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A Level Physics HQ
United Kingdom
Registrace 17. 02. 2017
*Free and Ad-Free physics education*.
Free to watch videos with no adverts. If you'd like to support my work visit my website for worksheets and textbooks that you can buy: physicshq.wixsite.com/alevelphysicshq/textbooks
At my website you will also find many free resources to help you consolidate your understanding of physics concepts including physics quizzes and worksheets.
Lessons, experiments, skills, and animations for learning physics at A-Level standard. Videos will cover all of the content for A-Level physics with some videos going beyond; some pre- and some post-A-Level.
A-Levels are a UK education standard but I hope you still find these videos useful even if you're not taking A-Level physics.
All the work of and copyright Daniel Wilson (specialist physics teacher and professional software developer), London, UK (© unless stated). If you have questions, comments or criticisms please contact me.
Free to watch videos with no adverts. If you'd like to support my work visit my website for worksheets and textbooks that you can buy: physicshq.wixsite.com/alevelphysicshq/textbooks
At my website you will also find many free resources to help you consolidate your understanding of physics concepts including physics quizzes and worksheets.
Lessons, experiments, skills, and animations for learning physics at A-Level standard. Videos will cover all of the content for A-Level physics with some videos going beyond; some pre- and some post-A-Level.
A-Levels are a UK education standard but I hope you still find these videos useful even if you're not taking A-Level physics.
All the work of and copyright Daniel Wilson (specialist physics teacher and professional software developer), London, UK (© unless stated). If you have questions, comments or criticisms please contact me.
Transformers - Analysing Turns Ratio and p.d. Equation Data
Analysis of the data from the experiment to investigate the transformer turns ratio equation.
A statistical investigation of the linear correlation between the turns ratio and p.d. ratio. This is done with fairly simple data but obviously the method can be applied to more complex data to see how closely aligned the data sets are to a linear correlation.
There is a worksheet to go with this experiment so that you can attempt the data analysis yourself. And the spreadsheet that I use is available as a free download. Get them both via the website here: physicshq.wixsite.com/alevelphysicshq/resources-linked-to-videos
Experiments with waves, like this one, are good practice for mandatory practicals for many physics specifications, such as OCR physics A, AQA A-Level physics, Edexcel A-Level physics, CPAC, PAG, practical endorsement.
Relevant concepts: transformers, electromagentic induction, step up, step down, r, r squared, correlation.
A statistical investigation of the linear correlation between the turns ratio and p.d. ratio. This is done with fairly simple data but obviously the method can be applied to more complex data to see how closely aligned the data sets are to a linear correlation.
There is a worksheet to go with this experiment so that you can attempt the data analysis yourself. And the spreadsheet that I use is available as a free download. Get them both via the website here: physicshq.wixsite.com/alevelphysicshq/resources-linked-to-videos
Experiments with waves, like this one, are good practice for mandatory practicals for many physics specifications, such as OCR physics A, AQA A-Level physics, Edexcel A-Level physics, CPAC, PAG, practical endorsement.
Relevant concepts: transformers, electromagentic induction, step up, step down, r, r squared, correlation.
zhlédnutí: 823
Video
Acceleration of Free Fall - Analysis of the Experiment
zhlédnutí 3,3KPřed 2 lety
I've * finally * shot and edited this analysis video! 🤦♂️ 🥳 Analysis of the data collected for the experiment to determine the acceleration of free fall (often referred to acceleration of gravity or g). There is a free worksheet to go with this experiment. I recommend that students try doing the analysis themselves - get as much practice as possible! Worksheet available here: www.tes.com/teach...
Transformers - Investigating the Turns Ratio Equation
zhlédnutí 3,6KPřed 2 lety
In this video I investigate the transformer turns ratio equation: V₁ / V₂ = N₁ / N₂ This video shows the collection of primary and secondary p.d. readings for a range of turns ratios using a pair of double coils. One coil is a pair of 60 turn coils; the other is a pair of 120 turn coils. So turns combinations such as N₁ = 60 and N₂ = 120 and N₁ = 120 and N₂ = 240 can be investigated. By connect...
Light intensity and Distance from Source - Analysis of the Experiment
zhlédnutí 4,2KPřed 2 lety
Analysis of the experiment to investigate the relationship between light intensity and distance. This video shows the analysis of the experiment (including the geometry of the set up and data analysis) to determine the power of a torch via intensity measurements at measured distances and to investigate the relationship between the beam intensity and distance. The measurements were collected in ...
Do it yourself: Boyle's Law Data Collection
zhlédnutí 4,4KPřed 3 lety
This is a new video concept that I'm trying out for viewers - DIY physics. Let me know if this is a type of video that you want more of or if it is no use. This is a video showing a close up of the pressure gauge and volume scale in the Boyle's Law experiment. This enables students to collect the data directly from the scales without relying on someone else to interpret the scales for them. The...
