EASY
7th West Bengal Board
IMPORTANT
Earn 100

Question Image
Is there any force acting between the two opposite poles? Is it attractive or repulsive?

Important Questions on Physical Environment

EASY
7th West Bengal Board
IMPORTANT
Environment and Science Class 7>Chapter 1 - Physical Environment>Exercise 25
Bring the pole 'N' of the magnet held in your hand near the pole 'S' of the suspended magnet. What do you see now? Do the two opposite poles still attract each other?
Question Image
EASY
7th West Bengal Board
IMPORTANT
Environment and Science Class 7>Chapter 1 - Physical Environment>Exercise 25
Between attraction and repulsion, which one is the surest experiment of a magnet?
EASY
7th West Bengal Board
IMPORTANT
Environment and Science Class 7>Chapter 1 - Physical Environment>Exercise 26
Touch a nail with another shown in the below picture. Do they attract each other?
Question Image
EASY
7th West Bengal Board
IMPORTANT
Environment and Science Class 7>Chapter 1 - Physical Environment>Exercise 26
Question Image
Hold the bar magnet as shown in the figure. Touch a nail to one of its poles and allow it to cling to the magnet. Touch another nail to the first one and leave it. What can you see? Why is the second nail hanging from the first one? Why is it not falling?
MEDIUM
7th West Bengal Board
IMPORTANT
Environment and Science Class 7>Chapter 1 - Physical Environment>Exercise 26
Question Image
In the above picture, is the first nail attracting the second nail? Why?
MEDIUM
7th West Bengal Board
IMPORTANT
Environment and Science Class 7>Chapter 1 - Physical Environment>Exercise 26
Question Image
Take several nails and see whether you can make a chain of hanging nails. Now carefully hold the first nail (in direct contact with the magnet) take care so that no nail falls from the chain. Slowly take away the magnet. What can you see? Why do the nails fall?
EASY
7th West Bengal Board
IMPORTANT
Environment and Science Class 7>Chapter 1 - Physical Environment>Exercise 27
Could you separate the two poles of the magnet?
EASY
7th West Bengal Board
IMPORTANT
Environment and Science Class 7>Chapter 1 - Physical Environment>Exercise 28
A suspended bar magnet points north-south. If a friend of yours approaches it with another magnet in his pocket, what will happen? Will the suspended magnet still point towards north-south?