Weight, Force, Mass & Gravity | Forces & Motion | Physics | FuseSchool
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- Опубліковано 11 січ 2020
- Weight, Force, Mass & Gravity | Forces & Motion | Physics | FuseSchool
In this video you will about weight, force, mass and gravity.
When it says 56 kilograms on your bathroom scales, what are you actually measuring?
Well, if you said weight, like most people would, then you are sort-of wrong!
Kilograms are a measure of mass, but the scales actually measure the force of gravity on your mass, so they do actually measure weight, but this should be in units of force, - Newtons. Confused?
Keep watching!
CREDITS
Animation & Design: Joshua Thomas jtmotion101@gmail.com
Narration: Dale Bennett
Script: Bethan Parry, Keith Ross and Alistair Haynes
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![What is Mass Vs. Weight in Physics? - [1-5-11]](http://i.ytimg.com/vi/EBRTa8UGY2s/mqdefault.jpg)
![What is Mass Vs. Weight in Physics? - [1-5-11]](/img/tr.png)
My teacher couldn't teach me this in an hour, and you've taught me this in like 7 minutes. BTW where's my "exam is tomorrow!!!" gang?
Same lol my teacher makes no sense
Right here 🤣
Haha me lool 😂 not excited
i love the fact that my teacher spent 1 hour 45 mins on this and i didnt get it but i understand it thanks to your 5 min video
Glad to hear that we could help 🙂
Thank you I understand most of it but my brother kept screaming so I couldn't hear it all XD
Most welcome 🙂
@Joanna ikr
This is great, will be using this for grade 6 today. Perfect!
Excellent 🙌
Thanks a lot :) ... The concept is well - explained in less time ... Very helpful !!
Most welcome! Glad it was helpful!
Shop keeper: sir I don't think you've got enough cash for 1kg of potatoes
Physician: it only weights 0.2kg on moon
LOL 😂
Thank You so much for this video, it cleared my concept and helped me a lot in my test, Thank You🙏🙏
Wonderful! Glad to hear that it helped 🤗
how would you calculate the force of gravity on another planet and what experiments could. you
do?
Thank You Sir. I am so inspired by your speaking skills. Great Video!!
Thank you so much!
Thank you so much. It's very practical and interesting.
You are welcome! Glad you liked it!
Good job Fantastic fuse school keep doing all physics content like this and also do a video on frames of reference newton's laws please I love your videos please please
Thank you! We are releasing three videos each week :) so make sure you check out what's new!
question: when doing an isometric exercise on a special machine, where the machine doesn't move, but, it senses the "Force" exerted onto the handle/foot pedals, and then tells you the equivalent mass per your pushing force, how can this be calculated? I know you have the gravity acceleration of 9.8 as a constant (imagine your handle is linked via a pulley to a downward stack of metal, and this "stack of metal plate" is computerized and can change infinitely), but how would the machine decide what mass value to use as you push harder and harder the immutable handle?
Sad he didn't reply to you
Thank you sooo much... I really needed to understand this for my exams....love this channel... Love from Pakistan,💓
You're always welcome 😊 Happy to help!
This was really helpfullll
Understood this concept so well now without any confusion! Thank u !!
Wonderful! Glad it helped!
This help me a lot
thank you soo much this helped me with my school :)
You're very welcome! Glad it helped!
Thank you for helping me with my fonal test
Our pleasure! Always happy to help!
POV: your here from school
Yep
yes
Correction: I’m here from home
No
How did you know?!?!
Thank you, I could have never understanded this topic without this video!
Thank you! Happy to help!
Thank you soooo much . It helpful to understand 🤗🤗
You're welcome 😊 Glad it is helpful!
Just a reminder you should be watching the video, not reading the comments. :)
Black hearts Club uh u got me
I- ehehhehe, HOW?
Really awesome thanks a lot dude
Happy to help!
