whooo i am ready to learn! You are the best physics teacher by far! even though I am out of high school (and college for that matter), I still watch these for fun. I took AP physics (when it was called physics honors in 2013) and it was really good. I have watched your videos since then and I know this series would have helped me as well as many others back then. I am really glad to have a resource like this now that i can share
yay to the gravity, i won noble for my research on 'gravity defying p**ing', i proved if someone raises his thing by hand he can vector stream at longer distances.
So glad Dianna explained the "Gravitational Field Trip" joke - totally missed it. TIP: Use the slow-motion video function on your phone (while recording event and a stopwatch) to accurately measure time from point to point. This error is likely far greater than the error due to neglecting the rope and pulleys.
I can't tell you how much these videos have helped! I am not a big fan of how my school teaches physics, but these videos really help me understand the concepts! FBDs make more sense, and they are amazing!
@20:23 "here's a map NASA made of anomalies around the planet." That's the gravity map for Mars, not Earth (as the context implied, by giving the range of gravity on Earth in the preceding sentence). Not trying to be pedantic. My first thought was: "what are those huge white peaks .. they make no sense". Then an image search taught me it was the Mars map (where those peaks do make sense).
Good catch. Your comment made me pause and stare at the map for a bit. You can clearly see lots of craters that I wouldn't expect to see on earth either.
Physics has always been my favorite subject and you sure make it fun. Find myself going through your lectures and would recommend them to any young physics student.
Nice course. Took my physics many years ago. On our gravity field trip to measure gravity across a salt dome, all students got to take a reading on the gravimeter. On my turn, I couldn't get it to center. Whenever I got close, it would fall off one way, then the other. I finally told the prof I was having problems. He had me try some more, with no better results, so he finally tried himself. After a few tries he stood up and looked around and pointed to a freight train off a few miles away. He said the train was setting up waves which was causing enough elevation changes to move the needle. He got me to center it the best I could so that it was going from one side to the other fairly evenly and took that as our reading. Next class involved punch cards to run models for our measurements for depth and size.
Our Physics Professor always gave us a zero mark if we don't draw free body diagram in our solution. 😥 This video help me a lot especially now that midterms is near. 💜
Hey physics girl. How did you measure the masses? The way a scale measures weight makes your calculation circular. I suggest a simple improvement. If instead of measuring the masses, you measure the ratio of the masses using a lever ( a seesaw with unequal arms) you can get rid of the absolute values of the masses.
what always found interesting about this is if you decide to pull m1 and m2 out and set them as a ratio, m1/m2 = (a+g)/(-a+g) you can set acceleration to anything as long as acceleration doesn't equal gravity. (this would force us to divide by 0) and this makes sense because if you have 2 masses hanging on either side of a pulley the falling one can never reach an acceleration of g. I was teaching this, this week and had never realized this before.
Love your braids! Forcing myself to learn physics soon. I majored in mathematics and teach it, but I've always been interested in pure, non-applied mathematics. My friend is a physics PhD student. I'm hoping my students will finally allow conversation in that realm, at least at a more elementary level.
Hi Physics Girl, You are absolutely Amazing, and a Great Teacher. The way you explain things sure makes it easier for us Non Physicists to understand. Plus your a Lot of Fun. I Love your outlook and enthusiasm for Science. Thank you for these Great Videos from Texas.👍👍❤️
Your classes are awesome. I loved them and also helps to refresh concepts and i loved to learn many other new concepts. The way you teach is awsome. Intersted in quantam physics and want you do do a ap phy class
I got the relationship between Newtons and kilogram force messed up in my head for a minute and thought that Dianna told us she weighed half a ton. Which did not sound right at all. I also learned that it would take ~8.42 seconds for the elevator on the Taipei 101 to reach its maximum velocity upwards assuming a constant acceleration of 2m/s/s from rest.
I love that you fan-girled about Bill Nye. I watched him a lot when I was younger. I can see it now: Did you enjoy watching Bill Nye the Science Guy? Well then you are gonna love Dianna Cowern, Physics Girl! I mean, I'd watch that show.
@@shamilamohammad1189 they why don't u do it then lol. If it was so advanced then IIT would have been top institutions in world it come near 200-300 lol
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.🙏
Just noticed this post. Really wish you had published this back in '72 when I was getting my start in physics. Profs made us pay for all our diagrams - they were absolutely not free.
