She's always excited. That's the kind of life we need to live.

She's just my English and Science teacher at the same time

Update: Whooooo! Thank you so much - I am covering free fall this week in class and was thrilled to see this video pop up in my list of options with real captions! As a physics teacher, I love these videos and would love to use them in my classes, but the auto-captions that they currently have do not meet ADA standards for my Deaf and Hard of Hearing students. KZfaq makes it pretty easy to go through and edit the captions for grammar and accuracy (ie adding punctuation and correcting any words that did not transcribe properly). I know many of your videos are on DCMP (described and captioned media program) with full and proper captions, would love to see that for this series of physics videos as well!

Love what you're doing... just one request - please carry the units through the calculations! It's really important, and helps catch errors. It's also really hard to train young engineers to carry units if they didn't get into the habit early!

I do not recall any of my teachers explaining these phenomena so clearly when I was still a school student. But there may be other factors at play - like my attention span back then.

“Oops,.... mistakes were made...” lol 😂

Round gravity to 10ms*¹ ; Physics students shout of joy

Sing along: 🎼🎵She's a good girl, loves her mamma Loves Physics and Science, too... And she teach... Free fallin'🎵🎼

This is my favourite types of videos . I can learn anything if Diana's teaching !.❤️❤️

Mesmerized by the world's largest Sharpie. Great video!

this is such a refresher course since we will be having our physics 1 midterm exam next week. and your enthusiasm to the topic is so contagious. cant wait for other lessons

Really love these. Just wish you'd solve your equations for the unknown and then put in the values with units. I could really see using these videos as review, especially for students who are struggling. Like your conceptual approach.

This helped me so much, teachers who are enthusiastic and interested in what their talking about helps me learn so much easier. It’s insane how I understood everything you said, but just couldn’t grasp the concept out of the mouth of my school teacher. Thank you so much, I will continue to be watching your explanations, I’m so happy I get this! Keep doing what you do I bet it helps a lot of kids who are stuck with teachers who could care less if we know what’s going on! Sad to say there are some people like that out there 😔 once again, THANK YOU SO MUCH

At 62 years old (and having failed maths many years ago) my ability to remember details is sadly diminished however videos like this allow me to get a grasp on the basics behind things which I enjoy. Add in that Dianna puts so much enthusiasm into them that I just feel mch more motivated in general afterward.

This was SHAMAZING! You have done this so easy and well. Congrats!

The thing which I love the most about her is that she explains every topic after explaining the basics of it and with excitement which makes it more interesting.

I am so excited this video is here- I just complained today to my physics students who are remote learning that we would probably have to come back to this video or skip it because we were ready to move on and it wasn't posted yet. Did I miss the upload schedule, because I feel like it has been a while since the first one, and if the goal is to follow AP Physics content before the test they will hopefully be coming more often.

There is just something extremely satisfying about watching you draw science. You have a very peaceful and soothing voice as well.

Wow. This dredged up some memories of physics in high school from 1996. I love it!

Extremely helpful! For the first time I actually understood acceleration a=m/s×s when you said "at the rate of 10 m by s EVERY SECOND. Such a basic thing but the first time it was so clearly pointed out! The lesson was too good!

This is a really great course. It is hard to explain maths and physics together. You cleared a huge misconception. Thanks for teaching something no one else does. Please keep it up 👍

Dianna, what a great video, perfect timing with the start of the school terms. Thank you so much. X

I'm amazed..!!! You just taught me what I've been learning for months in minutes and very easily and simple... Wish I saw the video earlier.

This series reminds me of my school days. Nice work Dianna. Get well soon!

Just love your style of teaching You've become my fav KZfaq channel also one of my fav teachers!!☺️☺️

DIANA, you rock! This is EXACTLY like what you learn in a college level into to Physics, or AP Physics (of course you also learn electricity, kinetic and potential energy, momentum and inertia, trigonometry...)

Thank you so much for making this series! I was in grade 11 physics from February to March (semestered) and now I can catch up for grade 12! (maybe April, maybe next year)

Another successful day of learning about physics. Thanks Dianna

You teach in a great way, I'd love to watch the entire course!!!

We literally covered free fall motion in my physics class today! This is awesome!!

As always, very educational. Thank you!

This series is amazing.

She is the best 💯🔥🔥 She is more than my expectations. The best teacher I could ever ask for. Love from India ❤️💚💛💜🖤

I’m a Scottish 13 year old, but I love these videos. Although I can’t understand all the content I try and pick up a fair amount. I don’t normally comment on videos but this series has been very good so I felt obliged to

absolutely amazing job! thanks a lot for that! keep it coming

Nicely done and thanks for the lesson.