I have question concerning the free fall objects if you don’t mind
In vacuum; or in anywhere else in which air resistance is negligible; the objects are subjected to weight force only; thus having equal acceleration... But let’s think of it in this way ... if weight force is actually the force that acts on a mass due to gravity.. then object A of 1kg mass is subjected to 9.8N weight force and Object B of 10kg mass to 98N.. then upon neglecting air resistance; an object subjected to a 9.8 N and another to 98N actually have equal acceleration because of what ?? Greater mass, greater inertia needs greater weight force to regulate the acceleration??
Exactly right, if the mass doubles the force of gravity doubles keeping the acceleration exactly the same.
@@keithross7058 Okay..Thank you Sir, appreciate your response
wow, that was soooo helpful, you r so underated and i was shocked by your subscribers, you deserve way more. like and sub btw.
Wow, thanks! Glad you joined our channel 🤗
@@fuseschool please upload more videos
@@fuseschool Consider the man who IS standing on what is the Earth/ground. Touch AND feeling BLEND, AS ELECTROMAGNETISM/energy is gravity. The Earth is blue, AND the sky is blue. SO, overlay THE EYE in BALANCED RELATION to/WITH what is the Earth ! (The BLUE SKY is ALSO translucent !) GREAT. Objects fall at the SAME RATE (neglecting air resistance, of course), AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. NOW, we proceed to the next step. The stars AND PLANETS are POINTS in the night sky. Invisible AND VISIBLE SPACE in fundamental equilibrium and BALANCE IS the MIDDLE DISTANCE in/of SPACE in fundamental RELATION to the universal fact that E=mc2 is F=ma. The Earth (A PLANET) involves BALANCED electromagnetic/gravitational force/ENERGY, AS E=MC2 IS F=MA. The Earth AND the Sun are CLEARLY E=mc2 AND F=ma IN BALANCE pursuant to what is the BALANCED MIDDLE DISTANCE in/of SPACE !!! Consider what is the speed of light (c), AND consider WHAT IS THE SUN. NOW, think about what is the Earth. Importantly, outer "space" involves full inertia; AND it is fully invisible AND black ! Great. Accordingly, the Earth is in BALANCE with what is the Sun, AS the orange Sun represents what is LAVA ON BALANCE !!! Great. (Notice the role and relation of what is the EYElid.) The MIDDLE DISTANCE in/of SPACE is universally balanced to/with what is THE SUN AND the speed of light (c), AS E=MC2 IS F=MA !!! Gravity IS ELECTROMAGNETISM/energy. Notice the black space of WHAT IS THE EYE, as the stars AND PLANETS are POINTS in the night sky IN BALANCED RELATION to/WITH what is the MIDDLE DISTANCE in/of SPACE; AS E=MC2 IS F=MA !!! The FULL DISTANCE in/of SPACE is truly linked AND BALANCED to/with what is THE MIDDLE DISTANCE in/of SPACE, AS E=mc2 IS F=ma IN BALANCE !!!; AS ELECTROMAGNETISM/energy is gravity !!!!!! GREAT !!!! Notice that the viscosity of lava IS BETWEEN that of WATER AND the Earth/ground ! The orange Sun is the same size as THE EYE. Outstanding. E=mc2 IS F=ma as what is the BALANCED MIDDLE DISTANCE in/of SPACE !!!! GREAT !!! LOOK at the progression AND THE BALANCE regarding FULL DISTANCE in/of SPACE, MIDDLE DISTANCE in/of SPACE !!!, AND A POINT (ALSO c) !!! E=mc2 IS F=ma !!!, AS ELECTROMAGNETISM/energy is gravity ON BALANCE !!! GREAT !!! It ALL CLEARLY makes perfect sense. BALANCE AND completeness go hand in hand. E=mc2 is F=ma. This NECESSARILY represents, INVOLVES, AND DESCRIBES what is possible/potential AND actual IN BALANCE, AS ELECTROMAGNETISM/energy is gravity !!! Gravity IS ELECTROMAGNETISM/energy ON BALANCE !!!
TIME is NECESSARILY possible/potential AND actual IN BALANCE, AS E=mc2 is F=ma; AS ELECTROMAGNETISM/energy is gravity. INDEED, TIME DILATION ultimately proves ON BALANCE that ELECTROMAGNETISM/energy is gravity; AS E=MC2 IS F=ma !!!!