Capacitor Discharge through a Resistor - Analysis of the Experiment
zhlédnutí 3,6KPřed 3 lety
This is the analysis of data for the experiment to determine an unknown capacitance. A capacitor discharges through a resistor (known resistance) and the potential difference across the capacitor is measured along with time. Two methods are used to determine C: ① Taking logs and using gradient from lnV v. t graph. ② Using time constant which is found by analysing V v. t graph. There is a worksh...
Planck's Constant with LEDs - Analysis of the experiment to estimate Planck's constant
zhlédnutí 2,5KPřed 3 lety
Analysis of the results collected in the experiment to estimate Planck's constant. In video 1 threshold voltages across LEDs were measured to provide a way of measuring the amount of electrical energy used to emit photons of known wavelengths. In this video the results are analysed with the aid of a spreadsheet to estimate Planck's constant. Video 1 is available here: czcams.com/video/JZ7XW-BfP...
Light intensity and distance - Experiment to investigate the relationship
zhlédnutí 10KPřed 3 lety
An experiment to investigate the relationship between light intensity and distance. A torch provides the light beam and the intensity of the beam is measured using a lightmeter at systematic distance intervals. The lightmeter measures intensity in lux. This video shows the set up and data collection. The measurements are used in a follow up video (czcams.com/video/gckED4vbOGQ/video.html) to det...
Transformers for Powerlines - Practical classroom demonstration
zhlédnutí 717Před 3 lety
Why do we step up electricity supplies only to step them back down again in National Grid systems? This video demonstrates the need for transformers to step up and step down electricity supplies to enable more efficient distribution of electricity over long distances through power lines. The demonstration simulates a power station providing electricity to a domestic user wanting to light a ligh...
Analyse log graphs in physics | A-Level Physics How To
zhlédnutí 4,5KPřed 3 lety
In physics practical work we frequently plot straight line graphs that we use to calculate an unknown quantity. But how is the graph used to determine the quantities of interest? In this video I demonstrate how to derive the log equation from an experiment's equation and compare that to y = mx c so that we can relate the graph's gradient and y-intercept to unknown quantities. I demonstrate the ...
MRI Scan Animation : How magnetic resonance imaging works
zhlédnutí 72KPřed 3 lety
This animation explains how a MRI scan is obtained. It covers how the magnetic resonance signal is produced and detected in the body using powerful magnets and radiofrequency pulses. The role of key components (magnets, gradient coils, and RF coil) are linked to the processes taking place in the body. The animation explains how the MRI signal is localised in image slices of the body using gradi...
Analyse a graph in physics using y = mx + c | A-Level Physics How To
zhlédnutí 14KPřed 3 lety
In physics practical work we frequently plot straight line graphs that we use to calculate an unknown quantity. But how is the graph used to determine the quantities of interest? In this video I explain how to compare the experiment's equation to y = mx c so that we can relate the graph's gradient and y-intercept to unknown quantities. I then demonstrate the method by analysing three real equat...
Capacitor Discharge Experiment - Determine Unknown Capacitance
zhlédnutí 13KPřed 3 lety
This is the data collection for the experiment to determine an unknown capacitance. A capacitor discharges through a resistor (known resistance) and the potential difference across the capacitor is measured along with time. Two methods can be used to determine C: ① Taking logs and using gradient from lnV v. t graph. ② Using time constant which is found by analysing V v. t graph. Both methods ar...
Acceleration of free fall experiment with light gate
zhlédnutí 13KPřed 3 lety
Data collection for the experiment to determine the acceleration of free fall (often referred to acceleration of gravity or g). There is a free worksheet to go with this experiment. I recommend that students try doing the analysis themselves - get as much practice as possible! Worksheet available here: www.tes.com/teaching-resource/acceleration-of-free-fall-experiment-with-light-gate-worksheet-...
