We made quiz questions to help you review the content in this episode! Find them on the free Crash Course App! Download it here for Apple Devices: apple.co/3d4eyZo Download it here for Android Devices: bit.ly/3TW06aP

A student in bed will remain in bed until acted upon by a large enough panic : The lesser known Newton's 4th Law.

@liawxinyan

8 жыл бұрын

HAHAHA a sense of urgency.

@tanyay1073

8 жыл бұрын

+LelWut Urgency or a nagging mom 😂

@ShamWerks

8 жыл бұрын

+Kamal Bhamra Happy the Student he who like river, can follow his course without leaving his bed.

@adrianbornabasic7499

8 жыл бұрын

+Kamal Bhamra lmao

@ASOUE

8 жыл бұрын

+Kamal Bhamra I always remind my professors about that one when they mention Newton's laws.

When your physics final is tomorrow and you tryna learn everything the night before... 😂😂😂

@sophiavega8514

5 жыл бұрын

Or the morning of lol

@alanah7300

5 жыл бұрын

Thats me bro tbh

@hamidalrawi2204

5 жыл бұрын

so how did you do? I hope good !!

@lynnegharib2548

5 жыл бұрын

Vika S omg thats me rn wth

@mikayla7006

5 жыл бұрын

Vika S sameeee!!!

"Now the normal force isn't like most other forces. It's special." so much for normal.

@billy-mild

7 жыл бұрын

+

@tfos993

7 жыл бұрын

Amy Samuels Poor normal force always being ignored at surface..

@frankdayton731

7 жыл бұрын

Normaw*

@shaleygerman6001

7 жыл бұрын

"I'm not like other forces"

@Bobelponge123

6 жыл бұрын

ShaleyGerman "I'm... Normal"

My favorite explanation of Newtons laws comes from my high school Physics teacher: 1.) Stuff is hard to shake 2.) More stuff is harder to shake 3.) Stuff pushes back

@Bloxicorn

5 жыл бұрын

My science teacher's explanation,(or at least I think she said this I was kinda asleep): 1.) IYUGVLJGY{YGYV:Gljewdnjqv 2.) prgwd9f3edwgytyftewdhhhhhhhhhhhhhhhhhhhhhhhgy 3.) Get out of my friggin classroom

@daveforfav7650

5 жыл бұрын

@@Bloxicorn What ur teacher was probably saying 1 (explain things ) 2 sees u sleeping says get up Mr or u getting out of my classroom 3 kicks u out

@Bloxicorn

5 жыл бұрын

I'm a better man 5 months later. I do not sleep. At all.

@jerryscanas

4 жыл бұрын

@@Bloxicorn My science teachers explaination 1.) Your 2.) Mom 3.) Gay

@swarnalatha5242

4 жыл бұрын

You are high school and you are learning this now?

"There will be no Christmas without physics" *Reindeer flies with sleigh* (Defies physics)

@shivannapv4262

4 жыл бұрын

The the universe cannot be as we know it without Physics.

Newton slaps top of car. Car slaps newton back. Equal and opposite force!

@michelecole4493

5 жыл бұрын

It would also be an unbalanced force

@sniperammow4865

5 жыл бұрын

Isabella Fetter wait what? Ohh I remember!

@ddharsh2548

5 жыл бұрын

I don't think there were cars back then

@FlyLeah

5 жыл бұрын

If there wasnt a opposite force the hand would go trough the car:) The pain and sudden stop is feeling of the opposite force

@orie315

4 жыл бұрын

@@ddharsh2548 it was a joke. You just got wooooshed

Newton's Laws of Motion: 0:53 - First Law (Inertia): "An object in motion will remain in motion, and an object at rest will remain at rest, unless acted upon by a force." 1:37 - Second Law (Fn = ma): "Net force is equal to mass times acceleration." 3:40 - Third Law (Equilibrium): "For every action, there is an equal but opposite reaction." 4:52 - Further explanation on Normal Force and Tension Force

Stop scrolling through the comments and actually listen to the dang video

@FenrirWolfe1

7 жыл бұрын

I actually know all this stuff... Why am I here again? KZread, everybody. KZread....

