Class 8 Science Chapter 12 MCQ (Multiple Choice Questions) of Some Natural Phenomena for CBSE and state board students updated for academic session 2024-25. All the questions are important not only for unit test taken in class but the terminal exams also. Practice here with these MCQ objective questions to clear your doubts related to chapter 12 and be confident in exams and debates. All the important questions are covered here using MCQs objective test.

Class 8 Science Chapter 12 MCQ

Class: 8Science
Chapter: 12Some Natural Phenomena
Contents:MCQ with answers and Explanation
Session:2024-25

MCQ Tests with Answers for Class 8 Science Chapter 12

Q1

Which of the following statement is or are correct?

[A]. Cyclones are a destructive natural phenomenon which can cause a lot of damage of human life and property.
[B]. Lightning is an electric spark on a huge scale which is caused by the accumulation of electric charges in the clouds.
[C]. When we rub the plastic comb with our dry hair, plastic comb gets electric charge due to friction.
[D]. All the above
Q2

Consider the following statements and choose the incorrect one:

[A]. [A] If we rub one end of a pen made of plastic with a sheet of paper, it attracts the tiny pieces of paper.
[B]. If we take an inflated rubber balloon, rub it carefully with a piece of woolen cloth and then touch it with a wall, the balloon stick to the wall.
[C]. The glass rod is first rubbed with a piece of silk cloth and then brought near the tiny pieces of paper the glass rod attracts the tiny pieces of paper.
[D]. None of the above
Q3

Which of the following cannot be charged by friction, if held by hand?

[A]. A plastic scale
[B]. A copper rod
[C]. An inflated balloon
[D]. A woolen cloth
Q4

Electric current is to be passed from one body to another. For this purpose, the two bodies must be joined by:

[A]. Cotton thread
[B]. Plastic string
[C]. Copper wire
[D]. Rubber band
Q5

Paheli is writing some statements, choose the incorrect statement and help her:

[A]. The electric charges generated by rubbing of friction are static electric charges.
[B]. When a ball point pen refill is rubbed vigorously with a piece of polythene, the refill acquires electric charge by friction.
[C]. All the insulators object like glass rod, plastic comb, plastic scale, plastic straw etc. can be charged by rubbing while held in hand.
[D]. None of the above
Q6

The movement of the earth’s plate causes:

[A]. Cyclones
[B]. Lightning
[C]. Earthquakes
[D]. Thunderstorms
Q7

Which of the following are transferred from one object to another object when these two objects are charged by friction?

[A]. Atoms
[B]. Protons
[C]. Neutrons
[D]. Electrons
Q8

The electric nature of lightning was established by a scientist named:

[A]. Isaac Newton
[B]. Robert Hooke
[C]. Benjamin Franklin
[D]. Thales
Q9

When two objects are rubbed together, then both the objects get opposite charged. Choose the wrong statements:

[A]. The glass rod acquires a positive electric charge where is the silk cloth gets a negative electric charge.
[B]. The ballpoint pen refill acquires a positive charge whereas polythene gets a negative charge.
[C]. Plastic comb gets negative charge whereas the hair gets positive charge.
[D]. None of the above
Q10

Which of the following is not likely to cause “Tsunami”?

[A]. [A] A major nuclear explosion under the sea
[B]. Earthquake
[C]. Volcanic eruption
[D]. Lightning
Q11

The magnitude of an earthquake is measured on:

[A]. Celsius scale
[B]. Kelvin scale
[C]. Decibel scale
[D]. Richter scale
Q12

The boundaries of the earth plate are known as:

[A]. Seismic zone and Fault zone
[B]. Seismic zone and Mantle
[C]. Mantle zone and Inner core
[D]. Fault zone, Mantle and Inner core
Q13

Puja is writing some statements but she confused to know whether the statements are correct or not? If you know the answer to this question, then tell her:

[A]. The object which loses negatively charged electrons during rubbing, acquires a positive electric charge.
[B]. The object which gains negatively charged electrons during the rubbing, acquires a negative electric charge.
[C]. The positively charged protons are held strongly inside the nucleus of atom.
[D]. None of the above
Q14

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
Q15

The epicenter of an earthquake is:

[A]. Deep under the crust of earth
[B]. In the mantle of earth
[C]. On the surface of earth
[D]. In the core of earth
Q16

Major earthquakes are less likely to occur in:

[A]. North East India
[B]. Rajasthan
[C]. Rann of Kutch
[D]. Orissa
Q17

When an object gets negatively charged by the process of friction then:

[A]. The object loses some electrons
[B]. The object loses some protons
[C]. The object gains some electrons
[D]. The object gains some protons
Q18

When a plastic comb is rubbed with dry hair, the hair gets positively charged by friction. In this process:

[A]. The hair loses some positive protons
[B]. The hair gains some positive protons
[C]. The hair loses some negative electrons
[D]. The hair gains some negative electrons
Q19

Read the following sentences carefully, and choose the incorrect one:

[A]. If one object has positive charge and the other object has negative charge, then the two objects attract each other.
[B]. If the two objects have positive charge, they repel each other.
[C]. If the two objects have a negative charge, they repel each other.
[D]. Since, a charged balloon and a charged ball pen refill having unlike charges, they repel each other.
Q20

The tremendous electric charges in the atmosphere which produce sheet lightning in the clouds are produced by the process of:

[A]. Friction
[B]. Induction
[C]. Conduction
[D]. Convection
Q21

The place inside the earth’s crust where the earthquake is generated is called:

[A]. Seismic zone of the earth
[B]. Epicentre of the earthquake
[C]. Fault zone of the earth
[D]. Focus of the earthquake
Q22

An inflated rubber balloon is rubbed with a woolen cloth whereas a ballpoint pen refill is rubbed with a polythene bag. Which of these will get positively charged?

[A]. Inflated rubber ballon and woolen cloth
[B]. Woolen cloth and ball point pen refill
[C]. Inflated rubber ballon and polythene bag
[D]. Woolen cloth and polythene bag
Q23

Which of the following statement is or are incorrect?

[A]. The process of transferring an electric charge from a charged object to the earth is called earthing.
[B]. The bright flash of light which we see in the clouds is called lightning.
[C]. The passage of electric current in air due to movement of electric charges is called electric discharge.
[D]. None of the above
Q24

Consider the following statements and choose the correct one:

[A]. Lightning strikes are more frequent in hilly areas because in such area’s clouds are comparatively closer to the ground than in the planes.
[B]. When lighting strikes the earth, it can cause a lot of destruction by damaging property and killing people.
[C]. Lightning conductor is a device used to protect a building from the effects of lightning.
[D]. All the above
Q25

Consider the following statements and choose the correct one:

[A]. Seismograph is an instrument which measures and records the magnitude of an earthquake in terms of the shock waves it produces.
[B]. The place inside the earth’s crust where the earthquake is generated, is called “focus” of the earthquake.
[C]. The point on earth’s surface directly above the focus is called “epicenter”.
[D]. All the above

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Last Edited: June 12, 2023