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Class 8 Science
Some Natural Phenomena
Quiz 1
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The process of transfer of charges from a charged object to the earth is called
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earthing
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lightning
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oscillation motion
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electron movement
Explanation
earthing
The power of an earthquake is expressed on a scale called
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seismic scale
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iron scale
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richter scale
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large scale
Explanation
richter scale
Which instrument is used to measure earthquake?
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Richter scale
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Seismograph
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Polygraph
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None of these
Explanation
Seismograph
Which is not a natural phenomena?
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Earthquakes
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Cyclones
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Lightning
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Earthing
Explanation
Earthing
How many types of charges are gained by rubbing objects?
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2
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1
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3
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4
Explanation
2
Where is the lightning rod attached to protect the building from lightning?
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On the top of the building
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On the bottom of the building
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In the middle of the building
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All of these
Explanation
On the top of the building
Lightning always follows
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a thunder
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rain pour
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the easiest path
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a straight path
Explanation
a thunder
Tsunami means
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earthquake
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floods
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earthquake under the sea
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eruption of volcano in a sea
Explanation
earthquake under the sea
The waves produced on the earth’s surface is called
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seismic wave
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longitudinal wave
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Micro wave
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Radio wave
Explanation
seismic wave
Amber is a
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metal
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rubber
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resin
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sugar
Explanation
resin
Which is the surest test of charge on a body?
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Repulsion
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Lightning
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Combustion
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Insulation
Explanation
Repulsion
Which of the following can be charged with static electricity ?
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Metal
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Alloy
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Insulator
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Semiconductor
Explanation
Insulator
Which of the following occurs during lightning?
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Acid rain
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Nitrogen fixation
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Green house effect
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Earthing
Explanation
Nitrogen fixation
Which of the following can be charged by rubbing?
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Ebonite
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Plastic
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Amber
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All of these
Explanation
All of these
When two bodies are rubbed against each other, they acquire
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equal and like charges
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equal and unlike charges
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unequal and like charges
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unequal and unlike charges
Explanation
equal and unlike charges
To protect tall buildings from the damage of lightning, what can be done?
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Not to build tall buildings
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Install lightning conductors
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Install many TV antennas
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Have a roof top garden with tall trees
Explanation
Install lightning conductors
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