Scalars, Vectors, and Vector Operations
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- Опубліковано 27 тра 2024
- What are all these funny little arrows? They're vectors! And we will use them to represent every single force we discuss in physics, so we need to know how to draw them, add them, subtract them, split them up into X and Y components, the whole nine yards. We also need to know the difference between vectors and scalars. So let's get this stuff taken care of before we dive into the physics!
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If I had math and physics teachers like you in high school, I might not have majored in literature.
@Gray El entrenador Pokémon literature Duhhhhhhhhh
@Gray El entrenador Pokémon
Words
funny but I relate
your teachers like mine, were not that good.
Relatable. Because I'm also looking forward to major in literature.
Sincerely,
an 11th grade math student.
This guy deserves more views. I've gone back to University after teaching ESOL overseas for 10 years, and COMPLETELY lost in physics coz they teach like we remember all the basics out of highschool. This is so simple and easy to understand, and thorough (for such a basic overview style).
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Me too
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Thank you for these videos! I've been having so much trouble in my 200 level Physics class, it's been driving me INSANE! These are a great overview of key topics!
I'm so excited to start physics this summer. Wish me luck!
go get 'em!
Lol
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Thank you Professor Dave !!! It helped me alot !! Plz make a video on cross product and dot product of two vectors !! It would be a great help !!
that's coming soon!
Professor Dave Explains thank you sir
I'm a college freshman student and I'm about to take the very first physics course in my life. I never took physics in high school and I dropped math eventually.
I was thankfully able to understand the differences between vectors and scalars from this video, as well as trigonometry. Calculating vector components sounds a bit complicated to me though. I still have an interest in astronomy and physics, and this channel is helping me understand the main concepts of my classical physics class. Just currently praying that this class won't end up in disaster for me.
Thanks Dave.
check out the whole classical physics playlist, it'll help a ton!
i as well love astronomy and physics and i know this was 3 years ago but im a freshman this year in collage. i hope all is well
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@@Silent_Quasar Im happy to hear that! My astro/physics interest is more of a hobby for me nowadays. But the way I got through physics and math was just by passing. Now I'm in electives that I thoroughly enjoy with work I don't stress over. It's a lot of fun, I don't regret it.
as a high school student teaching myself physics over the summer, I wanted thank you for everything you offer on your channel! this is far better than khan academy for my style of learning. My goal in life is to never stop learning, and you have made that goal far easier to obtain! thank you Professor Dave!
Do you teach in a university. I mean what do you do apart from these extremely great video lectures ?
By the way, your lectures are extremely great and I can confidently tell that you are one of the greatest teachers in the world.
thanks kindly! i used to teach organic chemistry at a little trade university but now that the channel is picking up steam i just do science communication and freelance curriculum development. it's a lot of fun and i look forward to building the channel as much as possible! please spread the word!
Thank you so much Dave for making these videos. You are an amazing person for making these
Professor Dave is my new physics professor! Thank you for your videos, they have helped tremendously!
Your lectures are truly amazing. Love your work, please do not stop. ❤
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Will do!!
Me too. Since I can't donate.
But I'm very grateful for his videos
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Plzz make more videos on physics......
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The light in the dark of my tunnel is the professor dave to my physics class
This is awesome, thank you Professor Dave!
Thanks so much for this! Really easy to follow and very understandable! My deep appreciation!
Basic concept explained in simplistic words... it helps in laying strong fundamentals of discussing subject. Thx prof. dave..
Its 2021 and your vids are still helping us! Thank you!
Since I don't have any idea about vectors, watching this helps me a lot❤ thank you Prof. Dave
Finally a great explanation! Even you explain the reason behind all the formula!
Thank you again for explaining the math side in such a pure simple way for us newbies to physics in a long time. The simple click that vectors are in relation to the Pythagoras equation. Thanks :D
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Honestly you made this super easy
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Thanks
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When professor dave explains
U are one of the best (if not the best) teacher I've ever had
Awesome and helpful videos... Ur videos have always helped
This video made things so much simpler than in my physics class
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A whole a lot easier lol
His videos are short but informative! Thanks!
