Updated on June 12, 2023
by Tiwari Academy
by Tiwari Academy
Class 8 Science Chapter 12 MCQ (Multiple Choice Questions) of Some Natural Phenomena for CBSE and state board students updated for academic session 2025-26. 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: 8 | Science |
| Chapter: 12 | Some Natural Phenomena |
| Contents: | MCQ with answers and Explanation |
| Session: | 2025-26 |
MCQ Tests with Answers for Class 8 Science Chapter 12
Q1
An electroscope is a device which is used to find if an object is:
[A]. Charged
[B]. Magnetic
[C]. Free of cracks
[D]. Hot
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
The electric nature of lightning was established by a scientist named:
[A]. Isaac Newton
[B]. Robert Hooke
[C]. Benjamin Franklin
[D]. Thales
Q8
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
Q9
A plastic comb is rubbed with dry hair whereas a glass rod is rubbed with a piece of silk cloth. Which of these will get negatively charged?
[A]. Plastic comb and Glass rod
[B]. Glass rod and Dry hair
[C]. Plastic comb and Silk cloth
[D]. Glass rod and Silk cloth
Q10
The earth’s plate responsible for causing earthquake is:
[A]. The crust of the earth
[B]. The mantle of the earth
[C]. The inner core of the earth
[D]. The outer core of the earth
Q11
Payal is completed her science chapter where she wrote some statements. She wants to know whether the statements are correct or not? Payel wants to take help from you:
[A]. All the objects made of clear plastic as ballpen refill, plastic scale etc., called acrylic, gets positive charge on rubbing.
[B]. All the objects made of polythene plastic or polythene sheet or polythene plastic comb gets negative charge on rubbing.
[C]. The object will get positive or negative charge; it depends on the nature of material of which the two objects are made.
[D]. None of the above
Q12
The magnitude of an earthquake is measured on:
[A]. Celsius scale
[B]. Kelvin scale
[C]. Decibel scale
[D]. Richter scale
Q13
Badal appeared in class test but he confused to know the incorrect statement. Would you help him to know that?
[A]. All the objects like glass rod, silk cloth, rubber balloon, ballpoint pen etc., are made up of tiny particles called atoms.
[B]. We know that positive electric charges called protons and negative electric charge is called electrons.
[C]. The number of protons and electrons in the atoms are equal.
[D]. None of the above.
Q14
The outermost layer of the earth is called:
[A]. Mantle
[B]. Outer core
[C]. Crust
[D]. Inner core
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
In a science quiz competition, Payel is asked a question where she had to choose the statement which was/were incorrect?
[A]. Earthquakes occur anytime all over the world.
[B]. The plates of the outermost layer of the earth are always in continuous motion.
[C]. Tremors on the earth can also be caused by the eruption of a volcano.
[D]. The process of electric discharge cannot occur between clouds and the earth.
Q19
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
Q20
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.
Q21
Read the following sentences carefully, and choose the incorrect one:
[A]. The magnitude of an earthquake is expressed on the Richter scale.
[B]. The weak zones of earth’s crust are called “seismic zones”.
[C]. The earthquake having magnitude higher than 7 on the Richter scale, are really destructive earthquake.
[D]. None of the above
Q22
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
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]. 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
Q25
In a quiz competition, you are asked a question where you have to choose the statement which is/ are incorrect?
[A]. The innermost part of the earth is called its “Core”.
[B]. The central region of earth is called “Mental”.
[C]. The outermost layer of the earth is called “Crust”.
[D]. The crust of earth is totally one piece of plate.
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Last Edited: June 12, 2023
