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Last edited 26 days ago by Learn LoopHQ.

Chapter: 04. Force

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How does force affect the shape of an object?

What significant invention, besides his laws of motion, is attributed to Sir Isaac Newton?

Why do Kabaddi players rub their hands with soil before a game?

Why does a rolling ball eventually come to rest on the ground?

Can we see force?

List the three types of non-contact forces.

What is force commonly defined as in everyday life actions?

Give one example of force as a push.

Why are vehicles fitted with wheels instead of flat blocks for movement?

What makes it difficult to drive on wet roads during rains?

Give one example of static friction from daily life.

Why do buses and trucks have heavier and wider tires than cars?

Describe the experimental setup used to demonstrate that rolling friction is less than sliding friction.

How does moisture on the ground affect the force of friction between a cricket ball and the ground?

How does friction help us to walk?

Give one example of force as a pull.

Who formulated the universal law of gravitation?

Name two things that exert force naturally.

What is the relationship between the roughness of surfaces and the force of friction?

Why do forest fires sometimes occur naturally during hot summer months?

What type of friction is experienced when a flat block is moved over a flat surface?

What is the main characteristic of a contact force?

State one major disadvantage of friction in machinery.

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