@jogama1059

7 жыл бұрын

lol right? this is all common sense if you like legos.

@mariyanfernanado9660

7 жыл бұрын

hiiii darling

@0egg0

7 жыл бұрын

Josh G no.

@maximilianmaximus3639

7 жыл бұрын

caught me

The arrangement of the Rubik's Cube in this episode is still exactly identical to its arrangement from last episode. Unfortunately, this means that no one is even trying to work on it in between episodes. This just isn't right. Whenever you see an unsolved Rubik's Cube sitting around, fixing it should always be a top priority.

@Raylock

8 жыл бұрын

it's not that hard to solve a Rubik's cube and solvers generally like the unsolved version better than the solved position

@feitocomfruta

8 жыл бұрын

+Pokemonix Aditya The need for order being outweighed by the need for novelty.

@Raylock

8 жыл бұрын

feitocomfruta well Tetris players I cannot help but neglect the cube as it's perfect in its own way perfection is non existing word after all

@samaykumar6059

6 жыл бұрын

I disagree. I always have 2 cubes lying on my desk and if I ever find them unsolved, I rush to it. Can't stand it being scrambled.

@jessetorres4319

6 жыл бұрын

Its probably only their for decoration LOL!

I can tell im going to watch this video at least 3 more times

@cameronpaul9183

7 жыл бұрын

No

@b_08_amitkumarsahu90

7 жыл бұрын

Aaron Gould me too

@hitormisshuh

6 жыл бұрын

Same

@LearnersNation

5 жыл бұрын

Nice

@samdoesstuff4924

5 жыл бұрын

lol ikr my brain can't retain facts for more than 3 seconds

"Suppose you threw a 5kg ball up in the air, and then, you know, got out of the way because that could really hurt if it hits you." This is easier to understand than I thought it would be.

I cant focus on the video because of my habit reading the comments while watching😂

I have this weird habit where I like to watch all these education physics videos after a physic exam....why....

@Jazlynify

7 жыл бұрын

hahaha I do that too

@shravannani4704

7 жыл бұрын

+Jazlyn Natalie I do

@jake_runs_the_world

7 жыл бұрын

Hahahha yeah XD

@falsehoodbasher7240

7 жыл бұрын

to know what u'r missing?

@cameronpaul9183

7 жыл бұрын

haha me too bro

I was getting it until the elevator thing ...

@mr.klunee4103

5 жыл бұрын

This really is not a good video for beginners; it moves too quickly to teach anything. For someone like me just watching for fun, sure. But not useful for trying to learn the information. Also the elevator graphic uses colors that make it hard to see the different arrows and stuff they add to it.

@ngocminhhan4482

4 жыл бұрын

omg same that's why i'm scrolling down here

@swarnalatha5242

4 жыл бұрын

Its basiclly a concept with which you can tell how much your weight will be on the weighing machine,based off of lifts acceleration and direction i know its a long time but hope it helps :)

@Sinnbad21

4 жыл бұрын

SWARNA LATHA What always confuses me is that if it takes 15 Newton’s of force to lift an object off the table, how would I actually be able to lift it if the law states that it’s pulling back down with the same force? Wouldn’t it just cancel each other out?

@swarnalatha5242

4 жыл бұрын

@@Sinnbad21 thats where u r getting it wrong. The newtons 3rd law is applivable only for push not for pull.

these crash course people are great teachers! much better than the ones in my personal experiences at least...

@DrSardonicus

8 жыл бұрын

That is so tragic. It's such a shame that countless children are left behind or develop a negative association with learning simply because a bad or incapable teacher. :'(

@user-wm6hu5nj6m

7 жыл бұрын

Apatheism so true

@auroraautumn8764

6 жыл бұрын

They don't have to teach behavior, why won't they be better. Try being a teacher for a day in your life and you will have a different perspective. I love teaching my content but I can't teach it fun when a bunch of kids are talking, arguing with each other or getting out of their seats which erupts in laughter. Once behavior is taught teaching becomes easier.