As a third-year undergraduate physics student, I have no need to watch these videos, but I do because they're just that great. Always need to work on fundamentals too :) Just a tip: Label your axes. It will really help on clarifying what's supposed to be negative and not.
I've been watching your videos for a long time now. I have a Physics degree as well and when I think about the way I was thought these concepts and the way you teach them here, I feel like I need to go back to school and learn everything again from scratch, but this time with your methods. Your enthusiasm in teaching is so inspirational! Thank you for awesome videos!
I’m curious why you don’t call the scale’s force on the person “normal force”. Still works just fine for the FBD. And for clarity, I teach my students that “scales measure normal force, not weight”. Weight doesn’t change in an elevator, but the normal force does. Thanks for another great video!
Hi Diana, thanks for your videos, I passed my first (very basic) chemistry assignment, I left a few questions on other videos, don't know if you saw them :). on to the physics
@14:55 - You should have mentioned the tension point first, that the tension across the rope is same (because rope is not compressed or stretched and friction from pulley is negligible) and as a result of the tension being the same, the accelerations of the two weights are the same. Cause and effect.
Did I miss something? Did she explain what she did to the egg? We saw two clips from inside. Did we see the clip from outside? Did she simply drop it? It looked like it had some spin.
On a ship at sea, if you are in heavy seas, going up and down ladders is an experience. If you're headed up the ladder and the ship is riding up a wave, you feel REALLY heavy; but if the ship is riding down the wave, you feel light and can climb the ladder in a flash. (Ladder is a naval term for stairs, but the ladders on a ship are steep, like a ladder against your house.)
I sort of noticed that you were almost "singing" some of the equations...and then I noticed that with many of the variables "rhyming" that singing them really worked. 😁 I wonder if anyone puts out "mathematical music" now. 🎶 But, great lesson as always. I keep reposting them, largely hoping that my nieces that are being homeschooled will get to see them. 🖖☺️
DIA + ANNA -> DIANNA = PHYSICS ♡ HENCE PROVED ☆ Dianna you are the best and Cutest physics teacher I have ever seen in my life. And really she makes Physics like a Charm and makes it easy. Keep Going with the same Spirit and Charm. THANK YOU PHYSICS GIRL DIANNA.
Hi have u considered using super slow motion to find g? Many smartphones have this function. Put a high stopwatch and drop a very small heavy mass over a height of 2 to 3m. Find the time using super slow motion. Managed to do it with my students.
What if gravity actually is the *strongest* force of all (or at least stronger than the other 3 we are able to perceive) but it's influence is attenuated through manifold dimensions?
I remember having just learned about FBDs and watching “The Six Million Dollar Man” with some of my class mates. The FBD analysis tended to always show that he could not tear the top off of the tank because Lee Majors would just tip over because of unbalanced forces. We would then laugh uncontrollably. No one likes to watch TV with a bunch of engineers.
All these desperate people trying to comment within minutes of the video being uploaded, get a life people. Its a 23 minute video, uploaded some ten minutes ago and there are people claiming great vid, great teacher.
I love your enthusiasm (I was going to say energy, but couldn’t bring myself to :-) I’m a science educator and am super intrigued by your human Atwood machine. Is it feasible for someone with minimal funds and little construction knowledge to build one? Me. I’m talking about me. Thanks again!!!
Rotational inertia of pullies also affects this demonstration. The ones on your contraption look pretty small and lightweight though so doubt that has much of an effect here.
So if you really get these free body diagrams, and you enjoy working then out and thinking about them.... consider going into engineering. Specifically Mechanical Engineering and all of the related- Civil, aero, etc. Where bodies are either made to not move or made to move in a specific way. Free Body Diagrams is the beginning core of doing mechanical related engineering- starting with Statics (things that don't move) and Dynamics (things that move). Which then gets expanded into adding all of the forces to calculate what it takes to keep a building standing, how to make an airplane fly, how to make a suspension for your car, how to make a bike, etc.