INSTANTANEITY is thus FUNDAMENTAL to what is the FULL and proper UNDERSTANDING of physics/physical experience, AS E=MC2 IS F=MA ON BALANCE !!!; AS ELECTROMAGNETISM/ENERGY IS GRAVITY !!!
GRAVITATIONAL force/ENERGY IS proportional to (or BALANCED with/as) inertia/INERTIAL RESISTANCE, AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/energy is gravity. Gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE, AS E=mc2 IS F=MA; AS ELECTROMAGNETISM/energy is gravity. Accordingly, the rotation of WHAT IS THE MOON matches it's revolution !!! Notice what is the fully illuminated (AND setting) Moon in DIRECT comparison with what is the orange Sun !!!
Again, the stars AND PLANETS are POINTS in the night sky. A given PLANET (including WHAT IS THE EARTH) sweeps out EQUAL AREAS in equal times consistent WITH/AS F=ma, E=mc2, AND what is perpetual motion, AS ELECTROMAGNETISM/energy is gravity; AS E=MC2 IS F=MA ON BALANCE !!!!!! GREAT. Gravity IS ELECTROMAGNETISM/energy, AS E=MC2 IS F=ma !!!
By Frank DiMeglio
@@frankdimeglio8216 lol, u should make a video on this
Very Informative video
That was very helpful.Thankyou
Glad it was helpful!
Not my teacher sending us a link to this on our class team- 😂😂
😂
Sir could you pls tell that if there is a question related to this topic will the gravitational force value will it be given in the exam or should we memorise the different gravitational force values? and why did that 100 become 0.1 in the apple question? PLEASE REPLY ASAP
The values of different gravitational forces should be given. But to be sure, please ask your teacher about it 😉
And in the example with the apple, 0.1 is kilograms, as the mass was given in grams (100g) we had to convert it into kg.
How do you value the 'mass' of a object? Does our atmosphere on the earth surface count? If yes, do we count? Sun is made out of mostly hydrogen, and we calculate it in a whole, so does it meant even one gram of air in the air just in front of us have it's own gravity? Even if we can just 'tear it apart' easily?
Interesting question. All atoms have mass and are attracted by gravity to other masses: solids, liquids, gases, humans, air, all matter. Just because water turns to ice or evaporates into water vapour, its atoms are influenced by gravity just the same - they retain their mass. Our atmosphere is attracted to the earth by gravity, and that's what keeps it in place and creates atmospheric pressure. Check out this website: www.scienceissues.org.uk , you can learn about gravity and how it affects atmospheric structure.
I learned something thank you
Glad to hear it 🙂
Thanks I understood that very well
Awesome! Glad you did!
Thank you! I was once confused about the difference of mass and weight
Most welcome! Glad it helped!
Amazing! Thank you so much for this wonderful video.
You are most welcome 🙂
Great, cleared the concept!
Great to hear it!
Thank you so much!
You're welcome!
Thank you!!
No worries!
"Per second Per second"
It’s because it was Per second squared(Per Second,Per second)
i was gonna comment that
This was soo helpful you explained it in like 7 mins but I understood it I wich school was like this
Glad it was helpful! Always happy to help 🙂
My teacher told me to watch this, it really helped:)
Awesome! Glad it helped!
Thanks so much👍😀😁
No problem 😊
thanks sir you rlly helped me
Most welcome! Happy to help!
Thank you! very helpful to me!
You're welcome! Glad it was helpful!
very good video i have exam tom. thx for the video
😄😄
Thank you.
No worries!
Understood
Thank u
Any time!
Bro u literally taught me this in 7 mins and my mom had to get me a 2 hrs extra class for this
THANKS PROFOUNDLY!
