Exercises
S K Jain Science Solutions for Exercises
Simple step-by-step solutions to Exercises questions of Fun with Magnets from Science Based on the Rationalised NCERT Content. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.
Questions from Exercises with Hints & Solutions
Identify the odd one out by giving the reason:
| Magnesia | Magnes | Ironsmith | Greece |
Identify the odd one out by giving the reason:
| Iron | Cobalt | Silver | Nickel |
Show that a magnet has two poles. What are the properties of the poles of a magnet?
Mention three uses of magnets and electromagnets.
What are the properties of a magnet?
Why magnets should be kept away from electronic devices?
Why is the compass needle enclosed in a glass cover?
Solve the puzzle with the help of the clues given:
ACROSS
1. Force between two like poles of the magnets. (9)
2. Electrical device using magnets. (10)
3. A device that stores data on a magnetic strip. (10)
DOWN
4. Method of magnetising a piece of magnetic material. (8)
5. Prevents demagnetisation of magnets. (7)
6. Location on a magnet where the field is strongest. (5)
7. Material used for making permanent magnets. (5)
8. A non-magnetic material. (4)
9. A device to find out the geographical direction. (7)