@LearnersNation

5 жыл бұрын

Yeah that's true, but did you understood everything she taught or may you just liked the video presentation? And understood much lesser than compared to real one.

@lukast2784

5 жыл бұрын

regular teachers can be trash...

I've gotta say, after watching this series so far, I'm happy they have Dr Somara as the host. Her voice is nice to listen to, and her delivery of the material is engaging. I had to study basic wavelength physics in college for part of my Speech Pathology degree, and I found the course to be a bit dull. I wonder how it will be if and when they discuss it here.

5:01 just completely clarifies my confusions in physics after 5 years.

@omkarchavan5940

8 жыл бұрын

👍

@ASOUE

8 жыл бұрын

+yrjosmiel73 SOOO True, I always wondered why we could move things if everything applies the same amount of force back.

@DrSardonicus

8 жыл бұрын

Really? Five years and all you needed was someone to finger a table?

@lunacryst2110

8 жыл бұрын

+yrjosmiel73 OHHHHHHHHHHHHHHHHHHHH!!!!!

@joelchalla9603

8 жыл бұрын

She's hot

"And for that we're gonna turn to a physicist you've probably heard of" Me: BILL NYE THE SCIE....Oh.

@lumeme9352

4 жыл бұрын

@Merwin D'Souza I'M CALLING THE FBI PREPARE TO HAVE YOUR VODKA TAKEN!

@GlamourCat1920

4 жыл бұрын

SCIENCE RULES!

My physics final is tomorrow. Wish me luck, I'm going to need it lmao

I love her accent, not gonna lie. Especially how she says equilibrium :3

@DrGrape-px7se

6 жыл бұрын

Same

@adityamunimala4885

5 жыл бұрын

And she is an Indian

@lukast2784

5 жыл бұрын

uhhhhhhhhhhh

@DonnyvanGoBlueYT

5 жыл бұрын

BRA!!!!!!

@happyhuman8549

4 жыл бұрын

@@adityamunimala4885 xd australian nationality

1:25, I know this is a serious topic, but I just found it funny.

Sir Isaac Newton: For every action, there is an equal opposite reaction Hamilton fans: *screams in 13 different languages*

@satuispunk

4 жыл бұрын

Thanks to Hamilton our cabinet's fractured into factions..... Hehehehe

when corona makes you watch these videos.

@yungsmile7546

4 жыл бұрын

bruh?

@aidenschwerdtfeger6104

4 жыл бұрын

Funny thing is that I’m actually here for a class during quarantine so you’re not wrong

@jasonvelasco90

4 жыл бұрын

​@@aidenschwerdtfeger6104 ditto

@Deneirioo

4 жыл бұрын

People just want to bring up Corona to bad cus it another way to get alot of likes

@badtime6096

4 жыл бұрын

@@Deneirioo that's pretty cool my guy!

I've learned more in this video than in my physics class all year.

British accents give me joy whenever I hear them, bless the British.

@frankschneider6156

8 жыл бұрын

+lightsier Ever experienced Cockney ?

@edwardmcdonagh7309

8 жыл бұрын

+Frank Schneider or scouse

@frankschneider6156

8 жыл бұрын

Edward McDOnagh equally bad ... I'm not even sure if what those natives are talking really qualifies as a language or if it is not rather a combination of grunt louds.

@edwardmcdonagh7309

8 жыл бұрын

Loud, strangely high pitched grunts

@frankschneider6156

8 жыл бұрын

Edward McDOnagh Are they also wearing bones in their nose ?

The thought bubble about the hockey rink wasn't timed well. It showed constant motion when Shini was talking about acceleration, and stopped the puck when Shini was talking about equilibrium. This might really confuse people who are learning this for the first time.

@spyrootur2013

5 жыл бұрын

FirstRisingSouI oh wait wat

Have a physics midterm tomorrow. Hopefully these help

@dannydevito560

7 жыл бұрын

same

@sniperammow4865

5 жыл бұрын

Matt DeWolfe I have physics nest semester, just practicing.

@francis2339

4 жыл бұрын

How did it go guys?

