm it is safer to
Carry an open umbrella
Take shelter under short trees
Take shelter under tall trees
Stand in open fields
- 20. 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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