Some Natural Phenomena Test

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Some Natural Phenomena Test - 19

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Weekly Quiz Competition

Question 1
1 / -0

Fill in the blank:

A weak earthquake has a magnitude _________ on a Richter scale.

A
between 4 and 7

B
between 2 and 4

C
equal to 7

D
more than 7
Question 2
1 / -0

Is lightning static electricity?

A
Yes

B
No

C
Sometimes

D
None of the above

Solution

Lightning is caused by a buildup of static electricity inside a storm cloud. Moving around inside the cloud are tiny water molecules . These molecules are colliding and bumping into each other—creating a static electric charge.Which results in lightning .
Question 3
1 / -0

An earthquake of magnitude $$7$$ or more in Richter scale is considered to be___________.

A
Strong

B
Weak

C
Medium

D
None of the above

Solution

Richter scaler is not linear, an increase of $$2$$ in magnitude means $$100$$ times more destructive energy. Therefore, an earthquake of magnitude more than $$7$$ is most destructive.
Question 4
1 / -0

Which of the following cannot be charged by rubbing or friction?

A
A plastic scale

B
A copper rod

C
An inflated balloon

D
A woollen cloth

Solution

Copper is a good conductor. So, charges flow very easily through the surface of copper. If a copper is rubbed with some material, the charge generated, instead of staying on the copper rod surface, flows throw it and reaches the Earth by conducting through our body. So, a copper rod can not be charged by rubbing or friction.
Question 5
1 / -0

Which scale is used to measure the magnitude of earthquake?

A
Kelvin

B
Parcal

C
Celsius

D
Richter

Solution

Richter scale is used to measure the magnitude of the earthquake.
Question 6
1 / -0

Oppositely charged clouds, coming closer to each other, cause:

A
induction

B
conduction

C
lightning

D
none of the above

Solution

Lightning is sudden electrostatic discharge between an electric charged region of a cloud or between two clouds.When oppositely charged clouds comes near to each other,charge gets accumulated in large numbers and air present no longer resists their flow.Negative and positive charges meets producing streaks of bright light called lightning.
Question 7
1 / -0

Seismograph is a instrument used to:

A
Record lightning

B
Record strength of wind

C
Record temperature

D
Record vibrations of earthquakes

Solution

The tremors produce waves on the surface of the earth. These are called seismic waves. The waves are recorded by an instrument called a seismograph.
Question 8
1 / -0

How is lightning conductor installed during construction of building?

A
By keeping one end of the rod open to the air and another end of the rod buried deep in the ground.

B
By keeping one end of the rod closed and the other end is buried deep in the ground.

C
By keeping one end of the rod open to the air and the other end just touching the ground.

D
None of the above

Solution

During the construction of a building, a lightning conductor is installed. One end of the conductor is taller than the walls of the building making taller target for lightning and the other end of conductor is buried deep in the ground so that charges gets discharged to the earth without any damage to building.
Question 9
1 / -0

Storms, cyclones, earthquake, lightning etc. are ................ natural phenomena:

A
constructive

B
destructive

C
simple

D
complex

Solution

Storms, cyclones, earthquakes and lightning are termed as natural calamities. These causes lot of damages to the properties and enviroments. Hence, they are destructive in nature.
Question 10
1 / -0

Franklin showed that _______ and the spark from our clothes during winters are the same phenomena.

A
Thunder-storm

B
Earthquake

C
Lightning

D
Rain

Solution

Lightning is caused by the accumulation of charges in the clouds. In $$1752$$ Benjamin Franklin, an American scientist, showed that lightning and the spark from your clothes are essentially the same phenomena.

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Some Natural Phenomena Test - 19

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Some Natural Phenomena Test - 19

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SHARING IS CARING

Question 1

between 4 and 7

between 2 and 4

equal to 7

more than 7

Question 2

Yes

No

Sometimes

None of the above

Solution

Question 3

Strong

Weak

Medium

None of the above

Solution

Question 4

A plastic scale

A copper rod

An inflated balloon

A woollen cloth

Solution

Question 5

Kelvin

Parcal

Celsius

Richter

Solution

Question 6

induction

conduction

lightning

none of the above

Solution

Question 7

Record lightning

Record strength of wind

Record temperature

Record vibrations of earthquakes

Solution

Question 8

By keeping one end of the rod open to the air and another end of the rod buried deep in the ground.

By keeping one end of the rod closed and the other end is buried deep in the ground.

By keeping one end of the rod open to the air and the other end just touching the ground.

None of the above

Solution

Question 9

constructive

destructive

simple

complex

Solution

Question 10

Thunder-storm

Earthquake

Lightning

Rain

Solution

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