How to choose a scale on a graph (part 2, method applied to messier data) | A-Level Physics How To
zhlédnutí 19KPřed 3 lety
How to choose a scale on a graph (part 2, method applied to messier data) | A-Level Physics How To
How to choose a scale on a graph | A-Level Physics How To
zhlédnutí 146KPřed 4 lety
How to choose a scale on a graph | A-Level Physics How To
Nuclear Power Plant - How a Nuclear Reactor Works [Half-life, video 04]
zhlédnutí 2,2KPřed 4 lety
Nuclear Power Plant - How a Nuclear Reactor Works [Half-life, video 04]
Planck's Constant - Experiment to Estimate the Value of Planck's Constant
zhlédnutí 8KPřed 4 lety
Planck's Constant - Experiment to Estimate the Value of Planck's Constant
Deflection of charged particles in a magnetic field
zhlédnutí 9KPřed 4 lety
Deflection of charged particles in a magnetic field
Deflection of charged particles in an electric field
zhlédnutí 5KPřed 4 lety
Deflection of charged particles in an electric field
Boyle's Law Experiment: Demonstration and Data Collection
zhlédnutí 97KPřed 4 lety
Boyle's Law Experiment: Demonstration and Data Collection
Problem Solving Physics - Quantum Physics, Matter Waves 2
zhlédnutí 234Před 4 lety
Problem Solving Physics - Quantum Physics, Matter Waves 2
Problem Solving Physics - Quantum Physics, Matter Waves 1
zhlédnutí 633Před 4 lety
Problem Solving Physics - Quantum Physics, Matter Waves 1
Problem Solving Physics - Quantum Physics, Photons 3
zhlédnutí 181Před 4 lety
Problem Solving Physics - Quantum Physics, Photons 3
Problem Solving Physics - Quantum Physics, Photons 2
zhlédnutí 158Před 4 lety
Problem Solving Physics - Quantum Physics, Photons 2
Problem Solving Physics - Quantum Physics, Photons 1
zhlédnutí 1,2KPřed 4 lety
Problem Solving Physics - Quantum Physics, Photons 1
Feynman Diagrams: Beta Decay Equations [Half-life, video 03]
zhlédnutí 4,2KPřed 4 lety
Feynman Diagrams: Beta Decay Equations [Half-life, video 03]
Nuclear Decay Modes on a Graph [Half-life, video 02]
zhlédnutí 363Před 4 lety
Nuclear Decay Modes on a Graph [Half-life, video 02]
Uncertainties in Graph Gradients and Y-Intercepts Using Lines of Worst Acceptable Fit
zhlédnutí 23KPřed 4 lety
Uncertainties in Graph Gradients and Y-Intercepts Using Lines of Worst Acceptable Fit
This is the best explaination I ever got!!
Nice 😊 Just Couldn't leave without a like and a sub
Wowwwwww❤this was so helpful 🎉thanks alot
Thank you so much
The best soo far🔥
God bless you brother
Thanks! All the best with your studies
how did you write the stress and strain on the result table, im confused
I wrote extension values. Stress and strain are calculated values - they are calculated from extension, mass, area etc.
🤩
Or you can go modern and use a Micro-X carbon nanotube.
Well explaint
Thanks!! All the best
Will it work on PF capacitors
How we can determine the resistance of voltmeter by discharging of capacitor.please help
This video helped me a lot! Thank you very much!
You're welcome! Glad it helped.
This video was a great help! Thank you very much! 😍
Glad it was helpful! All the best with your studies.
I've been wondering how charging up a capacitor is faster than discharging it
It isnt always it depends on circuit resistance. If you charge with no resistance it’ll charge quickly. If you charge through a resistor it’ll take longer. Same for discharge.
is there a breadboard equivalent to that switch you've used there?
Am so grateful for this video, am watching this right now 8:49 am in Nigeria.
Thanks a lot, I was doing a constant % uncertainty giving me insane absolute uncertainties. Great vid, helped a lot.
thank u!
I agree with others’s comments: the music was pretty sick and suitable for this topic
how the fact that the wires get hot when the amperage is 3A affects the result and the experiment?
What to choose btw 0.06 and 0.1 plz tell
Thanks❤
Thanks a lot. Great help!
You're welcome! All the best
That's the best animation of X ray production that I have ever seen
Thanks so much!! All the best with your studies.
Hello, great video. One question, why isn't atmospheric pressure added to the pressures? I understand that it is a manometer and only indicates relative and not absolute pressure of the gas.
❤ Very nice make other videos
Veo comentarios de muchos años atrás y aún en este año (2024) me parece estupendo este vídeo ¡Excelente!. Quiero hacer la salvedad que no soy de comentar ningún vídeo.
Interesting 😅😅
this is so helpful!! thanks a lot 👍🏼
that was sick
Thanks!! 🤩. All the best with your studies.
Hero
Thanks 🙏 All the best
Omg❤️❤️❤️very usefulllll
Brilliant, glad it helped. All the best.
Thank you sir Great explanation and fruitful also 🙏
You’re very welcome. All the best with your studies.
how did bro got that plutonium
Too busy vibing to the music to keep up with the slides 😂
Can you iron your shirt pls 🙃😂🤔😉🧠😅i NEED your tutorial x
awesome. wow.. this is a good video
Effective video , great Job , Thank you :D
cheers mate, came up on an exam question and had never seen it before
Thank youuuuu so much ❤❤
Thank you so much ❤😊
You’re very welcome!! All the best.
I love your video sir😊. Explanation, simple. Sir the intercept being zero means that the graph has no intercept?😶
Thanks so much. Yes that is correct RE the intercept.
Force à tout ceux qui ont une activité de ES sur ce truc par Saideh
Merci, même de la force c'est pas assez
This is my second year teaching and this was very insightful. Thank you.
why does this not work for me
Where does 14 came from
14 large squares on the grid horizontally
Thanks @@Multisthetics
@ridhima1933 no problem
Great work! ⚡👍
Thanks 🔥
Very nice video... explained very well
Thanks so much. All the best for your studies.
wow EPIC music and EPIC video quality I was learning and shaking my head at the same time lol keep it up this is the highest educational video quality I've ever seen