A cricket ball of mass ' $m$ ' is thrown upward with some initial speed. If the air resistance is neglected, what forces are acting on the ball when it reaches its maximum height ?

Important Questions on Force

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8th Andhra Pradesh Board

IMPORTANT

Physical Science Class 8>Chapter 1 - Force>Think and discuss

Two identical bars, one which is steel and the other a magnet, are painted with the same colour. How can you tell which one is magnet using only these two bars? (don't break the bars)

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8th Andhra Pradesh Board

IMPORTANT

Physical Science Class 8>Chapter 1 - Force>Think and discuss>Q ●

A system of two bodies A and B are placed as shown in figure. How many forces are acting on A and B respectively?

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8th Andhra Pradesh Board

IMPORTANT

Physical Science Class 8>Chapter 1 - Force>Think and discuss>Q ●

Why is it necessary to separate contact force into a normal force and frictional force? Give at least two reasons.

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8th Andhra Pradesh Board

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Physical Science Class 8>Chapter 1 - Force>Think and discuss>Q ●

Play arm wrestling with your friend. How can you explain the winning of the game by using the concept of net force? Name the forces acting on the arm and their direction while playing the game. Try to draw FBD for this situation.

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8th Andhra Pradesh Board

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Physical Science Class 8>Chapter 1 - Force>Improve your learning>Q 1

What is a force? What changes can be produced by a force?

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8th Andhra Pradesh Board

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Physical Science Class 8>Chapter 1 - Force>Improve your learning>Q 2

State an example of a situation mentioned in which a force changes the speed of an object.

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8th Andhra Pradesh Board