Power of Earthquake

Q.

What are seismic zones?

Q.

An earthquake measures 3 on Richter Scale:

(a) Would it be recorded by a seismograph?

(b) Is it likely to cause much damage?

Q.

For what purpose is Richter Scale used?

Q. The weak zones on the earth where earthquakes are more likely to occur are also known as_________.

1. crust zones
2. fault zones
3. richter zones
4. seismic zones

Q.

The boundaries of earths plate where earthquake tend to occur are called

Q.

An earthquake of magnitude 2 on Richter scale is:

(a) two times as strong as an earthquake of magnitude 1

(b) four times as strong as an earthquake of magnitude 1

(c) ten times as strong as an earthquake of magnitude 1

(d) hundred times as strong as an earthquake of magnitude 1

Q. Earthquake at two places were measured. The richter scale recorded the intensity as 2 and 4 respectively. If A and B are the magnitude of amplitudes at that places respectively, the amplitude can be compared as:

1. B = 100A
2. B = 1000A
3. B = 2A
4. B = 4A

Q.

Name the scale on which the magnitude (or intensity) of an earthquake is expressed.

Q.

The magnitude of an earthquake is measured on:

(a) Celsius scale (b) Kelvin scale (c) Decibel scale (d) Richter scale

Q. What are 2 possible reasons of an earthquake at the converging plate boundary ?

Q.

Richter scale is used to?

Q. Most destructive earthquakes have magnitudes _______ on the Richter scale.

1. $7$
2. $4$
3. less than $7$
4. higher than $7$

Q.

The weak zones on the earth where earthquakes are more likely to occur are also known as___.

1. Seismic zones

2. Fault zones

3. Unstable zone

4. Weak zone

Q. An earthquake of magnitude $7$ or more in Richter scale is considered to be___________.

1. Strong
2. Medium
3. Weak
4. None of the above

Q. Which scale is used to measure the magnitude of earthquake?

1. Parcal
2. Richter
3. Celsius
4. Kelvin

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

1. Temperature scale
2. Vector scale
3. Richter scale
4. Energy scale

Q.

Richter scale is used to:

1. Locate the epicentre of an earthquake

2. To measure the movement of the tectonic plates

3. To measure the magnitude of an earthquake

4. All of these

Q. An earthquake measuring 5 on the Richter scale is more powerful than another of magnitude 4 by
(a) 1.25 times
(b) 100 times
(c) 0.80 times
(d) 10 times

Q.

The news says that there was an earthquake of magnitude 7.5 on the Richter scale in Nepal, and there was an earthquake of magnitude 6 on the Richter scale in your hometown. Which of the following would be true?

1. The earthquake in Nepal is more severe

2. The earthquake in your hometown was more severe

3. Both are equally severe

4. None of the above

Q.

The news says that there was a 7.5 Richter scale in Nepal, you also recall an earthquake some years earlier in your hometown of 6 Richer scale. Which of the following would be true?

Q.

The intensity of an earthquake is expressed in terms of magnitude on a scale called:

1. Quake scale

2. Righter Scale

3. Earth Scale

4. Richter Scale

Q. Earthquake at two places A and B were measured by a seismograph which recorded the magnitude as 4 and 6. The magnitude of tremors and its destructive energy at A and B can be compared as under:

1. Tremor at B is 1000 times to that at place A
2. Tremor at B is 100 times to that at place A
3. Tremor at B is 2 times to that at place A
4. Tremor at B is 4 times to that at place A

Q.

Question 6
Name the scale on which the destructive energy of an earthquake is measured. An earthquake measures 3 on this scale. Would it be recorded by a seismograph? Is it likely to cause much damage?

Q. Consider the list of terms given below:
(i) Seismic zone
(ii) Fault zone
(iii) Mantle
(iv) Inner core
The boundaries of the earth’s plate are known as

1. (i) and (ii)
2. (iii) and (iv)
3. (i) and (iii)
4. (ii), (iii) and (iv)

Q. If the Richter scale reading for an earthquake is less than 3.5 then what can you say about the earthquake?

1. Generally not felt but recorded
2. Major earth quake causes serious damage
3. Often felt & rarely causes damage
4. Causes major damage to poorly constructed buildigs

Q. The weak zones on the earth where earthquakes are more likely to occur are also known as_________.

1. crust zones
2. fault zones
3. richter zones
4. seismic zones

Q.

Which of the following could be caused by an earthquake?

1. Floods

2. Landslides

3. Tsunamis

4. All of these