Question 1 :
Fill in the blank: When a bar magnet is broken; each of the broken part will have ................ pole/poles.

Question 2 :
Paheli has this puzzle for you. You are given two identical bars which look as if they might be made of iron. One of them is a magnet, while the other is a simple iron bar. How will you find out, which one is a magnet?

Question 4 :
<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 5 :
,<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c676f59b460d7261e602.jpg' /> Four identical iron bars were dipped in a heap of iron filings one by one. The above figure shows the amount of iron filings sticking to each of them. Which of the iron bar is likely to be the strongest magnet ?

Question 6 :
<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 8 :
A magnet was brought from different directions towards a toy boat that has been floating in water in a tub. Boat floats without changing its direction. Which of the following is a reason for this?

Question 9 :
Spread some iron filings on a sheet of paper. Now, place a bar magnet on this sheet. What do you observe?

Question 10 :
Choose the correct option(s) for : Magnet can be repelled by

Question 11 :
<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 12 :
<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 13 :
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 14 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c6e9f59b460d7261e653.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 toy cars close to each other such that the rear side of car A faces the front side of car B as shown in the figure. Do they move as before?

Question 15 :
Fill in the blank: In a bar magnet, magnetic attraction is ............... near its ends.

Question 16 :
A magnet was brought from different directions towards a toy boat that has been floating in water in a tub. Boat moves away from the magnet when north pole is brought near its head. Which of the following is a reason for this?

Question 17 :
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 18 :
<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 19 :
A cylindrical magnet has only one pole. State true or false.

Question 20 :
State true or false: A compass can be used to find East-West direction at any place.

Question 21 :
In olden days, sailors used to find direction by suspending a piece of _______.

Question 22 :
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 24 :
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 25 :
<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?