PhysicsOMG
PhysicsOMG
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Transformers (and stolen microwaves)
In all seriousness, don't try this at home. Transformers are fun if you know what you're doing. Dying isn't fun.
This video is about transformers: what they are, how they work, and why they are so dang useful.
0:00 - What is a transformer?
1:35 - How a transformer works
4:41 - Solving unknown values with transformers
7:54 - Step up vs. step down transformers
9:49 - Fun with stolen transformers
Переглядів: 195

Відео

Ampere's Law and the Curl Right Hand Rule
Переглядів 1,3 тис.2 роки тому
How to use another version of the right hand rule to find the direction of the magnetic field created by a current in a wire. This applies not only to straight wires, but also loops of wire and solenoids (a bunch of loops of wire), which we will look at later. Ampere's Law is how to calculate how strong that field is based on how close to the wire you are measuring. 0:00 - Intro, the curl Right...
Solving Two Types of Projectile Problems
Переглядів 1602 роки тому
sd 0:00 - Solving horizontally launched projectile problems 2:00 - Example solving horizontal launch problem 4:08 - Solving an angled launch projectile problem 6:47 - Example solving angled launch problem
Solving Vector Addition Problems
Переглядів 1,1 тис.2 роки тому
How to solve more complicated (sort of) vector addition problems by adding up the components of the original vectors. The components of the vectors being added will always sum to the components of the resultant vector, so when you have angles other than 90° or multiple vectors it is often easier to do it this way. Problem 1: A pedestrian moves 6 km east and then 13 km north. Find the magnitude ...
Diffraction Gratings
Переглядів 2522 роки тому
Diffraction gratings are similar to single and double slits. Whereas we only cared about dark slits with single slit interference, with diffraction gratings IT IS THE BRIGHT SPOTS THAT MATTER. The order number (m) refers to which bright spot maximum you're looking at. While you can measure the slit width (d), the spacing is more often referenced in terms of lines per unit distance, which is fou...
Single Slit Diffraction
Переглядів 1,1 тис.2 роки тому
Single slits are similar to double slits, but you have to remember for single slit interference it is the DARK FRINGES THAT MATTER. The order number (m) only refers to dark fringes and there are no half integers. The other main difference is that xm is the distance from the center to the first dark fringe, so that means the width of the central maximum is 2 times xm. 0:00 - Intro 1:40 - How Sin...
Quantum Physics - Part 3 (Bohr's Model of the Atom)
Переглядів 3 тис.2 роки тому
In 1913, Neils Bohr proposed a model of the atom that incorporated Planck's energy quanta and answered a lot of the questions that were still troubling scientists at the time. Although it's not a complete model, it still does a good job at explaining what is happening inside the atom. 0:00 - Review of everything so far 0:26 - Competing atomic models 1:03 - The Geiger - Marsden Experiment 4:03 -...
Average vs. Instantaneous Velocity
Переглядів 1532 роки тому
Average vs. Instantaneous Velocity
Intro to Electric Flux & Gauss's Law
Переглядів 1972 роки тому
An introduction to electric flux, the area vector, and Gauss's Law. 0:00 - Intro 1:36 - Flux and what affects flux 2:38 - The area vector 3:58 - Positive vs. negative flux 6:05 - Sign of flux on a cylinder 12:02 - Using Gauss's Law to make it easier Important Points: - The area vector is a vector that is normal (perpendicular) to the surface area it describes. - Electric flux can be positive, n...
Bullet Fired vs. Dropped Short
Переглядів 3542 роки тому
