Gravitational Field Introduction

The gravitational field is introduced and illustrated. For a constant field and a non-constant field around a spherical object.

0:00 The two force of gravity equations
0:55 The constant gravitational field equation
2:25 Gravitational Field Lines
3:16 What is a gravitational field?
4:33 The gravitational field equation around a spherical object
5:48 Drawing the field lines around a spherical object
7:02 Are gravitational field lines real?

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Thank you to Tony Dunn, Christopher Becke and Jonathan Everett for being my Quality Control Team for this video.

Thank you to Youssef Nasr for transcribing the English subtitles of this video.

[emza.the.robustdrexlermad_]

if we were taught this way at school, nobody could sleep in class...i luv it sir keep up the good work

[LunaticalGaming]

Dude, I swear your ending punchline always gets to me and makes me kinda sad a little because I know that's the end of the vid and I still want to learn more.. Great stuff and you are doing wonders for everyone :)

[matrixate]

Absolutely brilliantly done! Best explanation on the web!

[wolfmangoland]

Awesome video. I am addicted to your videos lol.
AP Physics 1 test is in two days and your videos are the best way to review the course. Thank you for posting these videos.

[fansdelchavodel]

You deserve way more views and likes for this, you made this topic so easy to understand. :)

[Srvelis]

Extending those Parallel lines up towards Mount Everest means that they would gradually get further apart. That imagery is brilliant when you take in the consideration the entire gravitational field around earth. The image I have in mind is the magnetic field.

[sangeenkhan]

Video in two sentences;
The gravitational field strength not merely depend upon force of gravity but also on mass.
Two objects occupying same location in Gravatational field may have different gravitational force but have same gravitational field strength.

[PrashantSingh-rmzr]

Now this is called creative way of teaching and even i could understand the whole video🤟🤟🤟

[wulphstein]

Abstract





Use a laser to split a laser beam into two sets of photons,
p1 and p2, that are connected by a special kind of hypothetical entanglement
called a thread.  A thread is a proxy for
a small piece of spacetime.  Use
centrifuges to redshift p1 photons, blueshift p2 photons.  The idea is to induce a time dilation across
the thread.  Since it’s a piece of
spacetime, then it should acquire a length contraction as well, which is qualitatively
like a curvature.  The output of a laser
beam would be a curvature beam.  A curvature
beam would act like a tractor beam.

[tynannutbean]

haha, our teacher sent this to us to take notes, love the video man!

[torrr]

this Video is helping me so much !! I am really bad in physic and always upset with it, however this one make me got the concept of Gravitational field. thank you :)

[chanakyasinha]

Enjoying physics.... My way of understanding, 😍😍😍😍

[Impavelok]

my mom listens to the intro : son, wtf are u listening to?

[donboyd]

wow i love the way you make urself teach and learn amazing

[tomjones]

A little too much razzle dazzle for me but great information thank you I am interested in understanding how gravity works and if it can be adapted to the small scale (smallish) like if you had a space station a really big one like the size of the u.s. could you use a central rotating axis to generate a kind of gravity core in the center to create a limitless energy supply? There might not be an answer for this yet but that's the point of research thanks for the video.

[toocool]

how r u making such hifh quality videos and NOT getting more subs

[triJack]

Do you think Physics c or physics 1&2 are better for college credit? I want to get a BS in physics!

[dannyguy]

Any chance of making any more physics electricity and magnetism videos?

[reeb]

But doesn't an object have a size? So, another object being attracted to it would be more drawn by other parts of the object that are closer than parts that are farther away. If an object is large enough in size, couldn't this imbalance potentially have a significant effect on the attraction due to gravitation? Or does using the center of mass as a reference point cancel out the disproportionality due to size?

[FlyingKeo]

It seems to me you are using (small) M for Mass and also (small) M for metre in your explanation line of why N/kg is the same as m/s^2. (gravitational acceleration & gravitational field strength equivalence) I was rather confused by the `m` mix-up at first.
Otherwise, well explained.