MEDIUM
7th West Bengal Board
IMPORTANT
Earn 100

Draw the diagram of a circuit that consists of a battery made from four cells, conducting wires and a switch kept in the “off’ position.

Important Questions on Sample Questions

MEDIUM
7th West Bengal Board
IMPORTANT
Environment and Science Class 7>Chapter 9 - Sample Questions>Sample Questions>Q 8
A coin is kept on a cardboard placed over a glass. If the card is tapped quickly, the cardboard flies off, but the coin falls in the glass. Explain this observation.
MEDIUM
7th West Bengal Board
IMPORTANT
Environment and Science Class 7>Chapter 9 - Sample Questions>Sample Questions>Q 8
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.
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
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

Give one example for each of the following.

  • Rotational motion
  • Circular motion
  • Compound motion.
HARD
7th West Bengal Board
IMPORTANT
Environment and Science Class 7>Chapter 9 - Sample Questions>Sample Questions>Q 8
What physiological problems can arise if the concentration of salt in our blood increases.
MEDIUM
7th West Bengal Board
IMPORTANT
Environment and Science Class 7>Chapter 9 - Sample Questions>Sample Questions>Q 8
You are given two colourless aqueous solutions; one is acidic and the other is basic. How can you identify them? (You are not allowed to taste them because that is not safe)