Maybe a video on free body diagrams explaining why going faster for big vertical drops helps with the impact of landing in extreme sports and why landing ramps also help. Could address why no one should've ever tried the infamous "Leap of Faith" (18'8" drop) by comparing Jamie Thomas' initial velocity to that of when Aaron "Jaws" Homoki landed the Lyon 25 stair(14'9" drop) would be interesting. Warning the Jamie Thomas Leap of Faith video is graphic and other attempts are worse.
Just a thought, if it all goes awry with the physics business? Seriously contemplate a career as stand up comedian. You've got a knack for it. Your undertoned play on word jokes get me ALL the time.
Imagine having a physics teacher like Dianna growing up. We'd all be physicists.
I feel like she is my age. She is more like the nerdy girl I would've had a crush on lol
Yeah, my classmates and I in graduate school (mid '80s) would say if we'd wanted to meet women, we'd have joined the Army.
@@FlyingSavannahs still true today my friend lol
Math QUESTION
Algebra question
th-cam.com/video/KnH1V3lVfRY/w-d-xo.html
One time watchble
It would have been hard to Concentrate if She was my Teacher.😁
whooo i am ready to learn! You are the best physics teacher by far!
even though I am out of high school (and college for that matter), I still watch these for fun. I took AP physics (when it was called physics honors in 2013) and it was really good. I have watched your videos since then and I know this series would have helped me as well as many others back then. I am really glad to have a resource like this now that i can share
Math QUESTION
Algebra question
th-cam.com/video/KnH1V3lVfRY/w-d-xo.html
One time watchble.
Yay Electromagnetic Force! Now back to gravity...
Hi Mehdi
yay to the gravity, i won noble for my research on 'gravity defying p**ing', i proved if someone raises his thing by hand he can vector stream at longer distances.
Yay King is here
Math QUESTION
Algebra question
th-cam.com/video/KnH1V3lVfRY/w-d-xo.html
One time watchble
ElectroBOOM
Meow meow
You r one of my favorite teacher of all time 👊🏻
So glad Dianna explained the "Gravitational Field Trip" joke - totally missed it.
TIP: Use the slow-motion video function on your phone (while recording event and a stopwatch) to accurately measure time from point to point. This error is likely far greater than the error due to neglecting the rope and pulleys.
I can't tell you how much these videos have helped! I am not a big fan of how my school teaches physics, but these videos really help me understand the concepts! FBDs make more sense, and they are amazing!
@20:23 "here's a map NASA made of anomalies around the planet."
That's the gravity map for Mars, not Earth (as the context implied, by giving the range of gravity on Earth in the preceding sentence).
Not trying to be pedantic. My first thought was: "what are those huge white peaks .. they make no sense".
Then an image search taught me it was the Mars map (where those peaks do make sense).
Yea, those white peaks threw me for a loop too. Just didn't look right. Luckily this is a physics channel and not inter-planetary geography channel.
Good catch. Your comment made me pause and stare at the map for a bit. You can clearly see lots of craters that I wouldn't expect to see on earth either.
Oooo didn't catch that.
www.smithsonianmag.com/science-nature/a-map-of-earths-gravity-30976030/
Here's one of the earth too, for those wondering :)
I noticed them too. That map looked weird for Earth. But than I noticed Valles Marineris, that canyon a little bit to the right.
Math QUESTION
Algebra question
th-cam.com/video/KnH1V3lVfRY/w-d-xo.html
One time watchble.
"I am just a child who has never grown up. I still keep asking these 'how' and 'why' questions. Occasionally, I find an answer."
― Stephen Hawking
You comment on every dhruv rathee's video!! how come you are every where?
Imagine if we all did this.
So cool!
Physics has always been my favorite subject and you sure make it fun. Find myself going through your lectures and would recommend them to any young physics student.
Nice course. Took my physics many years ago. On our gravity field trip to measure gravity across a salt dome, all students got to take a reading on the gravimeter. On my turn, I couldn't get it to center. Whenever I got close, it would fall off one way, then the other. I finally told the prof I was having problems. He had me try some more, with no better results, so he finally tried himself. After a few tries he stood up and looked around and pointed to a freight train off a few miles away. He said the train was setting up waves which was causing enough elevation changes to move the needle. He got me to center it the best I could so that it was going from one side to the other fairly evenly and took that as our reading.
Next class involved punch cards to run models for our measurements for depth and size.
Was this for college?.
