Some Natural Phenomena Mock Tests

23 questions available

Some Natural Phenomena Mock Test 1

Questions: 23

Sample Questions

Class 8 Science

Which of the following is used as a moderator in a nuclear reactor?

A Heavy water

B Graphite

C Both heavy water and graphite

D Boron

Class 8 Science

Lightning is an example of which type of phenomenon?

A Electric discharge

B Magnetic induction

C Nuclear fission

D Chemical reaction

Class 8 Science

Which part of the brain controls posture and balance of the body?

A Cerebrum

B Cerebellum

C Medulla

D Pons

Class 8 Science

The number of lunar eclipses that can occur in a year is at most:

A Zero

B Two

C Five

D Twelve

Class 8 Science

An earthquake of magnitude 8.3 on the Richter scale is:

A Mild

B Moderate

C Great

D Catastrophic

Class 8 Science

The magnitude of an earthquake is reported using which scale?

A Mercalli scale

B Richter scale

C Seismic scale

D Decibel scale

Class 8 Science

A lightning conductor installed on a building protects it from damage by lightning because it:

A Absorbs the lightning and stores it

B Provides a low-resistance path to the ground

C Prevents cloud charges from building up

D Repels the lightning away from the building

Class 8 Science

The intensity of an earthquake is measured on which scale?

A Richter scale

B Sefford scale

C Beaufort scale

D Celsius scale

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