This video was downloaded from education.ssc.nasa.gov/mvw_int... Sequence of videos: 1. Introduction 2. Stretching Mass 3. Air Powered Mass 4. Accelerating Mass 5. Closing
mass has been commonly described as weight, but it has been also referred to as electron volts per SOL squared or energy/c^2. What is the difference or similarity?
Correction: “A greater mass is _accelerated_ less by a _force_ as a smaller mass subjected to that same force.” But, a greater mass also is pulled by a greater force due to gravity. So, the greater force is offset by the greater mass’s inertia (aka resistance of mass to being moved) when trying to accelerate it. So, a greater force of gravity that pulls on a more massive object (with greater inertia) has the same acceleration effect as the smaller force of gravity that pulls on a smaller mass object (with smaller inertia).
Think of it a different way: If you’re in open space, you could “hold” a bowling ball in one hand and a baseball in the other hand, and you wouldn’t feel any “weight” from either because there is no significantly massive planet/asteroid/etc. close enough to appreciably pull the two objects “down.” BUT, if you then tried to pass the two objects across 10 meters to a friend, then pushing a bowling ball would still feel a lot like it would on earth-except watch out: it won’t drop out of your fingers so easily!-, and it would probably go as slow or fast as you “bowling” it on earth. 🎳 Meanwhile, you could throw the baseball somewhat similar as on earth…⚾️💨 💨 But watch out: YOU would go backwards a bit because of your push or throw! ⏪(And you’d also likely start spinning, too, if you tried either a bowling motion or a throwing motion! 🙃🙂🙃🙂🙃🙂🤣🙃😵💫)
+Leslie Matthews Because Pounds is a unit of force, not mass. The kilogram is the unit of mass mostly commonly used. In English units, the unit for mass is called a slug.
The unit of force strictly saying is pound-force (lbf) not lb. Pound from latin pondus means weight. That is just a tradition. The video is confusing. Even if they meant 360 pound-force (lbf) and 1 lbf = 4.4 N --> mass of astronaut on Earth = (360 lbf * 4.4 N) / 9.8 (m/s^2) = 161,63 kg = 360 lb --> That is true; So when they refer to weight of astronaut on Moon the calculations are --> mass of astronaut on Moon = (60 lbf * 4.4 N) / 1.63 (m/s^2) = 161.63 kg = 360 lb. The video is confusing because they use lb (pounds) referring to weight but it is equal numerically to weight only on Earth. The mass of 360 pounds (161 kg) is the same on Earth and on Moon but the weight of 360 lbf on Earth transforms to 60 lbf on Moon. Don't confuse yourself with this archaistic units just move to international system, please.
Interesting. Never heard of the pound force before. When we use the term pound, it is used synonymously with weight as you said. But no one uses the term pound as meaning the mass of an object. It is understood that your weight in pounds would change depending from the earth to moon. Basically, lb and lbf are used interchangably as far as I've seen. Agreed, the system should be switched. Won't happen anytime soon though.
gravity = mass x acceleration Newton's 2nd Law : Force = mass x acceleration is gravity a force? But Einstein said that gravity isn't a force... can someone explain?
The unit of force strictly saying is pound-force (lbf) not lb. Pound from latin pondus means weight. That is just a tradition. The video is confusing. Even if they meant 360 pound-force (lbf) and 1 lbf = 4.4 N --> mass of astronaut on Earth = (360 lbf * 4.4 N) / 9.8 (m/s^2) = 161,63 kg = 360 lb --> That is true; So when they refer to weight of astronaut on Moon the calculations are --> mass of astronaut on Moon = (60 lbf * 4.4 N) / 1.63 (m/s^2) = 161.63 kg = 360 lb. The video is confusing because they use lb (pounds) referring to weight but it is equal numerically to weight only on Earth. The mass of 360 pounds (161 kg) is the same on Earth and on Moon but the weight of 360 lbf on Earth transforms to 60 lbf on Moon. Don't confuse yourself with this archaistic units just move to international system, please.
imagine going into space just to read a script for a school video that isn't even monetized
lol
I'm watching this video for school.
Me too
bruh
Me too
@@user-cu6ij1ui4i lol same thing i said
Me to
Fucking around on the international space station.. #Goals
Don't think other women and men to be like your mother and father 😊
imagine a gunfight in zero gravity
mass has been commonly described as weight, but it has been also referred to as electron volts per SOL squared or energy/c^2. What is the difference or similarity?
Really so great. In my life its a really amazing demontration for us. Thanks a lot.
I am using it for school thank you
Glad I watched this :)
Isn't it like being in water and uncontrollable swimming
here for school
who else here just for school
“Okay Nicole, show us your stuff”
That comment out of context and that pic. Lol
My man needs some good jokes
If greater mass is less affected by acceleration, why are objects of differing masses get attracted to earth in the same time?
