3 minutes ago, I had no idea I needed a giant Newton's Cradle.

I would love for her to be my physics teacher. It only makes sense when she does it lol.

your videos made my love for physics much deeper !!!! That it has become so deep that it is more than the depth of pacific ocean !!!!!

These videos are coming out literally the day after each of my class's unit tests on each of these topics 😂

Love your channel, my 10 year old niece adores you and you make her love for math and science even stronger 🤗.

I heard about you when I saw you on the saint Jude's live stream and I thought your channel would be interesting, so I subscribed and I don't regret it at all.

3:40 Good job! You're getting better with the parabolas of the markers!!

She attacc she protecc but most importantly, she collide(ecc?)

you're teaching everything my school is trying to cram up us about. thanks, love you!!

As an Aerospace Engineering major, I can't say any if this is new to me... that being said I'm seriously loving this series. Thanks for making math and science so interesting and engaging.

Another Great class Professor ! I am so glad that you are showing all of these, instead of being hidden away teaching in some old University ! Thank You!

Out of all the videos I make my nephews and nieces watch, yours are what grabs them. It tickles me that they are interested in science.

exactly how my teacher explained and its nice she explained yesterday right before this vid

Love your enthusiasm when explaining things :-)

I saw the two index finger balance of a yardstick demonstrated years ago on Mr. Wizard ! Still use to this day for finding the approximate center of pvc pipe. Works every time.

Thanks so much for creating and sharing this educational and entertaining video. Great job. Hope that each day you are feeling better than the day before 🙏

When she says the name of this series.... Reminds me of agent Coulson saying "Strategic Homeland Intervention, Enforcement and Logistics Division" 😂😂😂

I really like the end explanation of particle physics.

Hi, Diana, that is amazing keep it up! I love your explanation

I wish this kind of video was freely available back when I was in highschool. Its never too late I guess, nearly 15 years later.

OMG... You are just trynna help me complete my entire physics course of class 11th.... Thankyou Didi..❤️

Thanks for the video, Dianna. Could you consider making a more detailed video about ball collision in the pool? There are 90 and 30 rules of deflection after hit and it souls be interesting to understand the physical reasons for that

Me its like waiting upto midnight to watch your videos 😀physics is love

That's complicated for me as my dad and brother had a total time on the railroad of 85 years :) I no nothing of the specifics of Physics (but am learning from you) I just knew half because of seeing it so many times, but I never knew the physics of it. I would say it has a lot more importance in outer space.

Thank you for allowing us to come and learn physics. Quietly without pressure from teachers and students who Excell in mathematics 😎

Wow!? Clearly the best one ever!!😎

We once played handball with a superball in a large shower room. Tile everywhere. The superball can be spun when hit. It is hilarious how fast the ball goes and the wild way spin changes it. Also try flicking a wedge shaped piece of cork, like the old fashioned ones from wine bottles. The cork is the ball. The batter has stick and stands the appropriated distance. The cork can be flicked with the thumb or spun like a baseball with hand and wrist. The thumb flick gives best spin. The cork at about 10 meters can curved about 1/3 to 1 meter. ( broom handles work. )

love ur passion for physics

It's so cool that you make gigantic versions of objects, such as the huge Newton cradle in this video, the bowling ball that almost hit your face, and the human-size Atwood machine. And now you have cats in addition to cows!

Wow this felt really authentic. Chemistry and physics really have so many similar concepts.

You are best I really understand everything you teach. Thanks sister 😊☺☺

I love Physics and Science all of that stuff! A body in motion stay in motion unless acted upon by a outside source?

I am not sure if this was brought up before. But, I was told the reason why the white Q-ball was able to return to the same pocket because of say a scratch, was because the diameter of the Q-ball is smaller than the other ones.

It's been a while a have not come to this channel and it makes me smile that Physics Girl seems so happy to talk about science. It seems so strange that I wonder if she is genuinely like that or if it's a commercial based behaviour (I already know the answer but I can't help but wonder)

Dianna “Crocodile” Cowern: “That’s not a Newton’s Cradle. THIS is a Newton’s Cradle!”

