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Sreeshan · 2024-01-16T10:17:57.067Z

What is mass? • Mass is a fundamental property of matter that measures the amount of matter in an object. It determines an object's resistance to changes in motion (inertia) and its gravitational pull on other objects. The SI unit of mass is the kilogram (kg). We often misunderstand what mass and weight are... What is weight • Weight is the force exerted on an object due to gravity. It's not the same as mass, which is the intrinsic amount of matter in an object. The relationship between weight (W) and mass (m) is given by the equation: W = mg Weightlessness • Weightlessness describes the sensation of having no weight. It occurs when an object experiences free fall, accelerating solely under gravity's influence. While "zero gravity" is often used interchangeably, it's technically inaccurate because some gravity is still present. Why do we feel weightless? • No contact forces: In everyday life, we feel our "weight" because the ground (or another surface) pushes up against us, balancing the downward force of gravity. During free fall, this upward force is absent, making us feel weightless. • Equal acceleration: Even in free fall, gravity still pulls us down. However, if the entire spacecraft or environment around us also falls at the same acceleration due to gravity, we don't perceive any relative difference in acceleration between ourselves and our surroundings. This lack of "push" or "pull" contributes to the weightless sensation.

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Sreeshan

Jan 16

Edited: Jan 16

Mass and weight

in Sreeshan

What is mass?

Mass is a fundamental property of matter that measures the amount of matter in an object. It determines an object's resistance to changes in motion (inertia) and its gravitational pull on other objects. The SI unit of mass is the kilogram (kg). We often misunderstand what mass and weight are...

What is weight

Weightlessness

Why do we feel weightless?

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01	Updates as per my time table, reply for the comments for you	*	*	*	*	*
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03	Answered all questions on my posts till the previous date.	*	*	*	*	*
04	English daily woks	*	*	*	*	*
05	Reduce device time in to half an hour in a day (Phone calls, TV, youtube, sports videos, whatsapp, insta, FB etc). Phone should be keep with parents / grandparents		*	*	*	*
06	Involving in cleaning and mopping at Uyir in the morning Or Keep Uyir space clean and beautiful throughout the day.		*	*	*	*
07	Follow health and hygiene rules		*	*	*	*
08	Complete 3 personal responsibilities mentioned by parents			*	*	*
09	Support other children or help in their learning at least 20 minutes in a day			*	*	*
10	Find time to do more research on your passionate area. ( need extra post other than the subject post)				*	*
11	70 % and above marks attain any exam.					*