Class 8 Science Chapter 15 MCQ

Class 8 Science Chapter 15 MCQ (Multiple Choice Questions) of Some Natural Phenomena for CBSE and state board students updated for academic session 2021-2022. 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 15 and be confident in exams and debates. All the important questions are covered here using MCQs objective test.

Class 8 Science Chapter 15 MCQ for 2021-2022

Class: 8Science
Chapter: 15Some Natural Phenomena
Contents:MCQ with answers and Explanation

MCQ Tests with Answers for Class 8 Science Chapter 15

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

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

[A]. The process of giving electric charge to an object is called charging the object.
[B]. An object having no electric charge on it, is called an uncharged object.
[C]. The charging of an object by rubbing it with another object is called charging by friction.
[D]. All the above
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

When a glass rod is rubbed with a piece of silk cloth then:

[A]. The glass rod and silk cloth both acquire positive charge.
[B]. The glass rod becomes positively charged while the silk cloth has a negative charge.
[C]. The glass rod and silk cloth both acquire negative charge.
[D]. The glass rod becomes negatively charged while the silk cloth has a positive charge.




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

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
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

The magnitude of an earthquake is measured on:

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

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.
Q13

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
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

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.
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

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

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

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
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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