Dianna and I have an ongoing pedagogical debate about how to demonstrate algebra in intro physics. Well, it would be a debate if she ever replied. What all the other train car collisions will look like viewed in one equation: Much of physics study involves learning how to "read" an algebraic equation that describes some phenomenon. What is the formula telling you? How does it behave? We have a great example from the colliding train cars to look at. If you hold off before plugging in numbers and manipulate the equations first (that's the debate!), you can visualize the entire domain of final states that can result after the collision. Think of varying the masses of the train cars like a volume slider controlling your soundtrack from the movie π. With a little algebra you can create a comprehensive equation that allows you to see everything at once. Let's split off into a parallel universe at 5:03 and investigate these specific momentum equations a little further. (In this universe the element Diannasium has the curious property, when under bombardment by positrons, of sending the experimenter back in time to the Solvay Conference of 1927.) Here Dianna equates the initial and final momentum equations, because the momentum is conserved, to get m_1 • v_i = (m_1 + m_2) • v_f Then m_1 v_f = --------------------- • v_i m_1 + m_2 This is the equation she says is useful to investigate. She plays with varying the masses to see how the final velocity relates to the initial velocity of the oncoming mass. For m_1 = m_2 she gets v_f = (1/2) • v_i like after 5:03 in her original universe. Check! Now for the approaching rail car much less massive than the stationary car containing 42 kilotons of pure Diannasium (enough to send the entire MIT ΣΠΣ chapter and two faculty advisors to early 20th century Brussels), the denominator will be much larger (and ≈ m_2) than the numerator, so the final velocity will be small. Sanity check: Think throwing an egg against President Ivanka standing on a stationary hoverboard. She wont budge much. She never has. Check! Conversely, when the oncoming mass is much larger than the stationary mass, the contribution of m_2 in the denominator is negligible compared to m_1 and the quotient will be close to 1. So the final velocity of the joined masses is darned close to the first mass's velocity. Sanity check: Dianna asks you to remember when the Titanic hit and dragged along Admiral Dawson's yacht in New York Harbor and the cruise ship didn't even notice? Check! Then she tells you the algebraic form of this mass coefficient is commonly seen in physics and math, thus it is highly practical to know the behavior of this term at these special points and boundaries. Relate it to your commonsense knowledge of what things do in the world when they collide inelastically. This can make the formula "come alive" for you if you understand it on a visceral level. Dianna expounds that now you even have enough information to mentally visualize and sketch a plot of this coefficient based on the ratio of the masses. Is that cool or what?!?! Then I enter the studio and say, "In physics, the beauty of its formulas is in equal measure to the power of its computations! Let's to shuffleboard!!!" and an engrossing conversation ensues. Later: Ok, let's get back to the original universe with this...switch here.....zzzwang! What the? -- "Guten Tag, professor Einstein! Bonjour, madame Curie!"

How convenient for me. I am learning this in chemistry right now

Mind blown 🤯

Thank you!

Both in high school and University physics 101 I found this to be the hardest subject

Reminds on Djed pillar. Shock wave flower. Where some areas instead of taking losing speed due to back forths motions among (balls on string of Newton cradle) ionic pillars are bouncing of barriers of next iteration therebt gaining it.. Pipe or that lamp that has connecting switch ropes. Wormholes. There is a gif of a huge big man jumping in water with ball, creting negative sling catapult bubble like that bounce among big and small balls pushing ball he was holding way in the air. Wow! Indeed. Thanks Diana girl of Physics! :-)) PS I could extrapolate and abstactly say that col-lision has cold color column colar ..COL part ..anyways that is photonic informational grid net web , something yes, that explains all kind of couplings among photons and electrons, among sphere and collase into Riemann Avatar flower of light torpedoes parking places on those latticies. Kinda. :-)) Plucking the string and reverbs.

I really like the way she explains the concepts

Elastic: MaterialReturn. 2:16 Pool balls elastic? Sure.. they return to the pockets, or the rack. Due to Forces of Interaction.

Great video! Please keep up the great work! Been a while since freshman year in college... Isn't the derivative over time, so 1/2*Kg*m/s^2, not 1/2*Kg*(m/s)^2? That would imply that the ratio was shared between meters and seconds (m::s), not m::s^2 Think you say this even as you're talking about it, but in comparison to the elastic, the square is outside the ratio notation...

Enjoyed very much....

I understand that 101 physics education is important, but I've subscribed to this channel for more advanced and lesser known stuff.

18:47 "What happens when you have balls of different masses?" That's actually pretty normal. Also of different heights.

Hey, a request-Can you do a video on work done? Thanks a lot love your videos clears all my concepts!

If I've figured it out correcetly, the reason that when you release *two* Newton's Cradle balls at the same time from one side that then two come up/out the other side is exactly because that's the only way you can conserve both momentum and kinetic energy. For only one ball to 'react' you'd need twice the velocity to conserve momentum, but you'd need sqrt(2) times as much velocity in order to conserve kinetic energy, so that won't work. I didn't do the rest of the detailed working out to see why it's two balls reacting with matching velocity of the two incident balls rather than, say, the outermost ball going a bit faster than the inner one of the pair. But, I think that's ruled out because any ball will only be accelerated whilst in contact with the previous one, so there's literally no way to get the outer one going faster, only, at most, the same speed as the inner one. Also it can't be slower, because then the inner one would still be driving it... until they match.

I've really been enjoying relearning, and learning, with this series. However, early in this video I had one of those bad classroom moments. When presented with the problem I realized that If I had memorized the previous equations I could solve this, but I hadn't. Thanks for making me feel like a teenager again. I guess. 🤪

Technically after the 2 masses impact against each other (in the example of the 2 trains or cars) the final velocity will be less than 6m/s (less than the half of the original speed v1) because good part of the energy will go also wasted in sound and heat. 12 meter per second is a good speed!

