Force and laws of motion class 9 Malayalam I Physics I CBSE I Inertia I Newton's First Law of Motion

#lawsofmotion #CLASS9physics #9THSCIENCE
Class 9 physics chapter 2
Introduction to Force
A force is an effort that changes the state of an object at rest or at motion. It can change an object’s direction and velocity. Force can also change the shape of an object.
To know more about Force, visit here.
Balanced and Unbalanced Forces
When balanced forces are applied to an object, there will be no net effective force acting on the object. Balanced forces do not cause a change in motion.
Unbalanced forces acting on an object change its speed and/or direction of motion. It moves in the direction of the force with the highest magnitude.
Frictional force
The force that opposes relative motion is called friction. It arises between the surfaces in contact.
Example: When we try to push a table and it does not move is because it is balanced by the frictional force.
First Law of Motion
A body continues to be in the state of rest or uniform motion in a straight line unless acted upon by an external unbalanced force. The First Law is also called the Law of Inertia.
Inertia
Basically, all objects have a tendency to resist the change in the state of motion or rest. This tendency is called inertia. All bodies do not have the same inertia. Inertia depends on the mass of a body. Mass of an object is the measure of its inertia.
More the mass → more inertia and vice versa.

[@Easyphysicswithjesnof]

Watch Top 30 MCQs from the lesson force and laws of motion : kzbin.info/www/bejne/q5PUaaGDgaiMgZo

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[@Easyphysicswithjesnof]

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Understood Examples are really useful as we are having a lot of application level questions than direct questions

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[@Nishasejo]

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[@Sivakumar-q1o]

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[@sajeevkr900]

A passenger in a moving train tosses the coin and it falls behind him.what can you say about the motion of the train? Ma'am please explain in detail If possible include this in mcq questions of this chapter

[@ahlamhussein6508]

A passenger in a moving train tosses a coin upward which falls behind him. It implies that the motion of the train is accelerated because due to inertia the coin falls behind . Hope you understood

[@syamms7493]

Due to the inertia of motion

[@Englishdotcom1]

Helpful explanation.

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Railway test ന് പഠിക്കാൻ വന്നതാ. വേറെ level class😱. എല്ലാം നന്നായി മനസിലാക്കി തരുന്നു മനസിലാക്കി പഠിപ്പിക്കുന്ന ടീച്ചർ 😍.

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[@Easyphysicswithjesnof]

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Madam, work and energy chapter full explanation video chaiyummo with numericals

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[@Easyphysicswithjesnof]

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[@sajeevkr900]

Ma'am please explain what is normal reactive force? I haven't heard it yet 😭

[@Easyphysicswithjesnof]

Normal reactive force means, when an object is placed on a surface (may be a table top, road, or even ur palm), the surface will apply an upward force which will help the object to overcome gravitational pull. (That’s why when we hold a book, the book is not falling down, even though gravitational force is acting on it). This upwards force applied By the surfaces against gravitational force is called normal reactive force

[@sajeevkr900]

@@Easyphysicswithjesnof book is not falling down cuz of our muscular force as well right?

[@sajeevkr900]

?

[@sreevibhu]

Thanks miss🙏

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[@Easyphysicswithjesnof]

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For a object to continue an state of motion there is no an there

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Whre i can 5nd part 2 of force and laws

[@Easyphysicswithjesnof]

Hope u could find the playlist in the channel

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[@sabheeshramachandran9340]

Miss can you give me the link of part 2

[@Easyphysicswithjesnof]

kzbin.info/aero/PLDbSDF3l4PRyDerruEprC_NaOzqvWzYFB All the videos of the chapter✌🏻

[@sabheeshramachandran9340]

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Experienced explanation

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