List three ways by which a magnet can lose its magnetic strength.
Important Questions on Magnets
Think and answer why the needle of a compass always points in the North-South direction?
Think and answer why an iron strip becomes magnetised but a plastic rod does not?
Think and answer.
Two magnets if brought close to each other either attract or repel.
Think and answer.
Magnets must be stored with their opposite poles beside each other.
Read the passage and answer the question.
A few hundred years ago, there lived a king called Hong Ti in China. He was one of the first persons to use a magnet for a definite purpose. He got a special kind of statue fixed in his chariot. It was the statue of a lady with an extended arm and it behaved peculiarly. No matter in which direction the chariot went, the statue would rotate and the arm would always point in the North-South direction.
What do you think the statue must have been made of?