@CrashCourse I'm loving the Physics course and they are helping me so much. You teach better than in the school I was. I'm watching many times to get every point. Thank you for sharing these knowledges with us.

@swarnalatha5242

4 жыл бұрын

Sis what she is teaching is 6th grade stuff and if you are watching it again to get every point i am sorry you are just dumb

Her:no Christmas without physics Santa: are you sure about that

5:52 The teacher says: There would be no Christmas without physics. Me: Why he doesn't put a flying reindeer?

How is it that I learn more in the night before a test from a woman I don't personally know than I do from my teacher! Thank you everybody at Crash Course!

Eeeeeh, I have an issue with how you describe the reason that the action and reaction forces don't cancel out. It is less about the difference between the sleigh vs the force on the ground and more about the fact that the forces are acting on different objects. Consider an astronaut pushing another astronaut in the depth of space. Each astronaut experiences an equal and opposite force, and there are NO OTHER FORCES acting on them, yet they still accelerate. Why? Because while the forces are equal and opposite, they are acting on _different objects_. You can pick up the mug, in spite of the equal and opposite reaction force, because the reaction force isn't acting on the same object. If force 1 is on object A, and force 2 is on object B, the fact that they're equal and opposite is irrelevant. They can't cancel if they're acting on different objects. The action force is object A acting on object B, the reaction is object B acting on object A. Each of these forces is free to induce acceleration on their respective objects.

@Iffyish

7 жыл бұрын

Jason Heavensrun thank you very much for the explanation

@supreetsingh987

5 жыл бұрын

I don't see how what she said contradicts what she said given that she specified what object each force was acting on. And why would anyone think 2 separate forces acting on 2 objects would effect each other.

@burlofreak

5 жыл бұрын

that's exactly what she said, except you sound stupid.

@wareeshanadeem3940

4 жыл бұрын

Ur words aren't even over in the keypad lady you type so much

@qtMure

4 жыл бұрын

Jason Heavensrun thanks for the answers to my physics quiz XD

Thank you for taking the time to make these videos. I'm having a terrible time with my current professor and this has already helped! Godspeed!

This is wonderful! I was waiting for this for such a long time.. Could you do some videos about electronics and stuff like that? Keep up the good work!

Newton's 4th Law of Motion - "A Rubik's cube at unsolved position will continue to be in unsolved position unless it is acted upon by a external effort to change its state of being."

One does not simply "Throw" a 5kg bowling ball...

Most interesting video so far. It's nice to see the notions/concepts build up piece by piece. Still, so many ways to describe the same "event" and it's all down to mathematics.

The quality of your videos are amazing, and also interesting! Thank you.

Thanks for the upload! I'd like to see more of Shini, her accent is wonderful to listen to, she has a beautiful smile and she holds attention well

This video cleared up a lot of things for me! Thank you for making this show!

special appearance:professor Feynman!!!

Thank you for posting this!! I have been studying to get into the Navy and I am on the Physical Science chapter. I have a better understanding by watching things in motion and film, and this video has helped a lot!!! :)

love these vids, helping me through college one at a time! thanks for all that you folk at crash course do!

I skipped a huge part of my math book that talked about this stuff. when finals came i had to learn EVERYTHING in one night. this video helped a lot much love.

@swarnalatha5242

4 жыл бұрын

So you are saying ur exam was soo trash that a 10 min video could ans everything?

@gomeezzzzz5213

4 жыл бұрын

@@swarnalatha5242 yes thats exactly what im saying. and also this video explains it fast and detailed enough

@trendteaser9333

4 жыл бұрын

Why would you skip so much

@gomeezzzzz5213

4 жыл бұрын

@@trendteaser9333 we get too choose what to study first. i skipped the first lesson which was newtons law and kinda forgot about it

@trendteaser9333

4 жыл бұрын

@@gomeezzzzz5213 doesn't the teacher tell everyone the same lesson?

You guys are amazing! Everything here is so helpful and fun XD You actually made me want to learn. Thank you very, very much!

Well I was like, "Let me watch some easy physics to procrastinate for this physics exam today". Then I realized how much basic physics I've forgotten... Well now I know why people hate physics so much...