Because you just made a gravmetric survey look like a very fun high school trip
Lalo Tapia it was in college in a geophysical field trip.
I am from a country called sri lanka,in 15 more days I have to face an exam similar to AP physics,so thanks for these videos!!!!
@Yash Paul Sharma thanks
good luck bro
Good luck on your exams!
I came in here looking to get a body diagram for free, but this is cool, too.
Yep.
Lol
I think the stick figures qualify.
Math QUESTION
Algebra question
th-cam.com/video/KnH1V3lVfRY/w-d-xo.html
One time watchble
same here
I just love these explanations
It is much simpler and more concept clearing just love it!!!!!!
Really helpful, Please keep making content like this!! Really looking forward for more!!
I missed a few videos so probably late BUT OMG THAT BACKGROUND IS AMAZING!!
Our Physics Professor always gave us a zero mark if we don't draw free body diagram in our solution. 😥 This video help me a lot especially now that midterms is near. 💜
Hey physics girl. How did you measure the masses? The way a scale measures weight makes your calculation circular. I suggest a simple improvement. If instead of measuring the masses, you measure the ratio of the masses using a lever ( a seesaw with unequal arms) you can get rid of the absolute values of the masses.
I still have literally no idea how any of it works but I really enjoy trying to understand it, thank you Dianna for another great lesson 😊
I watch your Physics 101 videos to take a break from my engineering classes. Thank you!
what always found interesting about this is if you decide to pull m1 and m2 out and set them as a ratio, m1/m2 = (a+g)/(-a+g) you can set acceleration to anything as long as acceleration doesn't equal gravity. (this would force us to divide by 0) and this makes sense because if you have 2 masses hanging on either side of a pulley the falling one can never reach an acceleration of g. I was teaching this, this week and had never realized this before.
Love your braids! Forcing myself to learn physics soon. I majored in mathematics and teach it, but I've always been interested in pure, non-applied mathematics. My friend is a physics PhD student. I'm hoping my students will finally allow conversation in that realm, at least at a more elementary level.
Hi Physics Girl, You are absolutely Amazing, and a Great Teacher. The way you explain things sure makes it easier for us Non Physicists to understand. Plus your a Lot of Fun. I Love your outlook and enthusiasm for Science. Thank you for these Great Videos from Texas.👍👍❤️
I only wake up to your lectures. I have reconfigered my alarm clock to your notifications and then resume my hibernation. It’s all an amazing dream.
Most useful thing I ever learned. Work those problems till its second nature and you won't regret it.
Your classes are awesome. I loved them and also helps to refresh concepts and i loved to learn many other new concepts. The way you teach is awsome.
Intersted in quantam physics and want you do do a ap phy class
Due to this channel I got 50 / 50 in a physics test in my school.
HATS OFF TO DIANNA. ❤
👌👌👌👌👌👌👌👌👌👌👌👌
& the 69th like is by my 😐
ANIMESH PANDA I’m using this to maybe get a little better on my test in 20 min 😂
@@evelynbrylow3624 😂😂 👍👍
I got the relationship between Newtons and kilogram force messed up in my head for a minute and thought that Dianna told us she weighed half a ton. Which did not sound right at all.
I also learned that it would take ~8.42 seconds for the elevator on the Taipei 101 to reach its maximum velocity upwards assuming a constant acceleration of 2m/s/s from rest.
The thing which i like the most is your explanation and your great smile 😉😉
I love that you fan-girled about Bill Nye.
I watched him a lot when I was younger.
I can see it now:
Did you enjoy watching Bill Nye the Science Guy? Well then you are gonna love Dianna Cowern, Physics Girl!
I mean, I'd watch that show.
Love the new channel focus!
I'd opt engineering if saw her before I took pre-med entrance ❤️😅
Were you giving NEET while doing photoshoot of your profile pic??
@@beactivebehappy9894 😂😂🤭
Math QUESTION
Algebra question
th-cam.com/video/KnH1V3lVfRY/w-d-xo.html
One time watchble.
Why engineering and not physics
Dianna: We're gonna neglect the mass of the rope.
Rope: :(
:))
When did you find interest in 11th and 12th grade physics
btw will you try JEE MAINS questions
please try to solve
pleasssseee
Haha! Indian education system is so advanced u know. These are the topics which they're taught in their college🙈
@@shamilamohammad1189 ya but she have good concept so she might find it quite interesting 😏
I guess so.
