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

How much heat is required to convert