MEDIUM
7th West Bengal Board
IMPORTANT
Earn 100

A man standing on the bank of a pond aims his gun at a fish that is motionless near the bottom of the pond. Every time he fires his gun, he misses his target. Explain.

Important Questions on Sample Questions

MEDIUM
7th West Bengal Board
IMPORTANT
Environment and Science Class 7>Chapter 9 - Sample Questions>Sample Questions>Q 8
When the force applied on an object is increased by a factor of three, the displacement of the object changes by a factor of five. By what factor will the work change?
MEDIUM
7th West Bengal Board
IMPORTANT
Environment and Science Class 7>Chapter 9 - Sample Questions>Sample Questions>Q 8
With the help of an experiment establish the fact that action and reaction act on different bodies.
MEDIUM
7th West Bengal Board
IMPORTANT
Environment and Science Class 7>Chapter 9 - Sample Questions>Sample Questions>Q 8
How much heat is required to convert 5 g of ice at 0 °C into 5 g of water at 0 °C?
MEDIUM
7th West Bengal Board
IMPORTANT
Environment and Science Class 7>Chapter 9 - Sample Questions>Sample Questions>Q 8
One feels cold after a thorough drenching. Why do you feel colder when you stand below a revolving ceiling fan? Explain.
MEDIUM
7th West Bengal Board
IMPORTANT
Environment and Science Class 7>Chapter 9 - Sample Questions>Sample Questions>Q 8
What advantages do we get from the reflection of light?
MEDIUM
7th West Bengal Board
IMPORTANT
Environment and Science Class 7>Chapter 9 - Sample Questions>Sample Questions>Q 8
What would happen if the earth were not like a big magnet?
MEDIUM
7th West Bengal Board
IMPORTANT
Environment and Science Class 7>Chapter 9 - Sample Questions>Sample Questions>Q 8
How can we reduce the uses of energy?
MEDIUM
7th West Bengal Board
IMPORTANT
Environment and Science Class 7>Chapter 9 - Sample Questions>Sample Questions>Q 8
In which cases is the solar energy used? What are the disadvantages of depending too much of solar energy?