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NCERT Solutions for Class 8 Science Chapter 15 Some Natural Phenomena

by aglasem
August 24, 2021
in 8th Class
Reading Time: 1 min read
0
NCERT Solutions

NCERT Solutions Class 8 Science Chapter 15 Some Natural Phenomena  – Here are all the NCERT solutions for Class 8 Science Chapter 15. This solution contains questions, answers, images, explanations of the complete chapter 15 titled Some Natural Phenomena From of Science taught in class 8. If you are a student of class 8 who is using NCERT Textbook to study Science, then you must come across chapter 15 Some Natural Phenomena . After you have studied lesson, you must be looking for answers of its questions. Here you can get complete NCERT Solutions for Class 8 Science Chapter 15 Some Natural Phenomena in one place.

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NCERT Solutions Class 8 Science Chapter 15 Some Natural phenomena

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Here on AglaSem Schools, you can access to NCERT Book Solutions in free pdf for Science for Class 8 so that you can refer them as and when required. The NCERT Solutions to the questions after every unit of NCERT textbooks aimed at helping students solving difficult questions.

For a better understanding of this chapter, you should also see summary of Chapter 15 Some Natural phenomena , Science, Class 8.

Class 8
Subject Science
Book Science
Chapter Number 15
Chapter Name

Some Natural phenomena

NCERT Solutions Class 8 Science chapter 15 Some Natural phenomena

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Class 8, Science chapter 15, Some Natural phenomena solutions are given below in PDF format. You can view them online or download PDF file for future use.

Some Natural phenomena Download

NCERT Solutions for Class 8 Science Chapter 15 Some Natural Phenomena Download

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Download NCERT Solutions Class 8 Science chapter 15 Some Natural phenomena In PDF Format

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Click Here to download NCERT Solutions for Class 8 Science chapter 15 Some Natural phenomena

Question & Answer

Q.1: Which of the following cannot be charged easily by friction?
(a) A plastic scale
(b) A copper rod
(c) An inflated balloon
(d) A woollen cloth.

Ans : (b) A copper rod. Only non-conducting materials can be easily charged by friction. Copper is a highly conducting materials. Therefore, a copper rod cannot be charged easily by friction.

Q.2: When a glass rod is rubbed with a piece of silk cloth the rod.
(a) and the cloth both acquire positive charge.
(b) becomes positively charged while the cloth has a negative charge.
(c) and the cloth both acquire negative charge.
(d) becomes negatively charged while the cloth has a positive charge.

Ans : (b) The rod becomes positively charged, while the cloth has a negative charge. When an object is charged by rubbing it against another object, the two objects get oppositely charged. By convention, it is considered that the charged acquired by the glass rod is positive and charged acquired by the cloth is negative. Therefore, the rod becomes positively charged and the cloth becomes negatively charged.

Q.3: Write T against true and F against false in the following statements. 
(a) Like charges attract each other (T/F) 
(b) A charged glass rod attract a charged plastic straw (T/F) 
(c) Lightning conductor cannot protect a building from lightning (T/F) 
(d) Earthquakes can be predicted in advance (T/F)

Ans : (a) False Like charges repel each other. It is the unlike charges that attract each other. (b) True A charged glass rod has positive charges on its surface while a charged plastic straw has negative charges on its surface. Since unlike charges attract each other, a charged glass rod attracts a charged plastic straw. (c) False During a lightning, the lightning conductor conducts all the atmospheric charges to the Earth directly, leaving the building safe. Hence, lightning conductors protect a building from lightning. (d) False Although the causes of earthquakes is known, but no instrument could be invented to detect it till now. Hence, earthquakes cannot be predicted in advance.

Q.4: Sometimes, a crackling sound is heard while taking off a sweater during winters. Explain?

Ans : When a sweater is taken off, the woollen sweater gets charged because of the friction between the sweater and the body. Hence, one can hear a crackling sound during the given process.

Q.5: Explain why a charged body loses its charge if we touch it with our hand.

Ans : When we touch a charged object, our body conducts its charges to the earth. That is why a charged body loses its charge, if we touch it with our hand. This phenomenon is known as electric discharge.

NCERT / CBSE Book for Class 8 Science

You can download the NCERT Book for Class 8 Science in PDF format for free. Otherwise you can also buy it easily online.

  • Click here for NCERT Book for Class 8 Science
  • Click here to buy NCERT Book for Class 8 Science

All NCERT Solutions Class 8

  • NCERT Solutions for Class 8 English
  • NCERT Solutions for Class 8 Hindi
  • NCERT Solutions for Class 8 Maths
  • NCERT Solutions for Class 8 Science
  • NCERT Solutions for Class 8 Social Science
  • NCERT Solutions for Class 8 Sanskrit

All NCERT Solutions

You can also check out NCERT Solutions of other classes here. Click on the class number below to go to relevant NCERT Solutions of Class 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12.

Class 1 Class 2 Class 3
Class 4 Class 5 Class 6
Class 7 Class 8 Class 9
Class 10 Class 11 Class 12

Download the NCERT Solutions app for quick access to NCERT Solutions Class 8 Science Chapter 15 Some Natural phenomena. It will help you stay updated with relevant study material to help you top your class!


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