An object is fired horizontally from a certain height. Another object is dropped at exactly the same time as the other object is fired. Both hit the ground at the same time, because both have an initial velocity in the y-dimension of zero, and that means both will hit the ground at the same time. In the side view you can see that the ball and the camera are always at the same height (the camera...
Calculating Confidence Interval on a TI-84
Переглядів 4032 роки тому
How to use your calculator to get a confidence interval from a set of collected data.
Polarization, How Polarizers Work, & Malus' Law
Переглядів 8612 роки тому
Polarizers are basically gates that allow light to come through that is only oriented a certain way based on the electric field component of the electromagnetic wave. Polarized sunglasses and lots of other things work based on this principle. Malus' Law describes how the intensity of light changes after it travels through a polarizer. 0:00 - Intro, what does a polarizer do? 1:23 - How does a po...
Adding Resistors in Series & Parallel
Переглядів 1093 роки тому
Review of how resistors work, and how resistors behave when added in series and parallel. It may seem weird at first, but adding resistors in parallel actually LOWERS the overall resistance. If you can remember how resistors behave in series, then you know resistors in parallel must follow the reciprocal equation. 0:00 - Intro, how resistors work 0:45 - Resistors in series 1:45 - Calculating eq...
Coulomb's Law (what it is, how to use it)
Переглядів 2893 роки тому
What Coulomb's Law tells us and how to use it. A lot of times problems with Coulomb's Law are hard, but that's just because they become vector addition problems. Actually using Coulomb's Law is pretty simple. 0:00 - Intro to Coulomb's Law 2:47 - Coulomb's Law and Newton's 3rd Law 3:26 - Example Problem 1: three charges in a line 6:29 - Example Problem 2: three charges in a triangle
Horizontally Launched Projectile Problems
Переглядів 2573 роки тому
How to solve horizontally launched projectile problems. Key step is finding the time of flight, that is the variable that connects the two dimensions. 0:00 - Intro/Problem 1 2:09 - Problem 2 4:15 - Problem 3 Problem 1 - A 80 g autographed baseball rolls off of a 1.2 m high table and strikes the floor a horizontal distance of 0.8 m away from the table. How fast was it rolling on the table before...
Intro to Vector Addition and Subtraction
Переглядів 2143 роки тому
Intro to Vector Addition and Subtraction
Completing the Square
Переглядів 1553 роки тому
Completing the Square
Kinematics Problem Solving (Uniform Acceleration)
Переглядів 2,7 тис.3 роки тому
Kinematics Problem Solving (Uniform Acceleration)
Kinematics Equations Derived
Переглядів 2353 роки тому
Kinematics Equations Derived
Trig Functions Example Problem
Переглядів 2213 роки тому
Trig Functions Example Problem
Math Review - Trig Functions (sin, cos, tan, csc, sec, cot)
Переглядів 2,7 тис.3 роки тому
Math Review - Trig Functions (sin, cos, tan, csc, sec, cot)
Vectors vs. Scalars
Переглядів 2693 роки тому
Vectors vs. Scalars
Intro to Dimensional Analysis
Переглядів 863 роки тому
Intro to Dimensional Analysis
Critical Angle & Total Internal Reflection
Переглядів 9693 роки тому
Critical Angle & Total Internal Reflection
Projectile Motion Frames of Reference (Monkey & Hunter Demo)
Переглядів 1523 роки тому
Projectile Motion Frames of Reference (Monkey & Hunter Demo)
Solving Problems with the Uncertainty Principle
Переглядів 2 тис.3 роки тому
Solving Problems with the Uncertainty Principle
Heisenberg's Uncertainty Principle (what it really means)
Переглядів 2 тис.3 роки тому
Heisenberg's Uncertainty Principle (what it really means)
Vision Correction (Normal Eyes, Myopia, Hyperopia, Near & Far Point, Lens Power)
Переглядів 8 тис.3 роки тому
Vision Correction (Normal Eyes, Myopia, Hyperopia, Near & Far Point, Lens Power)
How X-rays Are Produced (and The History of X-rays)
Переглядів 6273 роки тому
How X-rays Are Produced (and The History of X-rays)
Energy of a Photon Problems
Переглядів 1 тис.3 роки тому
Energy of a Photon Problems

