Tag: structure of earth

Quizzes (7) Questions (80)

Questions Related to structure of earth

Multiple choice physics structure of earth seismic waves and tsunami causes of earthquakes origin of earth and its internal energy transfer of charge lightning safety

Fill in the blank:

Most destructive earthquakes have magnitudes _______ on the Richter scale.

  1. $4$

  2. $7$

  3. less than $7$

  4. higher than $7$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

An earthquake of magnitude 7 is found to be destructive. And, obviously, most destructive earthquakes are of magnitude higher than 7 on the Richter scale.

Multiple choice physics structure of earth seismic waves and tsunami causes of earthquakes origin of earth and its internal energy transfer of charge lightning safety

Fill in the blanks:

The most tremor-threatened areas in India are Kashmir, _______ and ________.

  1. Western, Eastern Himalayas

  2. Northern, Western Himalayas

  3. Eastern, Central Himalayas

  4. Western, Central Himalayas
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In India, Kashmir, Western and Central Himalayas are some places which fall along or near to the fault zone. So, earthquakes are most likely to occur in those places.

Multiple choice physics structure of earth seismic waves and tsunami causes of earthquakes origin of earth and its internal energy transfer of charge lightning safety

Seismograph is a instrument used to:

  1. Record lightning

  2. Record strength of wind

  3. Record temperature

  4. Record vibrations of earthquakes
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The tremors produces waves on the surface of the earth. These are called seismic waves. The waves are recorded by an instrument called seismograph.

Multiple choice physics structure of earth seismic waves and tsunami causes of earthquakes origin of earth and its internal energy transfer of charge lightning safety

An earthquake of magnitude $7$ or more in Richter scale is a _____ one?

  1. Stronger

  2. Weaker

  3. Medium

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Richter scale is logarithmic. An earthquake of magnitude 7 or higher is considered a major or strong earthquake capable of causing significant damage.