Some Natural Phenomena Test

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Some Natural Phenomena Test - 23

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Weekly Quiz Competition

Question 1
1 / -0

Object may acquire an excess or deficiency of charge by

A
Electric force

B
Heating

C
Shaking

D
By rubbing

Solution

An object can be charged by rubbing. During rubbing some of the free electrons may get transferred from one object to another.
Question 2
1 / -0

Earthquake waves are of which type?

A
Infrasonic

B
Ultrasonic

C
Supersonic

D
Intrasonic

Solution

Infrasonic
Earthquake waves have frequencies less than $$20 \ Hz$$, thus they are infrasonic waves.
Question 3
1 / -0

Earthquake is also known as :

A
nektons

B
blusters

C
temblors

D
flickers

Solution

An earthquake also known as a temblor, quake, tremor is the shaking of the surface of the Earth resulting from a sudden release of energy in the Earth's crust that creates seismic waves.
Question 4
1 / -0

Seismic waves that vibrate perpendicular to the direction of their path.

A
Spread on the surface of the earth

B
Travel through the solid as well as other parts of the earth

C
Travel through the solid parts of the earth only

D
None of the above

Solution

Seismic waves that vibrate perpendicular to the direction of motion travel through the solid parts of earth only.
Question 5
1 / -0

Consider the list of terms given below:
(i) Seismic Zone
(ii) Fault Zone
(iii) Mantle
(iv) Inner Core
The boundaries of the Earth's plates are known as:

A
(i) and (ii)

B
(i) and (iii)

C
(iii) and (iv)

D
(ii), (iii) and (iv)

Solution

Seismic zone is the earthquake prone area, where the boundaries of Earth plates are situated. Seismic zones are located along the fault zones.
Within the Earth's crust, fault zone is the boundaries between the plates, such as subduction zones or transform faults.
The mantle is a layer between the crust and the outer core.
The inner core is the very center of the Earth.
Question 6
1 / -0

Major earthquakes are less likely to occur in

A
North East India

B
Rajasthan

C
Rann of Kutch

D
Orissa

Solution

North East India, Rajashthan and Rann of Kutch are within moderate to high intensity earthquake zones of India. Orissa, on the other hand, belongs to low intensity earthquake zone of India.
Question 7
1 / -0

The natural calamity that cannot be predicted accurately in advance:

A
Flood

B
Cyclone

C
Earthquake

D
Famine

Solution

Most earthquakes are caused by the movement of the earth’s plates. While we can determine earthquake-prone areas by studying the movement of the tectonic plates, we still cannot accurately predict when an earthquake might occur.
Question 8
1 / -0

The streaks of bright light seen during lightning is essentially the path followed by:

A
UV rays from sun

B
Gamma rays

C
Accumulated electric charges

D
None of the above

Solution

Lightning occurs due to electrostatic discharge between the atmosphere and the ground. So the streaks of bright light seen during lightning are essentially the path followed by accumulated electric charges.
Question 9
1 / -0

A polyethylene strip rubbed against a woollen cloth can attract small pieces of paper. Which of the following changes takes place on small pieces of paper during the application of the force ?

A
The shape of the object.

B
The position of the object.

C
The density of the object.

D
The mass of the object.
Question 10
1 / -0

A lightning conductor installed in a building :

A
Does not allow the lightning to fall on the building

B
Repels the lightning

C
Forces the lightning to fall in an area where there are no buildings

D
Conducts electric charge to the ground when lightning strikes the building

Solution

Lightning conductors are installed in buildings to provide a path for electric discharge during lightning strike and let them to reach the ground and protect the building from lightning strike.

Answer-(D)

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Some Natural Phenomena Test - 23

Result

Some Natural Phenomena Test - 23

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SHARING IS CARING

Question 1

Electric force

Heating

Shaking

By rubbing

Solution

Question 2

Infrasonic

Ultrasonic

Supersonic

Intrasonic

Solution

Question 3

nektons

blusters

temblors

flickers

Solution

Question 4

Spread on the surface of the earth

Travel through the solid as well as other parts of the earth

Travel through the solid parts of the earth only

None of the above

Solution

Question 5

(i) and (ii)

(i) and (iii)

(iii) and (iv)

(ii), (iii) and (iv)

Solution

Question 6

North East India

Rajasthan

Rann of Kutch

Orissa

Solution

Question 7

Flood

Cyclone

Earthquake

Famine

Solution

Question 8

UV rays from sun

Gamma rays

Accumulated electric charges

None of the above

Solution

Question 9

The shape of the object.

The position of the object.

The density of the object.

The mass of the object.

Question 10

Does not allow the lightning to fall on the building

Repels the lightning

Forces the lightning to fall in an area where there are no buildings

Conducts electric charge to the ground when lightning strikes the building

Solution

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