I loved the introduction till 1:02 , video is also great 👍

Thanks 🥰

Well, I can’t say that Dianna wasn’t trying to make physics interesting to an English major like I was in college. Two Shakespeare references is definitely a plus. It helps to remind us that even geeks are people too.

about in-elastic collisions: if some of the energy is lost to heat why dont some of the momentum get lost to heat?

Just Waiting for AP PHYSICS to redress my concepts!😄

she's like "nooo paper, i'm not ready to explain the dynamics of springs!"

I wonder how having very little mass like a neutrino works with it's collisions being rare and with specific objects like heavy water atoms. Or how waves of a photon in the double slit can be a wave colliding into the waves if the atoms making up a detector. Are the elastic or inelastic sticking and leaving mass or transferring energy to be detected as a certain point.

I was waiting for this video only. ☺️

Very good video!

Your are awesome Good knowledge

Thank you

This video is very informative

An elementary school science teacher I had used Hot Wheels cars and track to demonstrate a variety of principles... something children could relate to ..

Just differentiating between elastic and inelastic collisions... wish my HS teachers would have been as clear as Dianna.

Why did we never learn the negative relative velocity trick for elastic collisions?! It looks so good and helpful!

12:00 The math is not all that difficult, however, it produces two valid results. Either v1’ = 0 and v2’ = v1 (what we expect) or v1’ = v1 and v2’ = 0 (ball one misses ball 2).

Ur the best physics girl

I never knew how a Newton’s cradle worked before... this really helped.

Always awesome how you manage to explain things so that I understand them easier than when our professors try to teach it at college...

_When two worlds collide_ _The anger and the pain of all those who remain_ _Two worlds collide_ _Who will be left alive_ _No place to hide when two worlds collide_

would you do a program on NANO PYYSICS?

Stringer Bell taught me everything about elastic and inelastic goods.

Thank God that when I studied it, we called an inelastic collision - a plastic collision. this is much less confusing. "plastic" reminds me of plasticine, you can not have an elastic collision with plasticine. LOL

I've always wondered what causes super-bounces on trampolines! :D

Clapping hands elastic or in elastic If the mechanical coupling device fails would the kinetic energy transfer be greater on the second car🤔🤔🤔

Do more videos on Quantum physics like you used to, Newtonian is so limiting !! ☹️

Physics trivia - Descartes tried to develop a theory of inelastic collisions where the particles were infinitely hard and didn't bounce but didn't smoosh either. His effort was a disaster. Ended up with eternal vortices or something. Sometime I'll try to find a link. (My apologies - it's been a long, long time since I studied this.)

Could you explain how we got the kinetic equation K=1/2 (mv²) please ? I never got how they derived that one, it's not even explained in Feynman's course.

Newton Craddle - Lift one ball and release, one ball comes out the other side: Lift two balls and release, two balls come out the other side: Lift three balls and release, three balls come out the other side (the ball in the middle keeps moving): Lift four balls and release, four balls come out the other side (two balls in the middle keep moving): Lift five balls (all) and all five balls come out the other side, duh!

So, this question/statement is based on the premise that sound is a form of energy. Which it is, right? As is always the case with your examples, let's take friction out of the picture. :) If I understood correctly all those years ago a Newton's Cradle slows down over time because some energy is "lost" in the collision through sound. Sound doesn't travel in space (a vacuum); although I may be wrong with that rule too. So will a Newton's Cradle run longer in space because there is no perceivable sound? (ignoring the friction of air thing) Just because we can't hear the sound doesn't mean it isn't generated, right? It just doesn't travel any distance. I'm just following your idea of taking things to extremes. If we start a Newton's Cradle too far away to hear it the "loss" of energy through sound still applies. Please explain all the ways I am wrong with these questions/statements (I'm sure there's a few).

I think rocket should be on a ship's center of mass . exhausted at back still an option but moving the center of mass would be much more full efficient

Is there any perfect elastic collision? What do you think Diana?

Can u do AP Physics C Electricity and Magnetism content

⌚is time colliding into something?

One clarification, an elastic collision requires complete conservation of mechanical energy. That’s important for AP Physics 1 students to understand if asked to verify the nature of a collision.

Mam I am Nikunj Deep your obedient Indian student it's my humble request kindly make video on radioactivity

What was going on when the paper you wrote on wanted to roll back up????

Can you guide me about what is isotope shift experiment in Nuclear physics..

do you think billiard is perfectly elastic collision, or just elastic collision?

15:45 = "The Stick That Did Not Tip"! 😁

Its like hold the energi and remove the energi back

Pls anyone explain how to get to the derivative...I wanna know why we have to use it And how did we get there...

I've never been so early to a Physics Girl Video.

Wanna fall in love with Physics, follow this girl!

what do you call your bookshelf?

What if you have a circular Newton cradle, will you keep storing energy

Question, dont these equations assume that the collisions are perfectly head on? I.e. no deflection occurs

can you do an electromagenetic induction video ASAP

What if the Newton's Cradle was really big? Is there a size where the last ball doesn't recieve the energy and momentum of the first?