This really helps me since Im further studying in physics(right now in kinematics chapter) to become an astrophysicist or an aerospace engineer.

Awesome, thank you Dianna.

Hi Diana Another lesson learned.. Can't miss your videos.. Awaiting for more physics... Thanks diana..🙏

Loved the mini interview at the end!😊

Hi Diana ! You are a great teacher, GREAT Explanation !!! Loved It Thank you for giving a better and fun way of learning PHYSICS!! And HAPPY PHYSICSING !!!!!!!!!!!!!!!!!!!

This was a great installment - thanks for creating and posting. I was a little lost in the 1st episode (probably just me), but I really followed this one nicely. Thumbs up!

I love using meters in per second terms! Thanks for making physics equations easy!

Hi Dianna, that was a brilliant explanation, even i understood it, i love your style, you make it fun xx

Excellent fun learning channel ....please keep going. I took Physics in 1988 in University a good refreshing review! Many young people want to learn but often tedious boring classes. 80% dropped out changed major in second year of Physics. You are like Feynman s granddaughter 😎

Okay first of all did not expect a How Ridiculous clip at the beginning of this, collab when available please. Also this series reminds me why even though I went down a different academic route I still have a soft spot for how amazingly fun physics can be.

I really like your channel and the idea of making a physics 101 course on KZfaq. Thank you very much. I wanted to point out that when calculating the distance that the ball reached after bounceing of the trampoline, it's not too correct to start mesureing time from the moment the ball changed direction and then saying the initial velocity is not zero. I know that you know that and it won't make any noticeable difference, but I think it's fundamental to point out that in linear motion it's impossible to the moving object to change to the opposite direction immediately with a non-zero velocity. Again I really like your channel, and I think your efforts are amazing.

I'm looking forward to get to the parabolic trajectories and the coriolis effect; tengo ganas de llegar a las trayectórias parabólicas y el efecto Coriolis. I'd liked the today's lesson.

Yes! I love this series.

Always waits for your video very good description thanks for the information about the experiment on antimatter you room is awesome it gives the Vibes of physics Happy physicsing

I remember when I first learned about this on high school and felt so contra intuitive. I decorated the formulas for the exams but only truly learned the subject a few years later. Amazing explanation Diana! Congrats :)

I’m learning about this right now! Thanks for the video :)

13:44 1) I love how you just ignore the units till the end. 2) I also love how you bring 9.8 but then you approximate it immediately so it does not really matter:p

My goodness these are so great. The maths is so far beyond my comprehension but i love to listen. My 9yo daughter wants to be an astronaut for NASA so i put these on for her. The guests at the end are a great idea. Telling us how they use it in there jobs. 👍

Wow! Another great lesson from Physics girl! Thank you so much ❤️ oh, may I ask when will the third lesson be? Thank you Physics Girl! 💗

The trip up & the trip down is only equal if you consider the upwards push will be equal to the downward pull of the gravity (which is a constant)

Nice shoes! Also, thanks for the physics lesson!

You are my one of the favourite teacher!!😃

I'm in master on hydraulics and hydrology, with geology background, and I still need those videos. Thanks alot !

Amazing dianna loved it

15:43 - For anyone else confused that "2.5" is "two times five" not "two point five". The 2 is from multiplying both sides by 2 to get rid of the 1/2 on the right hand side. The 5 is the 'd'.

Woah I'm so happy she's talking about AP Physics 1, since it's such a new course. I remember taking AP Physics 1 and only getting two tests taken from the previous years as resources LOL

Shoe looks superb😉 Loved the vid Thanks!

I am from india Follow ur video also Like ur work for fall in interset with physics Keep continue ur class

I love ur videos and explanations 💖💖

When I throw a bottle, it takes me longer to accelerate it to full speed than it takes the table to stop it at the end. It's hard to ignore the asymmetric non-free-fall parts. If you watch someone juggling, it's a lot more symmetric in the throw and catch, and the peak is more intuitively in the middle.

Amazing video! This helped!

well theoretically if we consider the air friction that is always against the direction of motion, it will take longer to fall. Because on your way up friction is downward which adds to the gravity and on your way down friction is upward which is opposing the gravity and hance acceleration on the way down is smaller.

I love you dianna.....love the way you teach🥺

What...no joke at the end? Another awesome video!

