Some Natural Phenomena Test

Result

Some Natural Phenomena Test - 11

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

During earthquakes students should crouch under their desks

A
True

B
False

C
Ambiguous

D
Data insufficient

Solution

Answer is A.

Getting under a desk or standing in a doorway during an earthquake is a safe way to protect ourselves. This prevents the hanging wall clocks, photo-frames, water heaters etc., from falling on us in the event of an earthquake. We should take refuge next to a large sofa or chair when the earth starts moving.

Hence, the statement is true.
Question 2
1 / -0

The safest place during a thunderstorm is:

A
Under a tree

B
Near electricity poles

C
Inside a car

D
Lying on the ground

Solution

Answer is option C.

A fully-enclosed, all-metal vehicle is very safe, but we should make sure that we do not touch interior metallic areas of a vehicle. The lightning charge goes around the outside of the vehicle, creating a Faraday effect and protecting the occupants inside.
Question 3
1 / -0

How many seismograph stations are used to locate the epicentre of an earthquake?

A
$$4$$

B
$$2$$

C
$$3$$

D
$$9$$

Solution

Atleast $$3$$ seismograph stations are used to locate the epicentre of an earthquake. We find the distance from each seismograph station to the earthquake epicenter. The interception of the three circles is the epicenter (shown as a red dot in the figure.)
Question 4
1 / -0

Name the scale on which the destructive energy of an earthquake is measured.

A
Temperature scale

B
Vector scale

C
Richter scale

D
Energy scale

Solution

The Richter magnitude scale was developed in 1935 by Charles F. Richter of the California Institute of Technology as a mathematical device to compare the size of earthquakes.
A Richter scale is normally numbered 1-10, though there is no upper limit. Earthquakes measuring 1-2 on the scale happen regularly, and they are so small that people cannot feel them. Earthquakes measuring upwards of 7 are less frequent but very powerful and can cause a lot of destruction.
Option C is correct.
Question 5
1 / -0

The weather department has predicted that a thunderstorm is likely to occur on a certain day. Suppose you have to go out on that day. Should you carry an umbrella?

A
Yes

B
No

C
Ambiguous

D
Data insufficient

Solution

Carrying umbrella is not a good idea at all during thunderstorms.
As a lightning flash travels toward the ground from a nearby cloud, it looks for the tallest object. This is because all the objects attached to the ground acts as ground or earthed objects. So lightning takes the shortest path to travel and thus, falls on the tallest object. If you're holding an umbrella in an area surrounded by taller buildings, it's not so risky. But If you are the only tall object in the place surrounding you, the lightning flash will fall on you.
Thus, carrying umbrella is not a good idea at all during thunderstorms.
Question 6
1 / -0

Choose the correct statement.

A
'P' waves are slower than 'S' waves.

B
Both 'P' and 'S' waves have same speed.

C
'S' waves are slower than 'P' waves.

D
None of the above.

Solution

The P waves and the S waves are the waves that travel throughout the planet. The P waves apply force in the direction of propagation whereas the S waves make the medium particle move perpendicular to their direction of motion.

The energy is less easily transmitted in the medium in the case of S waves. So, P waves travel faster.

Option $$C$$ is correct.
Question 7
1 / -0

What are seismic waves caused by?

A
Aerial explosion

B
Traffic

C
Earthquakes

D
Heavy rain

Solution

Tremors on the earth can be caused when a volcano erupts, or a meteor hits the earth, or an underground nuclear explosion or an earthquake.
The tremors produce waves on the surface of the earth. These are called seismic waves.
Question 8
1 / -0

A Seismograph is a device that is used to measure the:

A
thunderstorm frequency

B
earthquake magnitude

C
lightning frequency

D
lightning intensity

Solution

A seismograph is a device that measures and records the seismic waves moving through the earth post an earthquake.
Question 9
1 / -0

A seismograph is also known as:

A
Seismogram

B
Seismology

C
Seismometer

D
Seismocity

Solution

A seismograph, which measures seismic waves, is also known as a seismometer.
A seismometer is an instrument that responds to ground noises and shaking such as caused by earthquakes, volcanic eruptions, and explosions. They are usually combined with a timing device and a recording device to form a seismograph.
Question 10
1 / -0

How do we record seismic waves?

A
With the help of an oscilloscope.

B
With the help of a seismograph.

C
With the help of an anemometer.

D
None of the above.

Solution

A seismograph is a device that is used to record and measure the magnitude of seismic waves created by earthquakes.

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Some Natural Phenomena Test - 11

Result

Some Natural Phenomena Test - 11

Score

-

Rank

-

SHARING IS CARING

Question 1

True

False

Ambiguous

Data insufficient

Solution

Question 2

Under a tree

Near electricity poles

Inside a car

Lying on the ground

Solution

Question 3

$$4$$

$$2$$

$$3$$

$$9$$

Solution

Question 4

Temperature scale

Vector scale

Richter scale

Energy scale

Solution

Question 5

Yes

No

Ambiguous

Data insufficient

Solution

Question 6

'P' waves are slower than 'S' waves.

Both 'P' and 'S' waves have same speed.

'S' waves are slower than 'P' waves.

None of the above.

Solution

Question 7

Aerial explosion

Traffic

Earthquakes

Heavy rain

Solution

Question 8

thunderstorm frequency

earthquake magnitude

lightning frequency

lightning intensity

Solution

Question 9

Seismogram

Seismology

Seismometer

Seismocity

Solution

Question 10

With the help of an oscilloscope.

With the help of a seismograph.

With the help of an anemometer.

None of the above.

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.