My Cart
Your Cart 0

    Your cart is empty.

  • Total (Amount) ₹0.00
NCERT Exemplar · Class 6 · Science

Chapter 13: Fun with Magnets

Practice each question, then open the answer or worked solution.

Read chapter PDFDownload PDF

Long Answer Questions

7 questions
Q14Written answer

Three identical iron bars are kept on a table. Two out of three bars are magnets. In one of the magnets the North-South poles are marked. How will you find out which of the other two bars is a magnet? Identify the poles of this magnet. 

Show solutionHide solution
Worked solution

Ans: Take the magnet that has the North and South poles marked on it. Keep both iron bars next to it, and both will be drawn to it since they are magnetic. So, one after the other, test each of the two magnet bars for repulsion. If the first magnet bar you grabbed repels the specified magnet bar, this will be the second one. Magnets both attract and repel, whereas iron attracts.


Q15Written answer

Describe the steps involved in magnetising an iron strip with the help of a magnet. 

Show solutionHide solution
Worked solution

Ans:  The following steps may be used to magnetise an iron strip using a magnet:

  1. Lay down the required iron strip to be magnetised on a solid wood surface.

  2. Place a bar magnet in your hands with one end on one edge of the strip and the other end on the other.

  3. Move the magnet along the length of the strip without lifting it until you reach the opposite edge.

  4. Repetition of the preceding stages.

  5. Place the iron fillings on the strip and expand them. If it is attracted, the strip will become magnetised; if not, repeat the procedures a few times more.


Q16Written answer

Fig. 13.6 shows a magnetic compass. What will happen to the position of its needle if you bring a bar magnet near it? Draw a diagram to show the effect of the needle on bringing the bar magnet near it. Also, draw the diagram to show the effect when the other end of the bar magnet is brought near it. 


seo images


Fig. 13.6

Show solutionHide solution
Worked solution

Ans: There will be deflection in the needle of the magnetic compass. The figure below demonstrates the working of the magnetic compass:


seo images


Q17Written answer

Suggest an activity to prepare a magnetic compass using an iron needle and a bar magnet. 

Show solutionHide solution
Worked solution

Ans: Using the approach below, you can make a magnetic compass.

  1. On a wooden table, place one needle.

  2. Move a magnet along the length of the needle without raising it.

  3. When you reach the needle's endpoint, raise the magnet and rub it in the same way again.

  4. Keep going in the same direction as before and repeat the steps.

  5. Now, in a water-filled container, set the needle on the cork.

  6. The needle will change and position itself in the "North-South" way.


Q18Written answer

Boojho kept a magnet close to an ordinary iron bar. He observed that the iron bar attracts a pin, as shown in Fig. 13.7. What inference could he draw from this observation? Explain. 


seo images


Fig. 13.7

Show solutionHide solution
Worked solution

Ans: Boojho can infer that the iron bar behaves like a magnet and posseess magnetic properties till it is in the vicinity of the magnet. The marking of the poles of the iron bar and the pin are shown in the figure below:


seo images


Q19Written answer

A bar magnet is cut into two pieces A and B, from the middle, as shown in Fig. 13.8 Will the two pieces act as individual magnets? Mark the poles of these two pieces. Suggest an activity to verify your answer.

 

seo images


Show solutionHide solution
Worked solution

Ans: The split magnet's components will function as two separate magnets. They'll have a North Pole and a South Pole as well. Using a compass or a test of repulsion between newly generated magnets, we may identify the poles of split magnets. 


seo images


Q20Written answer

Suggest an arrangement to store a U shaped magnet. How is this different from storing a pair of bar magnets? 

Show solutionHide solution
Worked solution

Ans: A soft iron is placed on the tip of a U-magnet, which is then placed in a wooden box.


To divide the bar magnets that are facing the same way, a wooden block is arranged between them, and the edges are attached to the soft iron bar. 


seo images


NCERT Exemplar Class 6 Science Solutions: Highlights

  • The NCERT Exemplar Class 6 Science Solutions works as a self-assessment guideline for the student.

  • There is more clarity supplied by the explanations because they deal with the foundational concepts.

  • Students from different Boards of Education can benefit from the solutions because they are based on the subject content. 

  • The concepts of science must be well understood rather than just memorized. NCERT Exemplar Book for Class 6 Science has questions that are suited for this task. It improves the students' ability to reason more effectively.