Great explanation, understood every topic so clearly. Thanks from India :)

16:20 When she use d=at²/2, she is thinking about the phenomenon backwards in time. That's why she get a positive acceleration. Which doesn't make sense at first because you're decelerating. If we take the other way in time we get: right before entering the pool, she had Vo=10 m/s. Therefore ∆y= Vo•t+a•t²/2, meaning 2.5 = 10•t+a•t²/2. The time it takes is 0.5s so 2.5=5+a/8, a= - 20 m/s². Which is equal in magnitude but opposite in direction.

Edit: great intro to free-falling calculations. Love it. When you said, jumping in a pool and calculating the decceleration was easy, I immediately loudly opposed that idea. With the typical oversimplification of most physics BASE lessons, yes, it seems easy at the basic level. Here we ignore so many real-life factors that even a failed physics student like me can see the problems for an exact measurement cropping up right, left, and center. For a basic ball-park figure, yes, the base calculations will give a very good approximation to several decimals exactness, possibly. But once you start figuring in some truely significant variables this problem immediately jumps from trivial to doctorate level of difficulty. Due to the change of resistance of air to water, the effect of buoyancy of air in your body in comparisson to the water changes at non-trivial levels. Ask any SCUBA diver to take down an empty balloon and fill it underwater at a specific depth, then carry it upwards during surfacing. The buoyancy of the expanding air is enormous. The same applies to your lungs depending on where you take your last gasp of breath before submerging. I know that air is simply a very very dry liquid when it comes to fluid dynamics. Buuuut: the air in your lungs get's compressed when you dive into water. Thus the depth of the water you reach changes your decceleration due to increased compression of air, thus lowered buoyancy. I'd wager a bet that calculating the EXACT time for your decceleration in the water, plus the EXACT distance you SHOULD reach below the surface level of the water becomes INSANELY complicated when you factor in all relevant and significant variables. I'd definitely assume that this is not trivial, but truely worthy of a dissertation level problem.

I love this example, I needed this a year ago for my physics exam :P

You just explained freefall better then the 5 edpuzzles my teacher assigned us thank you for my tomorrow class

Antimatter is amazing, your class is great didn't think be in to it but I am, love the stars and everything space.

Informative video, focus on concepts and basics .

yay! finally lesson 2. 😀😀

thanks for the Tom Petty ref! haven't listened to him in awhile and that changes today. Also, your channel is one of the absolute best!

You’re the best Diana.

I am really thankful I subscribed to you.

i'm about to take my very first physics class, as a 33 year old. but it is engineering physics, or calculus based physics. i am quite nervous about it, but excited too, because physics is super interesting.

OMG we went over this in my physics class, and this seriously helped a lot!!!!! Thank you for being awesome!!!!!

very entertaining. my daughter loves it!

Free fall calcs really really ask for the example of the booster free fall back to the drone ship. After the entry burn it free falls for quite some time while braking immensely due to air resistance, gravity is there but has no chance. Only at a very low height it starts speeding up again and the boosters have to bring the speed to almost zero.

Air resistance varies with the square of velocity. So when we launch the object up the resistance will be high, specially at high speed. The resisteance will be lower when the object is starting to fall. And then we have the terminal velocity. Sum up, and the effect is even higher than tolde here.

So how much damage will that pin do when it comes to meaning from a pin spasm 1. Will it burn? Will it hurt Earth?

Thank you for your videos btw! ☺️

Actually Diana, if you wanna use the acceleration of gravity, instead of using *a* with arrow down, you can simply use *g*. It's universally known to be a vector pointing to the centre of mass, or in this case pointing downward.

Great video!

Nice! Home girl representing! :-) Great session Dianna!!

Wow! Dianna, I knew you were an impressive young woman, but throwing a bottle 45 meters into the air takes that to a whole new level. Also, great explanation.

youre an amazing teacher!

I love the bird at 8:20. :) That was very creative

Love the usage of how ridiculous' video!

When you really think about it, a particle is merely a kink in a zipper, a spot where there is one too many left clips per right clip. And an anti particle to this one is a kink in the zipper such that there is one too many right clips per left clip. And if somehow you were able to move these particles together, they vanish. Which likely means that the quark anti quark pairs that form in a vacuum are just kinks in the fabric of the universe.

Final exam. Last year at Lourdes Secondary school. Calculate the weight of a mouse running up a curtain. Love it physics lady.. xx

Same time, due to energy conservation. Think it like a swing or pendulum but without friction or any energy loss.

Would love to see the physics break down needed to explain free fall speed of demolished building and what is needed for it to reach its free fall speed maximum.

At 20:19, I would not expect any mass bearing particle to do anything except fall towards other mass bearing particles. Newton's laws seem pretty reliable in regions where there are heavy concentrations of mass bearing particles, like at the local level of solar a system, and even the inner portions of galaxies.