FROM BD! (BANGLADESH)
Always welcome ❤️
This is very helpful ty 😳💦
No problem 😊
The perfect channel
🤗💜
good job keep up the good work
Thanks, will do!
light ,sound and many other things have a speed what is the speed of gravity?
i hope someone can answer my question, what’s the difference between force and weight since the formula are same? or is it just the same thing? thank you in advance
there are different forces and weight is one of those forces
Weight is a force (from gravity) but there are other types of force, for example the electrostatic force between electrically charged particles, which incidentally is the origin of the force exerted by a stretched spring, where atoms are pulled slightly apart against the electrostatic forces of the bonds. Force = m x a but weight = m x g where g is the acceleration due to gravity.
@@fuseschool omg thank you for explaining !!
So basically
Living in Jupiter= FAT
(This is a joke)
Yup
Why does the voice over person kept saying "per second " twice?
I don't understand
Is it another way of saying " per second squared"?
Exactly! 🙂
@@fuseschool ohhh instead of saying m/s², you say m/s/s
Thanks
Yes 🙂
Good explanation 👍😉
Thanks! 😃
this is helpful
Glad it's helpful!
thanks sir it was very useful watching this video you should get more views than you do.
Thank you so much!
At 6:14 why bathroom scale is showing a reading of 143kg. I understand though measuring weight it shows us the unit of mass but the reading should be 1400 as multiplying 56(your mass) by 25(gravity of Jupiter) we should get 1400kg not 143kg. I can't understand why you guys multiplied 56kg with 2.5 though the gravity is 25. Can you guys please make it a bit clear for me
You are right, the weight on Jupiter would be 56kg x 25m/s^2 = 1400N (please, note the units), as we show at 6:05. But if you brought bathroom scales to Jupiter, which are calibrated in kg on Earth, where g=9.8m/s^2, they would show m = W / g, which is m = 1400N / 9.8m/s^2, which equals 142.8 or 143kg.
Great Viedo, just a question what Grade Physics is this?
Grades 8-11, depending on the country, school and the curriculum you follow. Do consult your teacher if unsure 🙂
this video is soo helpful for my homework thank you and btw i subscribed :)
Awesome! Thank you so much!
U made it so clear dude u must have a brain as big as Jupiter thx thx thx thank u so much
You're welcome!
Cool
Helpful vid thx :) but, why is the last question 1N? I thought we had to multiply 100 x 10?
Remember that mass needs to be in 'kg', so we need to convert 100g into kg, which is 0.1
0.1 x 10 = 1N
@@fuseschool ohh ok thank you very much!
My exam is tomorrow and i didn't understand a word and now i'm sure i won't get a zero
'hey bro how much do you mass?'
So, how about if we measured mass (kg) in Jupiter? Will it show the same result when we measured on earth?
The mass would still be the same, but the weight would be 2.5 times more than on Earth (see 6:20)
@@fuseschool ohhh, i'm sorry, i missed it, thanks anyway 👍
I under stand you more than my teacher
🤗❤️
per second per second
you helped me a lot thanks
Thank you! Glad you found it useful!
the earth revolves around the sun it is the sun heats a surface of the earth this surface becomes positive therefore another negative surface returns it is put thanks to the two poles which are negative and which are attracted by the sun.
And the mass is the number of elements that can be heated.
Thanks so much, this helped a lot for my exams 👍
You're very welcome! Glad it helped!
5:17 - Why did he multiply by 10? g=9.8
That's right, g=9.8m/s^2, but we have rounded it up to 10, as mentioned at 4:14
Its actually very helpful peeps
Thank you!
hello link from school. They couldnt be bothered to teach us so they sent us some links
Because of you l graguated
Wow, amazing!! So great to hear that 💜
im still confused 🥲 i have to do some sums like finding the weight but im confused on what i actually do to find it eg.the first one is 30kg and i have to find the weight how do i do it- 💀🖐
To find weight, you need to use this formula: W = mg, where 'W' is measured in Newtons, 'm' in kg, and 'g' in m/s^2 (acceleration due to gravity, which on Earth is 9.8 m/s^2)
So if your mass is 30kg, then to find the weight on Earth you need to multiply 'm' by 'g': W = 30kg x 9.8 m/s^2
This is vey informative I love it btw just subscribed :)
Yay! Thank you!