КОМЕНТАРІ

  • @duffharrold
    @duffharrold 24 дні тому

    Really nice content. All comments are VERY positive, "rightly" so. I'm going to do you the solid of giving what I'm sure is going to be very unpopular feedback. You say the filler word "right" about 7 times per minute. That's about 80 "right"s in this video. I don't know why this has become my jihad but so it goes. Thanks for your videos, they help a lot. I appreciate you as well...enough to give you this (perhaps unwelcome) feedback.

  • @Rith_Ravindra
    @Rith_Ravindra Місяць тому

    Thank you so much sir. Goated explanation... Also Sir had a doubt, you wrote the equation 1/f=1/v+1/u but isnt lens equation 1/f=1/v-1/u?

    • @PhysicsOMG
      @PhysicsOMG Місяць тому

      The thin lens equation is 1/f = 1/v + 1/u

  • @goatku2511
    @goatku2511 Місяць тому

    Thank you so much sir! Best explanation on this topic..

  • @MOAllDa
    @MOAllDa 2 місяці тому

    Brilliant. If I could give a ton more likes I would. Your explanation is superior to others 👍

  • @sumethingsumething
    @sumethingsumething 2 місяці тому

    can someone explain to me how he is filming this. he isn't writing in reverse right?

  • @GavinPitner
    @GavinPitner 3 місяці тому

    Came here for this specific piece of information. Thank you for a thorough explanation (and correction) of the materials!

  • @anzatzi
    @anzatzi 3 місяці тому

    "peak wavelength"? do you mean wavelength at peak intensity?

  • @douglasstrother6584
    @douglasstrother6584 3 місяці тому

    Planck's approach was to analyze the entropy of blackbody radiation as a function of energy. To make both high-frequency and low-frequency data consistent with the Second Law of Thermodynamics, he included an additional "guess" term proportional to the frequency. Planck's application of Boltzmann's Statistical Mechanics led to his conclusion that the material of the walls emit and absorb radiation in discrete quanta. A paper titled "Planck’s Route to the Black Body Radiation Formula and Quantization" by Michael Fowler (7/25/08) gives a nice discussion.

  • @eddiebechara501
    @eddiebechara501 4 місяці тому

    Which text book are these questions from?

    • @PhysicsOMG
      @PhysicsOMG 4 місяці тому

      Most of these are from the UT Quest online homework database

  • @Philocalyleena
    @Philocalyleena 4 місяці тому

    You have helped me so much with physics, all the way from America to middle east. Thanks a lot sir

  • @dnishal
    @dnishal 4 місяці тому

    Good video, very enjoyable to watch and informative ❤💪

  • @Gamerzzzboy263773
    @Gamerzzzboy263773 4 місяці тому

    Don’t know how I ended up here but you were my physics teacher back in 2018💀

  • @Trttttrrrjjhhhhhttttt
    @Trttttrrrjjhhhhhttttt 4 місяці тому

    Loved it, thanks!

  • @scientist23wannabe_23
    @scientist23wannabe_23 5 місяців тому

    Can i ask something why does the electric field travel

    • @PhysicsOMG
      @PhysicsOMG 4 місяці тому

      It is similar to why a wave in water propagates out when you disturb a point on the waters surface, the change in the electric and magnetic fields at one point induce a change in the part next to it

    • @scientist23wannabe_23
      @scientist23wannabe_23 4 місяці тому

      @@PhysicsOMG thank you so much sir. They never tell us at school

  • @nt4qong
    @nt4qong 5 місяців тому

    This was very helpful!

  • @aminamiah9684
    @aminamiah9684 6 місяців тому

    This was fantastic! Thank you :)

  • @davidpierre3502
    @davidpierre3502 6 місяців тому

    Thank you so much

  • @saii221
    @saii221 6 місяців тому

    what if the question is in velocity instead of speed, would we use the same relationship p=mv ?

    • @PhysicsOMG
      @PhysicsOMG 3 місяці тому

      yes, it would be the same steps to solve as long as the direction did not change

  • @coreyrosteutcher8429
    @coreyrosteutcher8429 6 місяців тому

    So awesome!!!

  • @philoso377
    @philoso377 7 місяців тому

    Nice video and presentation. A plate capacitor without permittivity between its plates cannot establish polarized electric field inside to store charge. Permittivity is provided by dielectric materials such as glass, ceramic, gas as well as vacuum. The permittivity in vacuum is responsible for polarized electric field inside, also responsible for alternating polarized electric field in vacuum and hence electromagnetic and light wave, in vacuum. That also explain why we can see distant stars millions light years away, through vacuum. Vacuum permittivity is provided by Aether, a light medium.

  • @jayjayyoung4891
    @jayjayyoung4891 7 місяців тому

    not explaining enough unfortunately

  • @Buddha-Einstein
    @Buddha-Einstein 7 місяців тому

    With regards to Ultraviolet catastrophe - IF YOU PUT THE FORMULA ASIDE, THEN WHAT IS THE INTUITIVE reason BEHIND the math so one can SEE the intensity going down on higher frequencies, I mean conceptually?

  • @KhaosityK
    @KhaosityK 7 місяців тому

    Its been a while since youve posted, you alright?

    • @PhysicsOMG
      @PhysicsOMG 7 місяців тому

      I moved classrooms this year and didn't have time to get set up. I'll hopefully have time to get back to it this summer!

