Tag: lightning safety

Questions Related to lightning safety

Fill in the blanks:

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

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

  1. Western, Eastern Himalayas

  2. Northern, Western Himalayas

  3. Eastern, Central Himalayas

  4. Western, Central Himalayas

Show answer
Correct Option: D
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.

The boundaries of the plates, called weak zones, are also known as:

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

  1. danger zones

  2. seismic zones

  3. colliding zones

  4. none of the above

Show answer
Correct Option: B
Explanation:

The weak zones are also known as seismic zones. These are zones where earthquake are most likely to occur.

Which scale is used to measure the magnitude of earthquake?

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

  1. Kelvin

  2. Parcal

  3. Celsius

  4. Richter

Show answer
Correct Option: D
Explanation:

Richter scale defines magnitude of the earthquake. Richter scale is not linear.

Fill in the blank:

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

physics structure of earth seismic waves and tsunami causes of earthquakes origin of earth and its internal energy

  1. between 4 and 7

  2. between 2 and 4

  3. equal to 7

  4. more than 7

Show answer
Correct Option: B
Explanation:

An earthquake of magnitude between 2 and 4, on Richter scale, is considered as weak, having less vibrational energy.

Seismograph is a instrument used to:

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

  1. Record lightning

  2. Record strength of wind

  3. Record temperature

  4. Record vibrations of earthquakes

Show answer
Correct Option: D
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.

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

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

  1. Stronger

  2. Weaker

  3. Medium

  4. None of the above

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Correct Option: A

Magnitude of earthquake is measured by

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

  1. electroscope

  2. Richter scale

  3. seismograph

  4. coulomb

Show answer
Correct Option: B
Explanation:

Magnitude of earthquake is measured by Richter scale. A electroscope is an early scientific instrument that is used to detect the presence and magnitude of electric charge on a body.  A seismograph is used to record of seismic waves caused by an earthquake, explosion, or other Earth-shaking phenomenon. Coulomb is the unit of electrical charge. 

State whether true or false:
Seismic waves recorded by an instrument is called seismograph.

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

  1. True

  2. False

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Correct Option: A

What types of waves are seismic waves?

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

  1. Non-mechanical waves

  2. Elastic waves

  3. Mechanical waves

  4. Electromagnetic waves

Show answer
Correct Option: C

The movement of Earth's plates causes

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

  1. Lightening

  2. Cyclons

  3. Earthquake

  4. Thunderstorms

Show answer
Correct Option: C
Explanation:

The movement of Earth's plates causes Earthquake. Earth's crust is broken up into large pieces called tectonic plates. Tectonic plates are giant pieces of the Earth's crust that fit together and move around on the Earth's surface. Tectonic plates are constantly moving slowly, but sometimes friction between them causes them to lock together and become unable to move. The rest of the plates carry on moving, which leads to increased pressure on the locked section. Eventually, the locked section succumbs to the pressure, and the plates move past each other rapidly. This movement causes a tectonic earthquake. The waves of released energy move through the Earth's crust and cause the shaking we feel at an earthquake site.