Bros LGBTQ in seventh grade
Why w = mg ?
you daam right we should move to the moon!
4:49, what's that noise, heard it?
Maybe we should all move to the moon😂.....btw thanks for the video understood the concept properly 😊
Awesome! 😊
OH WOW
If this is true, what is preventing us from being pulled deeper into Earth’s surface via gravitational force? Displacement; via the hard/solid surfaces on Earth’s surface.
My reason for stating the above is to ask this question. If our sun supposedly has a greater gravitational force than Earth; because of its comparison in mass to Earth. Then what is preventing the Earth and all of the other planets in our solar system from getting pulled farther into the suns gravitational force?
The best I could come up with is rotation.🤷♂️
But if this is true, then the rate at which a planet rotates could potentially be a factor in how strong a planet’s gravitational force is.
I personally don’t believe mass is the only factor in determining the strength of gravitational force a planet has.
This is only my opinion.
1. Think of you on a trampoline. The rubber 'floor' bends down and exerts a force on you equal to your weight (the force on you from gravity). When you stand on the earth the same thing happens, microscopically - the ground is displaced and the elastic force opposes your weight. The earth is made of solids and liquids, where the atoms are 'touching' - the electron shells of all these atoms repel each other and prevent them from collapsing, giving us the earth as we know it. There are huge stars in the universe called neutron stars where the huge force from gravity is able to overcome this repulsion of electrons and the atoms collapse into a sea of neutrons (made of proton+ plus electron-). Luckily for us the earth's gravity is not strong enough for that!
2. Swing a tennis ball round your head attached to a string. In order to keep the ball in orbit you have to pull continuously on the string. Let go the string and the ball doesn't fly away but instead it carries on moving in the direction it had just before you let go. So the same with the planets - without the force of Gravity the planets would simply move in a straight line. It is the force of gravity that pulls them round in orbit.
3. So no, however, the rotation of a planet will mean that the gravitational force is needed to keep objects on the planet's surface and the planet itself 'in orbit'. So an orbiting space station (for example) is kept in orbit by the gravitational force between the craft and the planet. Everything in the craft experiences the same force and orbit together. This is often called microgravity but this is not true - the force of gravity is still very much in force!
4. So the force of gravity depends only on the masses of the two objects attracted to each other and it decreases with the square of the distance between them.
but steel is heavier than feathers
Who got send by their teacher?
I did nőt know it -eiért your gravity
Volume is measure and weight is measure though very similar they don't mean the same.
Physics is theory which is for application in real life when not applied is only a science not really understanding and using it senselessly...
But all find interest in physics knowingly or unknowingly they are physics beings anyways..
Slight mistake in this video. The size of planets does not directly increase the gravitational feild strength, only the mass. If earth was made of cheese it would have a lower mass, and we'd all start floating. But, it would be the same size.
For example, Saturn is around 9x larger than earth, but the gravitaitonal feild strength is 10.5 N/kg compared to earths 9.8 N/kg. Not much of an increase even though its 9x the size. This is Because earth is much more dense than Saturn, and has a greater mass.
Well size also matters - the nearer you are to the centre of gravity the higher the force, so if two planets have the same mass, but one is denser than the other, the gravitational force will be higher at the surface of the denser one.
What do you think is it interesting?
"How much STUFF is inside an object." Classic.
That was so hard
Measures
Isendoorn 🅱️oi
So weight can change depends on were you are on earth because earth is not perfect sphere
Another slight mistake - The scales to measure your mass on another planet wouldn't nessecarily show another value - It depends what type of scale it is. If it's a spring balance then yes, it would change. But if it's a counterweight balance then it wouldn't change.
Thanks - I think we assume the scales are spring operated.
was it just me who heard him say meters per second twice every time he said it
no one
him
"meters per second per second"
Because its squared
hallo aus deutschland!
Hey you pro, what is the software you used for voiceover plz
Audition
The music is creepyyy broo
Why do you say per second two times