More mass means more inertia, gravity has to pull with a greater force (weight) to get more massive objects to accelerate at 9.8m/s2
Correction:
“A greater mass is _accelerated_ less by a _force_ as a smaller mass subjected to that same force.”
But, a greater mass also is pulled by a greater force due to gravity.
So, the greater force is offset by the greater mass’s inertia (aka resistance of mass to being moved) when trying to accelerate it.
So, a greater force of gravity that pulls on a more massive object (with greater inertia) has the same acceleration effect as the smaller force of gravity that pulls on a smaller mass object (with smaller inertia).
Think of it a different way:
If you’re in open space, you could “hold” a bowling ball in one hand and a baseball in the other hand, and you wouldn’t feel any “weight” from either because there is no significantly massive planet/asteroid/etc. close enough to appreciably pull the two objects “down.”
BUT, if you then tried to pass the two objects across 10 meters to a friend, then pushing a bowling ball would still feel a lot like it would on earth-except watch out: it won’t drop out of your fingers so easily!-, and it would probably go as slow or fast as you “bowling” it on earth. 🎳
Meanwhile, you could throw the baseball somewhat similar as on earth…⚾️💨 💨
But watch out: YOU would go backwards a bit because of your push or throw! ⏪(And you’d also likely start spinning, too, if you tried either a bowling motion or a throwing motion! 🙃🙂🙃🙂🙃🙂🤣🙃😵💫)
Same
noice
12. Yorum
When you guess what it feels to be in space, " It is hopeless....
Samed for man huh
11. Yorum
This guy desperately needs some hair gel.
how can you state that weight is the FORCE of gravity then say "on earth astronaut would weight... POUNDS (which is the unit for MASS)
+Leslie Matthews Because Pounds is a unit of force, not mass. The kilogram is the unit of mass mostly commonly used. In English units, the unit for mass is called a slug.
The unit of force strictly saying is pound-force (lbf) not lb. Pound from latin pondus means weight. That is just a tradition. The video is confusing. Even if they meant 360 pound-force (lbf) and 1 lbf = 4.4 N --> mass of astronaut on Earth = (360 lbf * 4.4 N) / 9.8 (m/s^2) = 161,63 kg = 360 lb --> That is true; So when they refer to weight of astronaut on Moon the calculations are --> mass of astronaut on Moon = (60 lbf * 4.4 N) / 1.63 (m/s^2) = 161.63 kg = 360 lb. The video is confusing because they use lb (pounds) referring to weight but it is equal numerically to weight only on Earth. The mass of 360 pounds (161 kg) is the same on Earth and on Moon but the weight of 360 lbf on Earth transforms to 60 lbf on Moon. Don't confuse yourself with this archaistic units just move to international system, please.
Interesting. Never heard of the pound force before. When we use the term pound, it is used synonymously with weight as you said. But no one uses the term pound as meaning the mass of an object. It is understood that your weight in pounds would change depending from the earth to moon. Basically, lb and lbf are used interchangably as far as I've seen. Agreed, the system should be switched. Won't happen anytime soon though.
International organization of something (standardization i guess) said to use lbf to solve this problem or better don't use it at all.
Else. It is strange. Because in my country we also use term weight but refer to mass. Funny.
im watching this for school lol
who else here in 2021
@Aaron Naylor no
it was useful
Allah rızası için layk atın
Bu yorumu beğenenin yazılıları 100 olur inş
gravity = mass x acceleration
Newton's 2nd Law : Force = mass x acceleration
is gravity a force?
But Einstein said that gravity isn't a force...
can someone explain?
The difference: In the formula for gravity the acceleration part is the acceleration caused by gravity and not just acceleration itself.
5:50-6:00 is so funny! "where did she go?", "come back!", "SUPERWOMAN!"
Chezzy
Who would go to space to teach kids.
Why
The unit of force strictly saying is pound-force (lbf) not lb. Pound from latin pondus means weight. That is just a tradition. The video is confusing. Even if they meant 360 pound-force (lbf) and 1 lbf = 4.4 N --> mass of astronaut on Earth = (360 lbf * 4.4 N) / 9.8 (m/s^2) = 161,63 kg = 360 lb --> That is true; So when they refer to weight of astronaut on Moon the calculations are --> mass of astronaut on Moon = (60 lbf * 4.4 N) / 1.63 (m/s^2) = 161.63 kg = 360 lb. The video is confusing because they use lb (pounds) referring to weight but it is equal numerically to weight only on Earth. The mass of 360 pounds (161 kg) is the same on Earth and on Moon but the weight of 360 lbf on Earth transforms to 60 lbf on Moon. Don't confuse yourself with this archaistic units just move to international system, please.
who came from school in 2021?
very good graphics lmao
sinatra gms anyone
The bigger the mass the greater force of attractions 😏
9 years lol
super women lol
3434
school
How much bullshit will you believe .. lmao .
man this sucks (jocking lol)
Terrible video why would you use mass in the definition of weight and weight in the definition of mass
dude they didnt
13.yorum