The classification chart below shows how some things can be classified.
Q. Which one of the following descriptions about A, B and C is correct?
An object P is brought near a bar magnet and its end marked Z is attracted to the South Pole of the magnet as shown below.
Q. Based on the information given, object P could be a___________.
Yuvi performed an experiment. He placed a sheet of plastic between two nails and a magnet as shown in the diagram below. The nails were attached to the magnet. Then Michael placed more and more similar sheets of plastic until the nails could no longer be attracted by the magnet.
Q. What is the aim of Michael’s experiment?
One day Sahil found an iron disc at the bottom of a heavy plastic tank half filled with oil as shown in the diagram below. He successfully removed the iron disc out of the tank with a magnet.
Q. Which one of the following statements is correct?
A magnet can be made weaker by:
We should not store a floppy disc near a magnet. Why?
In many household articles we can find a magnet instead of a lock or a bolt in the doors. Magnets are used in such places mainly to:
Which of the following does not contain a magnet in it?
The best way to separate a mixture of sand and iron filling is by:
The people who made mariner’s compass for the first time were: