Fun with Magnets - Class 6 - Science
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Extra Questions - Fun with Magnets | NCERT | Science | Class 6
Which of the following may be destroyed when kept near a magnet?
A) Switch
B) Hard Disk
C) Tubelight
D) Bulb
The correct answer is B) Hard Disk.
Hard disks utilize magnetic strips to store data. The presence of a strong magnet near a hard disk can lead to data damage or corruption. It is advised to avoid placing magnets in the vicinity of hard disks, as well as personal computers and mobile phones, to prevent data loss or device malfunction. Both PCs and phones contain components that are sensitive to magnetic fields.
We should keep CDs, DVDs, ATM cards away from magnets because
A CDs, DVDs, and ATM cards contain magnetic materials, so they may become magnets.
B CDs, DVDs, and ATM cards may get damaged by the influence of magnets.
C None of the above.
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Sign up nowQuestions & Answers - Fun with Magnets | NCERT | Science | Class 6
Fill in the blanks in the following:
(i) Artificial magnets are made in different shapes such as __________, __________ and ____________.
(ii) The Materials which are attracted towards a magnet are called________.
(iii) Paper is not a ______ material.
(iv) In olden days, sailors used to find direction by suspending a piece of ___________.
(v) A magnet always has __________ poles.
(i) Artificial magnets are made in different shapes such as bar magnet, horse-shoe magnet, and cylindrical.
(ii) The materials which are attracted towards a magnet are called magnetic.
(iii) Paper is not a magnetic material.
(iv) In olden days, sailors used to find direction by suspending a piece of magnetite.
(v) A magnet always has two poles.
State whether the following statements are true or false:
(i) A cylindrical magnet has only one pole.
(ii) Artificial magnets were discovered in Greece.
(iii) Similar poles of a magnet repel each other.
(iv) Maximum iron filings stick in the middle of a bar magnet when it is brought near them.
(v) Bar magnets always point towards North-South direction.
(vi) A compass can be used to find East-West direction at any place.
(vii) Rubber is a magnetic material.
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Sign up nowA magnet was brought from different directions towards a toy boat that had been floating in water in a tub. Affect observed in each case is stated in Column I. Possible reasons for the observed affects are mentioned in Column II. Match the statements given in Column I with those in Column II.
Column I | Column II |
---|---|
Boats get attracted to the magnet. | Boat is fitted with a magnet with north pole towards its head |
Boat is not affected by the magnet. | Boat is fitted with a magnet with a south pole towards its head |
Boat is fitted with a bar magnet with south pole towards its head. Boat moves towards the magnet if north pole of the magnet is brought near its head. | Boat has a small magnet fixed along as its length |
Boat moves away the magnet if north pole of the magnet is brought near its head. | Boat is made of magnetic material |
Boat floats without changing its direction. | Boat is made up non-magnetic material |
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