UPSC Exam  >  UPSC Notes  >  Science & Technology for UPSC CSE  >  NCERT Textbook: Fun with Magnets

NCERT book Class 6 Science - Fun with Magnets

Download, print and study this document offline
114 videos|430 docs|209 tests

Up next

FAQs on NCERT book Class 6 Science - Fun with Magnets

1. What are magnets and how do they work?
2. What are the different types of magnets?
Ans. There are three main types of magnets: permanent magnets, temporary magnets, and electromagnets. Permanent magnets are made of materials like iron, nickel, and cobalt, and they retain their magnetism even without an external magnetic field. Temporary magnets, on the other hand, only exhibit magnetism when they are in the presence of a magnetic field. Electromagnets are created by passing an electric current through a coil of wire, and their magnetism can be controlled by varying the current.
3. How can I test if an object is magnetic?
Ans. To test if an object is magnetic, you can use a magnet and see if the object is attracted to it. If the object is attracted to the magnet, it is likely magnetic. You can also try to induce magnetism in the object by rubbing it against a magnet several times in the same direction. If the object becomes magnetized and can attract small metallic objects, it is magnetic.
4. Can magnets lose their magnetism?
Ans. Yes, magnets can lose their magnetism over time. This can happen due to various factors such as exposure to high temperatures, strong magnetic fields in the opposite direction, or physical damage. Permanent magnets are more resistant to losing their magnetism compared to temporary magnets. However, even permanent magnets can gradually lose their magnetism over an extended period.
5. How are magnets used in everyday life?
Ans. Magnets have numerous applications in everyday life. They are used in various electrical devices such as speakers, headphones, and electric motors. Magnets are also used in medical imaging machines like MRI scanners, where they help generate a magnetic field to produce detailed images of the body. Additionally, magnets are used in industries for separating magnetic materials, in magnetic door catches, and even in simple household items like refrigerator magnets.
114 videos|430 docs|209 tests
Download as PDF

Up next

Explore Courses for UPSC exam
Related Searches

Viva Questions

,

NCERT book Class 6 Science - Fun with Magnets

,

past year papers

,

Free

,

Objective type Questions

,

Important questions

,

Semester Notes

,

mock tests for examination

,

MCQs

,

Exam

,

Summary

,

study material

,

Sample Paper

,

NCERT book Class 6 Science - Fun with Magnets

,

Previous Year Questions with Solutions

,

NCERT book Class 6 Science - Fun with Magnets

,

Extra Questions

,

video lectures

,

practice quizzes

,

pdf

,

ppt

,

shortcuts and tricks

;