Question

In an experiment, a student placed a sheet of paper on a bar magnet, and iron filings were sprinkled on the

sheet of paper. Thereafter, the paper was gently tapped. The diagram below shows the final result of the experiment
Question 1
experiment
a Give the aim of the experiment. (2 marks)
o What conclusion could be drawn from the result
of such an experiment? (2 marks)
c. What could have happened if the iron filings had been replaced with grit? (2 marks)
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Answer 1

a. Aim of the experiment: To identify the magnetic fields around the bar magnet.

b. After tapping the paper, the iron filings align themselves according to the lines of the magnetic force of bar magnet. The magnetic field is more concentrated at the ends of poles as most of the iron fillings are attracted at the poles and the pattern form by iron filling shows the magnetic field of the bar magnet.

c. If iron filings will be replaced with grit, there will be no magnetic movement around bar magnet as grit is not a metal and do not have any magnetic properties.

Answer 2

Step-by-step explanation:

a) The experiment with paper, iron sprinkles and bar magnet was performed to show the presence of the magnetic field around the magnet.

o) In the experiment, when we placed two opposite poles and sprinkled the iron over, the iron filings were aligned between forces applied by the opposite poles that are they attract each other. When the same poles were placed facing each other, the iron sprinkles were arranged away from each other. This shows that opposite poles attract each other while the same poles repel each other.

c) If iron filings were replaced with the grit, the magnetic field will be stronger.