  • @emeldahdaka4592
    @emeldahdaka4592 8 місяців тому

    Thank you for your help. Great video 👍🏾

  • @ifrazali3052
    @ifrazali3052 8 місяців тому

    I wish you also had add self sustaining quality of EM waves

  • @williamwalker39
    @williamwalker39 8 місяців тому

    A recent radio experiment showing light propagates instantaneously in the nearfield and reduces to the speed of light in the farfield, after one wavelength is also another discovery that will radically change our understanding of science, in particular all of modern physics. In this experiment,the time delay of signals was measured between 2 dipole antennas as the antennas were separated from the nearfield to the farfield. The results showed that the radio waves (light) propagates instantaneously in the nearfield and reduces to the speed of light in the farfield after one wavelength. This corresponds to not only the phase speed and group speed, but also the information speed. These results are completely incompatible with Special Relativity, which is based on the speed of light being a constant c. Inserting c=infinity into the Lorentz transformation yields Galilean transformations, where space and time are absolute. This shows that if an inertial moving object is observed using instantaneous nearfield light, then no time dilation , length contraction, or simultaneity Relativistic effects will be observed. So if Relativistic effects are observed using farfield speed c light, then by simply flicking a switch, one can change the frequency of the light, such that instantaneous light used instead, and the effects of Relativity would go away. This shows that the effects of Relativity are just an optical illusion and that Galilean Relativity is the correct form of Relativity. Here is another very powerful argument that shows Relativity is based on a logical fallacy. According to Relativity, observers on a moving train and on a stationary train platform will disagree on the size of the ""Train"" and the passage of time on the ""Train"". This is a complete logical contradiction if the size and the passage of time of the train are real. If the size of the train is real, then the ""Train"" can not be both contracted and not contracted. The same goes for the observed passage of time on the ""Train"". If these effects are observed, then the only possible conclusion is that it is an optical illusion. Things that are real must appear to be same from all frames of reference. If not, then by definition it is an illusion. Again the argument is very simple and it is the argument Einstein used to derive Relativity, and no acceleration is used in the argument. A train with length (L) traveling at constant velocity (v) relative a stationary observer on a station platform. According to Relativity, the stationary observer will see the train contracted (L/r, where r is the Relativistic gamma), whereas an observer on the train will see it not contracted (L). So the train is both contracted (L/r) and not contracted (L) depending on the observer. This is a complete contradiction (L not equal L/r) and can not be true if length is real. The same argument applies to passage of time on the Train, where both observers will disagree on the passage of time. If time is real, it can not be both dilated and not dilated (T not equal rT). If space and time are observed to be both large and small simultaneously for one inertial reference frame, such as the ""Train"", then it must be an optical illusion. It should be noted that experiments proving Relativity can only give evidence that the theory may be true, but an experiment disproving Relativity, or a logical proof showing a logical fallacy in the theory can absolutely disprove the theory. I have provided both. Since General Relativity is based on Special Relativity, General Relativity must also be an optical illusion. Spacetime is flat and gravity must be a propagating field. Researchers have shown that in the weak field limit, which is what we only observe, General Relativity reduces to Gravitoelectromagnetism, which shows gravity can be modeled as 4 Maxwell equations similar in form to those for electromagnetic fields, yielding Electric and Magnetic components of gravity. This theory explains all gravitational effects as well as the instantaneous nearfield and speed of light farfield propagating fields. So gravity is a propagating field that can finally be quantized enabling the unification of gravity and quantum mechanics. The current interpretation of quantum mechanics makes no sense, involving particles that are not real until measured, and in a fuzzy superposition of states. On the other hand, the Pilot Wave interpretation of Quantum Mechanics makes makes much more sense, which says particles are always real with real positions and velocities. The particles also interact with an energetic quantum field that permeates all of space, forming a pilot wave that guides the particle. This simpler deterministic explanation explains all known quantum phenomena. The only problem is that the Pilot Wave is known to interact instantaneously with all other particles, and this is completely incompatible with Relativity, but is compatible with Galilean Relativity. But because of the evidence presented here, this is no longer a problem, and elevates the Pilot Interpretation to our best explanation of Quantum Mechanics. *UA-cam presentation of above argument: ua-cam.com/video/sePdJ7vSQvQ/v-deo.html *Paper it is based on: William D. Walker and Dag Stranneby, A New Interpretation of Relativity, 2023: vixra.org/abs/2309.0145

  • @ts37924
    @ts37924 8 місяців тому

    Thanks! But could you explain why emmision of light waves would result in continuous decrease energy where as emmision of photons is resulting in discrete decrease in energy. (I know the explanation for photons and discrete energy but can't understand why if em waves were used the energy decrease would be continuous)

  • @COMELETSVIBE
    @COMELETSVIBE 8 місяців тому

    bro seriously a very nice video

  • @judahrosner8663
    @judahrosner8663 9 місяців тому

    Very clear explanation. But why are the curves shown smooth? Is it that there are so many frequencies thaat they appear smooth but if we had better definition we would see little spaces between the points?