He makes me feel like not only smart people can understand physics, & the content doesn't seem like oversimplified teachings ,thanks.
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I am a software engineer... and sadly,
5 minutes ago I didn't know what a vector was or a scalar lol. Now I know how to find sin, cos, tan.
5 minutes ago I didn't know what those terms even meant.
... of course I knew at one point but long forgot
Thank you professor to make it easy to understand ..now I will correctly learn
Thank you professor dave, you explain it clearly... :D
Thank you so much Professor Dave 👍
Thank you prof. Dave
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Awsome work.
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Thank you for explaining things in a way so that someone like me might understand. I like to learn, but sometimes I need a lot of dumbing down. Thank you!!
If anyone cannot follow the SOCAHTOA mnemonics device, it might be better to memorise this mnemonic device:
*S*ome *P*eople *H*ave
*C*urly *B*rown *H*air
*T*ightly *P*ulled *B*ack
This denotes:
Sin θ = Perpendicular/Hypotenuse
Cos θ = Base/Hypotenuse
Tan θ = Perpendicular/Base = sin θ / cos θ
You are doing a very good thing by explaining these things for free.
the intro always makes me feel alive and ready to learn lol
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2:01 did i just hear?
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That's a good explanation ❤
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I've watched this video about 4 times. I think I'm ready for the next lesson.
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will you be going through history of how these methods were discovered? (ie Galileo's ramp experiment that discovered the independent x and y Forces)
ooh good idea! maybe i'll add it to the list.
glad i could help :)
Thank you explain Sir
Who in the seven seas has been disliking these purely scientific videos
This guys the reason im gonna get into physics
Thank you for this video it helped me flesh out my cheat sheet for my exam! (We are allowed to have a sheet of motes for the test)
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Thank you Mr. Dave. I always wish i had a dry erase board when I talk to people. I will refer them to you. ( I teach music, but harmonic sequences....DOH!)
9:43 now this is going to be stuck in my head for a while
the jingle sounds especially good in this video for some reason
In the boat example, it depends whether you want to cross as fast as possible or to take the shortest path from bank to bank. If the latter, then you should point the boat upstream and the result would be sqrt(15) m/s and zero degrees.
Thanks so much !!
Going to the chemistry series then!
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THANKS. really helped me
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Excellent
I don't know why some people dislike your video, don't subscribe to your channel, don't watch your videos.
Do you have any solid answer of that WHY? Because I don't know.....
some people are stinky jerk-faces!
No i think they just meant 'dis I like'
Why is the current point downwards? I would expect it to be just interpreted as -1 so the netto speed would be 4-1=3 m/s. Could somebody explain to me what I am doing wrong here.
Yea I got confused too, but eventually realized he meant crossing the river and not traveling along with the river. Crossing from one side to the other, hence pushing the boat to the side and not backwards. Looks like in physics you *really* need to be on point taking things into account
I kinda get vectors & scalars by relating “velocity” and “vector”. Both involve direction
great sir
thanks professor
can you explain equivalent number and normality?plz
My teacher recommended us these videos and I'm glad she did...
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because i'm the shiznittle bam shiznat
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Thank you so much! Your explanation is amazing ! But i didn't get how to calculate the inverse of sin, cos and tan, yet. I'm going to search a bit more. Am from Brazil👏
Check my math tutorials!
I literally must have slept through trigonometry, cuz I don't recall any of this.
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You just thought me something within 4 minutes compared to my school within an hour but still can't explain what the heck is going on
I've been adjacent to your videos, and have watched some to better understand some topics in calculus and chemistry, as well as your videos involving the flat earth community and arguments with that one "apologist" (i forget his name), but i didn't know you made more comprehensive series for large topics, thanks!
ik this video is quite old, but why should you use sin^-1 when using the difference of two squares law instead of -sin?