Tag: transfer of charge

Questions Related to transfer of charge

Earthquake and tsunamis are difficult to predict

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
Explanation:

Answer is A.

Earthquakes are caused by by shaking of the earth, strain building up in the tectonic plates, plates slipping along the fault lines, etc. and the Tsunamis can also be caused by volcanic eruptions, underwater detonations and even landslides.
Because we cant get deep enough into the Earth to see what happens before an earthquake or tsunami happens, therefore we cant predict when its coming.

A seismograph is a scale use for measuring the magnitudes of earthquakes

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

  3. Ambiguous

  4. Data insufficient

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Correct Option: B
Explanation:

Answer is B.

Seismograph is an instrument that makes a record of seismic waves caused by an earthquake, explosion, or other Earth-shaking phenomenon. Seismographs are equipped with electromagnetic sensors that translate ground motions into electrical changes, which are processed and recorded by the instruments analog or digital circuits. A record produced by a seismograph on a display screen or paper printout is called a seismogram.
Hence, it is not a scale and the statement is false.

The term used to describe a fracture along the earth's crust is

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

  1. aftershock

  2. fault

  3. focus

  4. tremor

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Correct Option: B
Explanation:

Answer is B.

The fracture along blocks of crust (tectonic plates) is called a fault or fault line.
A fault is a planar fracture or discontinuity in a volume of rock, across which there has been significant displacement along the fractures as a result of earth movement. Large faults within the Earth's crust result from the action of plate tectonic forces, with the largest forming the boundaries between the plates, such as subduction zones or transform faults. Energy release associated with rapid movement on active faults is the cause of most earthquakes.

Choose the correct statement.

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

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

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

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

  4. None of the above.

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Correct Option: C
Explanation:
The P waves and the S waves are the waves that travel throughout the planet. The P waves are the compression waves that apply force in the direction of propagation whereas the S waves are shear waves that 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.

How do we record 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. With the help of a seismogram.

  2. With the help of a seismograph.

  3. With the help of a seismocity.

  4. None of the above.

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Correct Option: B
Explanation:

Seismograph is a device which is used to record and measure seismic waves created by earthquakes.

A seismograph is 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. seismogram

  2. seismology

  3. seismometer

  4. seismocity

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Correct Option: C
Explanation:
A seismograph, which measures seismic waves, is also known as a seismometer.

'S' waves are

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

  1. Longitudinal

  2. Electromagnetic

  3. Ultrasonic

  4. Transverse

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Correct Option: D
Explanation:

The S waves moving through the planet make the medium to move perpendicular to the direction of the propagation of the wave. Therefore. the S waves are regarded as the transverse waves.

Waves produced due to earthquakes are 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. seismic waves

  2. shock waves

  3. infrasonic waves

  4. destructive waves

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Correct Option: A

Waves produced due to the earthquake are 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. seismic waves

  2. shock waves

  3. infrasonic waves

  4. Tectonic waves

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Correct Option: A

Fill in the blank:

Seismometers can record motions in ________ directions.

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

  1. one

  2. all

  3. opposite

  4. same

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Correct Option: B
Explanation:

Seismometer devices are located in $3$ directions and work on principle of inertia to catch the motions in all directions.