I hope she will.🙂
@@shamilamohammad1189 despite of that india cannot produce single Nobel winning scientist in recent years and even some great engineering minds
@@himanshurai2014 ya sad reality! Our generation wants to go abroad and work for them :(
@@shamilamohammad1189 they why don't u do it then lol. If it was so advanced then IIT would have been top institutions in world it come near 200-300 lol
Excellent video.
I can't get over how good your handwriting is.
I truly love u and ur videos 📹
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.🙏
Wow! Reading the credits makes me realize that it took a lot of people to make this video. Food for thought.
I m so fascinated by you....and acquire more and more knowledge I can..from your videos..really love it🤩🥰🥰
Brings back memories, not all enjoyable. Lol. Love your quirky sense of humor. 😁
Just noticed this post. Really wish you had published this back in '72 when I was getting my start in physics. Profs made us pay for all our diagrams - they were absolutely not free.
I love the cows :) May you please tell me where you got them? Thanks! :)
As a third-year undergraduate physics student, I have no need to watch these videos, but I do because they're just that great. Always need to work on fundamentals too :)
Just a tip: Label your axes. It will really help on clarifying what's supposed to be negative and not.
I've been watching your videos for a long time now. I have a Physics degree as well and when I think about the way I was thought these concepts and the way you teach them here, I feel like I need to go back to school and learn everything again from scratch, but this time with your methods. Your enthusiasm in teaching is so inspirational! Thank you for awesome videos!
1:06 Most jokes aren't funny, if you have to explain them, but that one got me laughing.
I’m curious why you don’t call the scale’s force on the person “normal force”. Still works just fine for the FBD.
And for clarity, I teach my students that “scales measure normal force, not weight”. Weight doesn’t change in an elevator, but the normal force does.
Thanks for another great video!
I teach this too. Normal force for sure. Fg does not change.
I got it! We're ALWAYS on a gravity field trip, because we're always in the Earth's gravity field! I giggled! Well done!
SPENSER REICH you are a genius! Awesome video editing! Those cow sound effects... man! I almost died laughing 😹🐄
"G"..... I love this channel I learn so much
Man I used to feel so good solving problems related to free body diagram . Physics is my favourite subject
Hi Diana, thanks for your videos, I passed my first (very basic) chemistry assignment, I left a few questions on other videos, don't know if you saw them :). on to the physics
Hey...please tell me why we taken it's velocity constant while falling down...??
Please
At 4:50
What...
A cow launched in projectile motion
I imagined and LOL 😆😂🤣
@14:55 - You should have mentioned the tension point first, that the tension across the rope is same (because rope is not compressed or stretched and friction from pulley is negligible) and as a result of the tension being the same, the accelerations of the two weights are the same.
Cause and effect.
Our Physics teacher in HS was boring when she taught this..fell asleep a couple of times..this is clearer..
17:03 "and we'll just combine them somehow...erm...😶" we've all been there ^>^
Did I miss something? Did she explain what she did to the egg? We saw two clips from inside. Did we see the clip from outside? Did she simply drop it? It looked like it had some spin.
On a ship at sea, if you are in heavy seas, going up and down ladders is an experience. If you're headed up the ladder and the ship is riding up a wave, you feel REALLY heavy; but if the ship is riding down the wave, you feel light and can climb the ladder in a flash. (Ladder is a naval term for stairs, but the ladders on a ship are steep, like a ladder against your house.)
at 4:33 would there be a force normal, since I was learning forces at school I had that question
5:37
Was that a Pilotwings 64 noise?
Cool working and good luck
Very awesome Diana!
I sort of noticed that you were almost "singing" some of the equations...and then I noticed that with many of the variables "rhyming" that singing them really worked. 😁 I wonder if anyone puts out "mathematical music" now. 🎶
But, great lesson as always. I keep reposting them, largely hoping that my nieces that are being homeschooled will get to see them. 🖖☺️
Her handwriting is amazing!
This video swole my physics knowledge. TY Dianna!! :D
And I love Bill Nye too!