"F"ull = "M"etal "A"lchemist

@cheroberts8958

6 жыл бұрын

no

@jasonstarrising

4 жыл бұрын

:9

Thanks for being a grade teacher. My irl teacher can’t teach.

@anitabhandary2902

Жыл бұрын

I am in 6th grade btw 😊

Hey Shini! I'm having my physics exam tomorrow and these videos really help! Keep going! 😊

"There will be no Christmas, without Physics "😄

G in Olevels = 10m/s G in ALEVELs = 9.81 m/s

No Christmas without physics...I-

newtons 3rd law example: a gun fires, there is a recoil

Gosh i think I learn more in KZread than my teacher's stuffs thinks that she knows too much while she was fooling us around"LOVE U YOU TUBE TEACHERS"got to understand alot

I like how this is posted for me to revise for my physics test next week. Good timing!

I will never forget “Every action has an equal opposite reaction” thanks to Hamilton but at the same time i will never not sing that line.

Thank you for being such a great teacher I hope you keep on making greater videos

Remember the PBS show "Mechanical Universe" in the 70s? They also did the moving parts of the equation. But they had little starbursts when factors canceled each other out.

@gigijbijbj

8 жыл бұрын

80's*

@spaceinbetween6591

8 жыл бұрын

Thats such an obscure reference

@Alverant

8 жыл бұрын

+IAintGivinOutMyRealNameOn KZread Maybe, but it's this series's thematic ancestor. Early computer graphics and demonstrations. I loved it. This lecturer had this huge notebook and you could see the progress he made from beginning to end.

@rowandoescovers

4 жыл бұрын

glleg

Great video! I found i pretty helpful! Thanks!

this genuinely might be the only reason i pass physics, thankyou so so much!!

Crash Course Engineering Next !?!?!?

@ignacio560

6 жыл бұрын

Sam Duke Its happening!

@swarnalatha5242

4 жыл бұрын

Bruh this is all 6th grade stuff

At 1:23 I was dying of laughter 😂😭 I was watching this in class (everyone) and was the only one that was laughing .

thank you so much for making this wonderful video free!!

I think there is only only one law that is force is equal to mass times acceleration. Three laws are just manipulation of applied force.

when you have a science test tomorrow and forgot to study

@harimcbride5017

4 жыл бұрын

Legit me now

I'm in love with Shini!

Great video! Really helped

Thanks, this video greatly assisted me in studying for my physics exam!

There would be no christmas without physics. *Holds up a finger* ... *Slowly pulls it back*

These videos are pretty helpful so far, but the timing was honestly bad, you guys should've started earlier since that the AP Physics exam will be next week.

@JoshuaChowabc

8 жыл бұрын

+Dina K. Because of weird American laws, I think taxes influence when seasons on CrashCourse starts and ends

@plaiedesct

8 жыл бұрын

+Dina K. You're in serious trouble if u use crash course as ur study guide.

@JoshuaBorrow

8 жыл бұрын

+Perseides Why? They often provide an interesting alternative approach that can help people with their understanding. The Astronomy crash course covered concepts last year up to end of undergrad level, just with less mathematics.

@DinaKubba

8 жыл бұрын

+Perseides It's definitely not the only resource that I would use for studying and AP course, but it would've been useful when I first started taking the course. I personally like to use simple videos to recap all topics.

@JohnnyYenn

8 жыл бұрын

I already had my mid term on first year mechanics. Would have been helpful like 2-3 months ago.

i love these ppl on this channel sm they give me hope in my school life

THANK YOU SO MUCH, I was making a need for a video of this subject.

8:32 isnt that Newton's Second law?

