 Class 8 Science Chapter 15 MCQ (Multiple Choice Questions) of Some Natural Phenomena for CBSE and state board students updated for academic session 2023-2024. 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 2023-2024

 Class: 8 Science Chapter: 15 Some 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

#### 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

#### 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
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

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

#### 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
Q10

#### 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
Q11

#### The magnitude of an earthquake is measured on:

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

#### 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
Q13

#### 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
Q14

[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

#### 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

#### In a science quiz competition, Payel is asked a question where she had to choose the statement which was/were correct?

[A]. We should avoid raising an umbrella over our head during lightning.
[B]. Earthquake is a destructive natural phenomenon which cannot be predicted in advance.
[C]. Tremors on the earth can also be caused when a volcano erupt or a big meteorite hits the earth or nuclear explosion (by human being).
[D]. All the above
Q20

[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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Last Edited: January 27, 2022