Hello.
The post is devoted to entertaining physics and concepts the weight and mass with which we deal every second and often confuse them.
Each time the ball falls under the force of gravity of the Earth (or another planet, if you play basketball on the Moon, let's say).
The main role in the fall is the weight of the ball, the force acting on the ball under the influence of gravity of the Earth. If the ball lies quietly on the surface, then its weight coincides with the gravity.
If he is thrown up, his weight ceases to coincide with the gravity of the Earth and the ball begins to fall with acceleration under the influence of gravity.
Gravity is a phenomenon under the influence of which all objects in the Universe are located.
We are influenced by the gravity of our planet, it attracts us and all objects in the vicinity (for example, the Moon or asteroids having inadvertently fly close to the Earth). In turn, the Sun influences our planet and other planets in the solar system.
All objects on Earth have their weight due to the planet. Weight and weight are not the same concepts, in weightlessness, the weight of all objects is zero, and the mass of each has its own, and also different units of measurement are used.
Mass is a measure of the inertia of the body.
Weight is the force with which the body acts on the support.
It's time for a little experiment.
Try to throw out of the window at the same time two balls: tennis and basketball, and despite the difference in mass, they both fall at the same time, air resistance is not taken into account if you throw paper and ball, the result will be different precisely because of air resistance.
With the help of this experiment, it can be seen that the acceleration of the free fall of all bodies has the same value.
At different points of the Earth, it may not be the same and vary from 9.83 m / s2 to 9.78 m / s2. A kilogram of body weight is 9.8 Newtons in weight and at different points on the surface of the Earth your weight may be less than the mass.
At the poles of the Earth your weight will be 0.5% more than on the equator, the heaviness in the mountains will weaken slightly and your weight will also be slightly less (those who want to quickly lose weight need to go to the equator or climb Everest, the second case is more effective, but more difficult ).
On the packages with products indicate the weight and weight, and if you take the package of candies to the moon, then their mass will remain unchanged, but the weight will be different, less than on Earth, because the gravitational force on the moon is less than 6 times on the earth.
Another plus in traveling on the moon is that you have to spend much less energy on foot walking, you can jump much higher than on Earth again because of the smaller in comparison with the Earth gravity, there are also minuses, it is primarily that our muscles, accustomed to overcoming earth's gravity in conditions of lesser gravity, will very quickly weaken and returning to Earth will cause a lot of problems.
I will summarize:
Weight is the force acting on the object, under the action of the gravity of the Earth, the weight is proportional to the mass and is measured in newtons, weight has a direction.
Mass is a measure of the inertia of the body, then how the body reacts to the applied impact or itself affects other bodies, measured in kilograms, has no direction.
Thanks for reading.
I ask the specialists not to judge strictly, because I have simplified everything and did not use formulas.
very interesting...
Good post I really like this post, I will wait for the next post. this is a great post
interesting read, thanks i enjoyed it.
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Good post I really like this post, I will wait for the next post. this is a great post
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STOPDo you mean weight and mass?
You can superscript your exponents using <sup-> </ sup-> (remove the - from each ) so it looks like this s2
the paper ball must also have equivalent mass to the regular ball ;) (a paper ball of similar mass could actually be pretty small and dense it might actually experience less air resistance than say a basket ball)
Lovely post. Keep it up.
Thank you