@cajuniky

8 жыл бұрын

Sure is, good catch

@cajuniky

8 жыл бұрын

+Science Power I didnt notice, because as I watch this, I start spacing out on memories from studying Engineering Haha 😄

@swarnalatha5242

4 жыл бұрын

@@cajuniky sis this is taught in 6th grade not in engineering atleast speak a beliveable lie

@cajuniky

4 жыл бұрын

@@swarnalatha5242Lol I never said this was only taught in Engineering. These are the basic laws of movement/force. And used to form equations in 3D space with vectors, with advanced calculus, in Static and Dynamic physics in Engineering. What I was saying was, when I see any basic physics, I always think back to these courses. And also Relativity and Quantum physics. Which I dont even think is mandatory to take anymore where Im from, for Civil Eng at the Uni I was at, but that was 12 years ago 🤷‍♀️.. Idk why u assume Im lying 🤦‍♀️

Okay, so Newton went and stopped a cow and got his first law: An object continues to be in a state of rest or motion unless acted upon. Then he gave the cow a little bit of force and then the cow said 'Ma' and so F = Ma Then he kicked the cow and here comes the third law. The cow kicked him back. This is how I remembered these laws.

Excellent presentation. Thanks for being more organized and slowing down the talking.

I love this channel, please never stop it..!

I love learning in my free time. Thanks for the videos! I'm about to start college, and these videos have definitely helped refresh my memory about what I've learned in high school while keeping me entertained by presenting new additional info.

@Iffyish

7 жыл бұрын

I also love the graphics because I learn best visually. Thanks again!

@swarnalatha5242

4 жыл бұрын

Excuse me? This is taught in 6th grade

@Iffyish

4 жыл бұрын

@@swarnalatha5242 not in detail where I live.

@swarnalatha5242

4 жыл бұрын

@@Iffyish kk no offence though

@Iffyish

4 жыл бұрын

@@swarnalatha5242 None taken, lol, schools here aren't great. Once got a bad grade on my trigonometry final in highschool, went back and checked, and some of the test answers were actually wrong. My teacher corrected it after - thankfully, she wasn't the type to outright ignore constructive criticism like some teachers.

At 8:23, isn't the force of tension the same as the force of gravity on the counterweight ? I mean Ft = m(c).g It's Just the only thing that i don't understand.

Who needs notebooks when you have CrashCourse? I have a test on this in 4 days but I don't even look at what we have learned in class, I don't need it, I got Shini

+CrashCourse This is so informative! I love your channel! What software did you use? Thanks for making such great videos!

When you sleep in class, so you end up watching this at night trying to do homework

Her enthusiasm help. Thanks!!!

yesss her videos are getting so much better! great explaining! great visuals!

@TheFireflyGrave

8 жыл бұрын

Yeah, the first couple were a bit rocky but they've improving the pacing and explanations a lot.

0:40 Snake? Solid Snake? Man, I did not expect to see him during Physics class.

It's my first time checking out the physics crash course and Shini does a great job. Some of the other people get a little too hyperactive and confusing. This was perfect.

Thank you for this video! It helped sooo much, I'm a fifth grader trying to learn the order.

Okay, this is the first explanation of normal force that makes sense to me. Thank you!

this was rlly useful I hopefully I will ace my physics force test cause its today

My test is tmrw 😂😂🤣I never studied! I'm lost! Why do I have this class? 😪

Great Video! Helped alot!

Great vid, loved this.

Laws of motion do not work, My crush atracts me but I do not atract her. :)

@rashiverma1151

4 жыл бұрын

😥😥

@hegrye

4 жыл бұрын

Lol

@satuispunk

4 жыл бұрын

Dang, I feel you. Mine said that's she liked girls, but she's not into me and now I'm sad. Why am I writing this? In a physics video of all places 😂

I laughed so hard when the lady got hit by that bowling ball😂

I just like how she is explaining physics with such a smiling face i start loving phy but my finals r near i should have discover this early

I'm having to catch up on Forces and this is so helpful!

In before thumbnail.

@bobjohnson6917

8 жыл бұрын

Same

@Bacon12954

8 жыл бұрын

Same

@adammehdi9205

8 жыл бұрын

+superj1e2z6 yep

@GeneralKaleRan

8 жыл бұрын

+superj1e2z6 Same

@callumdenault2895

8 жыл бұрын

Yep

her: algebra me: hold on jus a moment

I really like watching these before the lecture on the topic.

I love the set up..... Great graphics... I hope I'm able to step up my own videos. However great illustration of Newtons laws, keep it up crash course, great work