    • @PhysicsOMG
      @PhysicsOMG 7 місяців тому

      yea that's exactly it, we just use a smooth curve to represent it since there's so many different possibilities for frequency (a lot, but not infinite). If you zoomed in on the x-axis you would see discrete quantities

  • @arnavkaul7827
    @arnavkaul7827 9 місяців тому

    This is honestly one of the best explanations ive ever heard

  • @aprfff1
    @aprfff1 9 місяців тому

    Fantastic!

  • @yoursfithfully047
    @yoursfithfully047 9 місяців тому

    Excellent explanation and love the way you are presenting it gods work keep it up

  • @carlossierra9685
    @carlossierra9685 10 місяців тому

    dude, this made me understand the concept so well, I was so lost in my college class

  • @theboldenough
    @theboldenough 10 місяців тому

    This man> my college staff with phd's

  • @HOYAMISMAIL
    @HOYAMISMAIL 10 місяців тому

    This is amazing ! Thanks alot

  • @Uncreeperble
    @Uncreeperble 10 місяців тому

    Please tell me how you do the whiteboard thing its the exact setuo as Joel Speranza and hes keeping the secret safe. My final physics exam for 50% is tomorrow morning but this is the most important thing right now.

    • @PhysicsOMG
      @PhysicsOMG 10 місяців тому

      lol it's pretty easy, I set up a camera in front of me, I sit behind the board and write. In the original video, all the writing looks backwards but when you mirror the image it comes out right. You can tell because I'm right handed but it looks like I'm writing with my left hand in the videos

    • @Uncreeperble
      @Uncreeperble 10 місяців тому

      @@PhysicsOMG thank you i thought this was the case. Physics was easiest exam ever although I forgot a few formulas and wrote wrong ones down lol it happens

  • @DeepakRohra
    @DeepakRohra 11 місяців тому

    Man bless you for creating this .. I finally grasped this concept

  • @cindyy3707
    @cindyy3707 11 місяців тому

    thank you for posting! your simple explanation is super helpful

  • @Marcus-hn2gq
    @Marcus-hn2gq Рік тому

    I think it should be the intensity (I) = sigma T^(4) cuz I=P/A 😅

  • @anzatzi
    @anzatzi Рік тому

    Great videos! Thank you!

  • @anzatzi
    @anzatzi Рік тому

    Great video--added significantly to the discussion!

  • @epiendless1128
    @epiendless1128 Рік тому

    Isn't that a HALF wavelength, though? Wavelength should be around 12cm, and that looks more like 6cm.

    • @108doublestitches
      @108doublestitches Рік тому

      Yes, he gets a participation trophy and also an F. Using his data for c, the universe does not exist.

  • @DheerajKumar-d4f
    @DheerajKumar-d4f Рік тому

    Thanks

  • @josephshaff5194
    @josephshaff5194 Рік тому

    Such a critical piece of the puzzle! Great job! 😀

  • @josephshaff5194
    @josephshaff5194 Рік тому

    BAM! Thank You! I couldn't comprehend get how Plank decided to use Energy as discrete units ! omg! I've been wondering that for yrs. yrs!

  • @jcpmac1
    @jcpmac1 Рік тому

    This is one of those those great but largely undiscovered nuggets that not only explains the subject of blackbody radiation in detail but also, importantly, the historical context of the research, the questions being asked about the relation between frequency and temperature, and the steps that led to a solution.

  • @AnneWangJune
    @AnneWangJune Рік тому

    Excellent video!, just one question, why is image distance negative for the last question? because I thought convex lens gives real image. Thanks

    • @PhysicsOMG
      @PhysicsOMG Рік тому

      The image distance is always negative in these types of problems because what corrective lenses actually do is create a virtual image for you to see. Virtual image means negative image distance.

    • @duffharrold
      @duffharrold 24 дні тому

      Converging lense (i.e., convex lenses) give virtual images if the object is inside the focal length of the lens. All corrective lenses MUST create vitual images (regardless of concavity) otherwise you'd see everything upside down.

  • @angrydaniel2905
    @angrydaniel2905 Рік тому

    So I understanding that the energy comes in packets. But why does that make the curve go back down eventually? I don’t understand that yet

  • @bd0282
    @bd0282 Рік тому

    thanks so much. made it 10x easier. appreciate you!

  • @hamidtehrani9919
    @hamidtehrani9919 Рік тому

    Do you have a large LED acrylic board to write on? Your technique for teaching is interesting

    • @PhysicsOMG
      @PhysicsOMG Рік тому

      yep, it's an acrylic sheet with LED edge lighting