Test: Some Natural Phenomena - 4


20 Questions MCQ Test Class 8 Science by VP Classes | Test: Some Natural Phenomena - 4


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This mock test of Test: Some Natural Phenomena - 4 for Class 8 helps you for every Class 8 entrance exam. This contains 20 Multiple Choice Questions for Class 8 Test: Some Natural Phenomena - 4 (mcq) to study with solutions a complete question bank. The solved questions answers in this Test: Some Natural Phenomena - 4 quiz give you a good mix of easy questions and tough questions. Class 8 students definitely take this Test: Some Natural Phenomena - 4 exercise for a better result in the exam. You can find other Test: Some Natural Phenomena - 4 extra questions, long questions & short questions for Class 8 on EduRev as well by searching above.
QUESTION: 1

The resin which produces spark is

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QUESTION: 2

The like charges:

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QUESTION: 3

The shaking of earth is called:

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QUESTION: 4

Lightning occurs due to:

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QUESTION: 5

Interaction of charges is called:

Solution:

Lightning is a naturally occurring electrostatic discharge during which two electrically charged regions in the atmosphere.

QUESTION: 6

Sparks can be seen on an electric pole when wires become

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QUESTION: 7

Benjamin Franklin showed lightning in

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QUESTION: 8

The charge acquired by a glass rod when it is rubbed with a silk is

Solution:

When you are rubbing the glass rod with the silk cloth, electrons are stripped away from the atoms in the glass and transferred to the silk cloth. This leaves the glass rod with more positive than negative charge, so you get a net positive charge.

QUESTION: 9

Lightning occurred when two charges meet they are

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QUESTION: 10

Lightning conductor

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QUESTION: 11

We cannot predict cyclones.

Solution:

Scientists use a measure called Potential intensity to help them forecast the strength of trophical cyclones, aka hurricanes or typhoons.
Potential intensity, a theoretical framework of large - scale ocean - atmosphere processes, helps scientists forecast the power of a cyclone.

QUESTION: 12

 We cannot predict earthquake. 

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QUESTION: 13

We can use wired telephone at the time of lightning. 

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QUESTION: 14

Richter scale is used to measure earthquake. 

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QUESTION: 15

We should build heavy houses in a danger zone.

Solution:

Houses made up of Wood frame homes, properly resist earthquakes, ain't coming down in an earthquake up to about an 8.0. They can take a huge beating and still stand.

QUESTION: 16

Lightning strike destroys life and property.

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QUESTION: 17

Like charges attract each other.

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QUESTION: 18

The electric charges produced by rubbing are called static charges.

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QUESTION: 19

The outermost layer of earth is in one piece.

Solution:

Earth's outermost layer consisting of the crust and the upper mantle. Solid snd rigid. The crust of the Earth is broken into many pieces called lithospheric plates. The plates "float "  on the soft, semi rigid Asthenosphere. 
So, the given statement is false.

QUESTION: 20

In ancient times people did not know the true causes of earthquake.

Solution:

In ancient times earthquakes were thought to be caused by restless gods or giant creatures slumbering beneath the earth.Therefore, option (a)  In ancient times people did not know the true causes of earthquake is the correct✔ answer.

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