Textbook Solutions: Magnets | Eureka Plus Class 6: Book Solutions, Notes & Worksheets PDF Download

I. Tick (✔) the true sentences and correct the ones which are false. 

1.
Ans: True

2.
Ans: True  

3.
Ans: False
A magnet attracts only certain metals, not all kinds.

4.
Ans: True  

5.
Ans: False
Like poles of two separate magnets will repel and unlike poles will attract each other.

6.
Ans: True

7.
Ans: False
Magnets can be natural, like magnetite, or human-made. 

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II. Answer the following questions in one sentence. 

1.
Ans: Copper and aluminum are non-magnetic.

2.
Ans: The two poles of a magnet are the north pole and the south pole.

3.
Ans: If unlike poles of two separate magnets are brought close to each other, they will attract each other.

4.
Ans: Maximum force in a horseshoe magnet is found at its poles.

5.
Ans: Two separate magnets move away from each other when like poles (either north-north or south-south) are brought close to each other.

III. Answer the following questions in two to three sentences. 

1.
Ans: The directive property of a magnet is its ability to align itself in the north-south direction due to the Earth's magnetic field.

2.
Ans: A compass helps us know directions by utilizing the directive property of a magnet. The needle in the compass, being a magnet, points in the north-south direction.

3.
Ans: An iron needle can be magnetized by stroking it with a magnet in one direction, aligning its molecules in the south-north direction, making it a temporary magnet.

4. 
Ans: A magnet will lose its magnetism if exposed to heat, hammered, or dropped on a hard surface.

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IV. Illustrate the following:

1.
Ans: 

2.
Ans: 

3.
Ans: 

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V. Think and answer

1.
Ans: You can use the needle as a makeshift compass by rubbing one end of the needle on your clothes or hair to magnetize it. Place the magnetized needle on the cork, and it will align itself in the north-south direction, helping you determine the direction.

2.
Ans: Suspend the magnets in such a way that they can freely rotate. The end that points towards the north is the north pole, and the other end is the south pole.

3.
Ans: Draw a line drawing of a rod magnet with a marked north and south pole. For the circular magnet, show the alignment of molecules in a circular pattern, maintaining the north and south poles at appropriate locations on the circle.