DIA + ANNA -> DIANNA = PHYSICS ♡ HENCE PROVED ☆
Dianna you are the best and Cutest physics teacher I have ever seen in my life. And really she makes Physics like a Charm and makes it easy. Keep Going with the same Spirit and Charm. THANK YOU PHYSICS GIRL DIANNA.
To simulate earth’s gravity on a plane, simply stay at the tarmac. 😉 (8:32)
Very amazing, thank you Dianna
Hi have u considered using super slow motion to find g? Many smartphones have this function. Put a high stopwatch and drop a very small heavy mass over a height of 2 to 3m. Find the time using super slow motion. Managed to do it with my students.
2:06
"Is Gravity the strongest force?"
*STRONG* nuclear force:
"Am I a joke to you?"
I feel more smart now.
Thanks Physics Girl!
I kept thinking my toaster oven was done cooking everytime I heard a ring😅
Best physics teacher ever
I LOVE PHYSICS!!!!!!! ITS MY FAVORITE THING!!!
How are You? Hopping your doing well!
So to loose weight immediately is just to keep falling
I didn´t know about this way of measuring G, iTs fantastic!. I read about Galileo using inclined planes to slow down the `fall` od some balls.
Must be so humbling to have Bill Nye in one of your videos! Thank you so much for uploading these lessons!
Could you start putting the episode / lesson numbers in the video titles please.
What if gravity actually is the *strongest* force of all (or at least stronger than the other 3 we are able to perceive) but it's influence is attenuated through manifold dimensions?
Will you be doing work and energy and thermal physics soon thats what my next test is on?
Electroboom got me here. Not disappointed, very good content!
Thank you so much.✨
What is Fs at 8:10 (is it normal force?)
I remember having just learned about FBDs and watching “The Six Million Dollar Man” with some of my class mates. The FBD analysis tended to always show that he could not tear the top off of the tank because Lee Majors would just tip over because of unbalanced forces. We would then laugh uncontrollably. No one likes to watch TV with a bunch of engineers.
Another great one in the bag
Hi Dianna i really enjoying this course. i would like to place a course suggestion on Quantum physics.
All these desperate people trying to comment within minutes of the video being uploaded, get a life people. Its a 23 minute video, uploaded some ten minutes ago and there are people claiming great vid, great teacher.
Where was this when I was in high school?
I love your enthusiasm (I was going to say energy, but couldn’t bring myself to :-) I’m a science educator and am super intrigued by your human Atwood machine. Is it feasible for someone with minimal funds and little construction knowledge to build one? Me. I’m talking about me. Thanks again!!!
Rotational inertia of pullies also affects this demonstration. The ones on your contraption look pretty small and lightweight though so doubt that has much of an effect here.
amazing lesson !
So if you really get these free body diagrams, and you enjoy working then out and thinking about them.... consider going into engineering. Specifically Mechanical Engineering and all of the related- Civil, aero, etc. Where bodies are either made to not move or made to move in a specific way. Free Body Diagrams is the beginning core of doing mechanical related engineering- starting with Statics (things that don't move) and Dynamics (things that move). Which then gets expanded into adding all of the forces to calculate what it takes to keep a building standing, how to make an airplane fly, how to make a suspension for your car, how to make a bike, etc.
I find all this quite complex, but i understand it better well explained as you do; thanks.
What's the Mechanical Ground Symbol called, I have one on a roof for a hanging chain, I can't find the name of it anywhere.
I've a doubt. I often get puzzled by how big g (G) - gravitational constant was discovered. Can you clarify it.
Maybe a video on free body diagrams explaining why going faster for big vertical drops helps with the impact of landing in extreme sports and why landing ramps also help. Could address why no one should've ever tried the infamous "Leap of Faith" (18'8" drop) by comparing Jamie Thomas' initial velocity to that of when Aaron "Jaws" Homoki landed the Lyon 25 stair(14'9" drop) would be interesting. Warning the Jamie Thomas Leap of Faith video is graphic and other attempts are worse.
That NASA map missed the gravitational anomaly at my doctors office. She's always telling me to lose weight, when I know I'm fine...
Please do a video on sound waves
Just a thought, if it all goes awry with the physics business? Seriously contemplate a career as stand up comedian. You've got a knack for it. Your undertoned play on word jokes get me ALL the time.
I'm here for Diana :)