Question 1 :
Bar magnets always point towards North-South direction. State true or false.

Question 2 :
State true or false: Maximum iron filings stick in the middle of a bar magnet when it is brought near them.

Question 4 :
You are given an iron strip. How will you make it into a magnet?

Question 5 :
State true or false: A compass can be used to find East-West direction at any place.

Question 6 :
Similar poles of a magnet repel each other. State true or false.

Question 7 :
Artificial magnets are made in different shapes such as _______, _______ and _______.

Question 8 :
The given shows different positions in which one pole of a magnet is placed near that of the other. The answer indicates the resulting action between them for each situation. [ ? - S ] = Repulsion

Question 9 :
In olden days, sailors used to find direction by suspending a piece of _______.

Question 10 :
State true or false: A cylindrical magnet has only one pole.

Question 11 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c6e8f59b460d7261e651.jpg' /> A person takes two small toy cars and labels them A and B. He places a bar magnet on top of each car along its length and fix them with rubber bands as shown in the figure. In car A, keep the south pole of the magnet towards its front. Place the magnet in opposite direction in car B. Now, he places the two cars close to one another as shown in the figure. Do they move towards each other and collide?

Question 12 :
The materials which are attracted towards a magnet are called _______.

Question 13 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c6e5f59b460d7261e64d.jpg' /> A person takes a bar magnet and puts a mark on one of its ends for identification. Now, he ties a thread at the middle of the magnet so that he can suspend it from a wooden stand as shown in the figure. He makes sure that the magnet can rotate freely. Now, he lets it come to rest. He marks two points on the ground to show the position of the ends of the magnet when it comes to rest. Next, he rotates the magnet by gently pushing one end in any direction and lets it come to rest. Again, he marks the position of the two ends in its position of rest. Do you find that the magnet always comes to rest in the same direction?

Question 14 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c6e5f59b460d7261e64c.jpg' /> A person takes a bar magnet and puts a mark on one of its ends for identification. Now, he ties a thread at the middle of the magnet so that he can suspend it from a wooden stand as shown in the figure. He makes sure that the magnet can rotate freely. Now, he lets it come to rest. He marks two points on the ground to show the position of the ends of the magnet when it comes to rest. Next, he rotates the magnet by gently pushing one end in any direction and lets it come to rest. Again, he marks the position of the two ends in its position of rest. Does the magnet now point in a different direction?

Question 16 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c6e6f59b460d7261e64e.jpg' /> A person magnetises an iron needle using a bar magnet. Now, he inserts the magnetised needle through a small piece of cork or foam. He lets the cork float in water in a bowl or a tub making sure that the needle does not touch the water as shown in the above figure. He rotates the cork, with the needle fixed in it, in different directions. He then notes the direction in which the needle points when the cork begins to float again without rotating. Does the needle always point in the same direction, when the cork stops rotating ?

Question 17 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c6e7f59b460d7261e64f.jpg' /> A person takes two small toy cars and labels them A and B. He places a bar magnet on top of each car along its length and fix them with rubber bands as shown in the figure. In car A, keep the south pole of the magnet towards its front. Place the magnet in opposite direction in car B. Now, he places the two cars close to one another as shown in the figure. Do the cars remain at their places?

Question 18 :
Fill in the blank: A bar magnet is immersed in a heap of iron filings and pulled out. The amount of iron filling clinging to the ______.

Question 19 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c6e1f59b460d7261e647.jpg' /> What materials did you find to be non-magnetic from the above Table?

Question 20 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c677f59b460d7261e603.jpg' /> Boojho dipped a bar magnet in a heap of iron filings and pulled it out. He found that iron filings got stuck to the magnet as shown in above figure . Which regions of the magnet have more iron filings sticking to it ?

Question 21 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c6e2f59b460d7261e648.jpg' /> Is there any material common in all the objects in the table that were attracted by the magnet?

Question 22 :
Fill in the blank: North pole of a magnet can be identified by ____.

Question 23 :
A magnet was brought from different directions towards a toy boat that has been floating in water in a tub. Boat is not affected by the magnet. Which of the following is a reason for this?

Question 24 :
Choose the correct option(s) for : Magnet can be repelled by

Question 27 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c6e3f59b460d7261e64a.jpg' /> Spread some iron filings on a sheet of paper. Now, place a bar magnet on this sheet. Do you observe that more iron filings get attracted to some parts of the magnet than others as shown in the figure?

Question 28 :
A magnet was brought from different directions towards a toy boat that has been floating in water in a tub. Boat moves towards the magnet if north pole of the magnet is brought near its head. Which of the following is a reason for this?

Question 31 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c672f59b460d7261e5fc.jpg' /> A bar magnet is cut into two pieces A and B, from the middle, as shown in figure above Will the two pieces act as individual magnets?

Question 32 :
It was observed that a pencil sharpener gets attracted by both the poles of a magnet although its body is made of plastic. Name a material that might have been used to make some part of it.

Question 33 :
N - N shows positions in which one pole of a magnet is placed near that of the other. Which of the following action indicates this?

Question 34 :
Choose the correct option(s) for : Poles of the magnet can be identified by

Question 36 :
The given shows different positions in which one pole of a magnet is placed near that of the other. The answer indicates the resulting action between them for each situation. [ S - N ] = ?

Question 38 :
Spread some iron filings on a sheet of paper. Now, place a bar magnet on this sheet. Do the iron filings stick all over the magnet?

Question 39 :
What about opposite poles — do they attract or repel each other?

Question 40 :
Paheli and Boojho went to a place where a lot of waste material was piled into huge heaps. Something exciting was happening! A crane was moving towards the heap of junk. The long hand of the crane lowered a block over a heap. It then began to move. What will happen next?

Question 41 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c675f59b460d7261e600.jpg' /> Three magnets A, B and C were dipped one by one in a heap of iron filing. Figure above shows the amount of the iron filing sticking to them. The strength of these magnets will be

Question 42 :
State true or false: Similar poles of a magnet repel each other.

Question 43 :
A tailor was stitching buttons on his shirt. The needle has slipped from his hand on to the floor. Can you help the tailor to find the needle?

Question 44 :
Spread some iron filings on a sheet of paper. Now, place a bar magnet on this sheet. What do you observe?

Question 45 :
Fill in the blanks: Artificial magnets are made in different shapes such as __________, __________ and ____________.

Question 47 :
Fill in the blank: In a bar magnet, magnetic attraction is ............... near its ends.

Question 48 :
S - N shows positions in which one pole of a magnet is placed near that of the other. Which of the following action indicates this?

Question 49 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c673f59b460d7261e5fe.JPG ' /> Observe the pictures A and B given in above figure carefully . Which of the following statement is correct for the above given pictures ?

Question 50 :
A cylindrical magnet has only one pole. State true or false.