Uploaded May 2025 | Updated September 2026, 2 weeks ago
I predict that a question similar to this will come up in the 2025 A Level Physics exams this year. I don't know the exact context, but I suspect a question may include some data processing, a new exponential decay formula, a gradient that has to be calculated from a straight line of best fit (and probably a question involving a potential divider circuit).
But I can't predict exactly which questions will come up in which paper - that is impossible!
Thanks for watching,
Lewis
___________________________________________
📖 CHAPTERS
00:00 - My 'prediction'
02:42 - Overview of the practical setup (light meter and jelly experiment)
03:29 - Completing the data table for natural logarithm values
05:51 - Plotting points on the graph and drawing the line of best fit
08:59 - Demonstrating how exponential equations translate to straight-line graphs
12:28 - Determining the initial light intensity from the y-intercept
14:58 - Calculating the proportionality constant from the gradient
18:19 - Analysing the potential divider circuit for a homemade light meter
23:30 - Discussing ways to increase the output voltage in the circuit
29:07 - Explaining how the circuit responds to changes in light intensity
🚨 WATCH NEXT
All of AQA Waves Explained - A Level Physics: youtu.be/fbAm5psmdKY?si=-fc3writvZb_ZMGM
All of AQA Electricity Explained - GCSE Physics: youtu.be/EmCGF49Uils?si=TOq8HUraOXsSqU2c
🔍 MENTIONED IN THE VIDEO
► Daily Workbooks: amazon.co.uk/Physics-Online/e/B09SHQ5R4B
► Practice Papers: https://physicsonline.shop/
► Premium Plans: physicsonline.com/premium-plans
___________________________________________
🔔 Subscribe for more FREE revision videos and resources:youtube.com/@PhysicsOnline 🔔
💻 REVISION WEBSITES
Join thousands of students and schools using our websites to learn and revise for your exams. Every video is organised by exam board and topic.
► GCSE Students: gcsephysicsonline.com
► A Level Students: alevelphysicsonline.com
🎟️ PREMIUM PLANS
Unlock access to every video and resource for up to 36 months.
► physicsonline.com/premium-plans
🎁 FREE RESOURCES
From Revision Guides to Practice Papers, download our free resources here.
► GCSE: physicsonline.com/gcse-free
► A Level: physicsonline.com/alevel-free
📝 SHOP PRACTICE PAPERS
Visit the shop to download both GCSE and A Level Practice Papers we've made so that you can practice as many questions as possible before your exams. Teacher editions also available.
► https://physicsonline.shop/
📘 SHOP DAILY WORKOUT (Amazon Exclusive)
Practice A Level questions everyday in the lead up to your exams with our series of books to support your learning all year round. With answers, worked solutions and video work-throughs.
► amazon.co.uk/Physics-Online/e/B09SHQ5R4B
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► TIKTOK: tiktok.com/@physicsonline
► INSTAGRAM: instagram.com/physicsonline
► YOUTUBE: youtube.com/@PhysicsOnline
► TWITTER: twitter.com/legophysicsguy
► LINKEDIN: uk.linkedin.com/company/physicsonline
👨🏫 ABOUT PHYSICS ONLINE
Quality trusted Physics so that you can achieve your highest grade. Founded by Lewis, a former Physics Teacher and Head of Science, Physics Online is now the leading brand for Physics videos and resources. With affordable Premium Plans and School Subscriptions, thousands of students and schools now use our resources to learn and revise every day.
Find out more here: ► physicsonline.com
#PhysicsOnline
I predict that a question similar to this will come up in the 2025 A Level Physics exams this year. I don't know the exact context, but I suspect a question may include some data processing, a new exponential decay formula, a gradient that has to be calculated from a straight line of best fit (and probably a question involving a potential divider circuit).
But I can't predict exactly which questions will come up in which paper - that is impossible!
Thanks for watching,
Lewis
___________________________________________
📖 CHAPTERS
00:00 - My 'prediction'
02:42 - Overview of the practical setup (light meter and jelly experiment)
03:29 - Completing the data table for natural logarithm values
05:51 - Plotting points on the graph and drawing the line of best fit
08:59 - Demonstrating how exponential equations translate to straight-line graphs
12:28 - Determining the initial light intensity from the y-intercept
14:58 - Calculating the proportionality constant from the gradient
18:19 - Analysing the potential divider circuit for a homemade light meter
23:30 - Discussing ways to increase the output voltage in the circuit
29:07 - Explaining how the circuit responds to changes in light intensity
🚨 WATCH NEXT
All of AQA Waves Explained - A Level Physics: youtu.be/fbAm5psmdKY?si=-fc3writvZb_ZMGM
All of AQA Electricity Explained - GCSE Physics: youtu.be/EmCGF49Uils?si=TOq8HUraOXsSqU2c
🔍 MENTIONED IN THE VIDEO
► Daily Workbooks: amazon.co.uk/Physics-Online/e/B09SHQ5R4B
► Practice Papers: https://physicsonline.shop/
► Premium Plans: physicsonline.com/premium-plans
___________________________________________
🔔 Subscribe for more FREE revision videos and resources:youtube.com/@PhysicsOnline 🔔
💻 REVISION WEBSITES
Join thousands of students and schools using our websites to learn and revise for your exams. Every video is organised by exam board and topic.
► GCSE Students: gcsephysicsonline.com
► A Level Students: alevelphysicsonline.com
🎟️ PREMIUM PLANS
Unlock access to every video and resource for up to 36 months.
► physicsonline.com/premium-plans
🎁 FREE RESOURCES
From Revision Guides to Practice Papers, download our free resources here.
► GCSE: physicsonline.com/gcse-free
► A Level: physicsonline.com/alevel-free
📝 SHOP PRACTICE PAPERS
Visit the shop to download both GCSE and A Level Practice Papers we've made so that you can practice as many questions as possible before your exams. Teacher editions also available.
► https://physicsonline.shop/
📘 SHOP DAILY WORKOUT (Amazon Exclusive)
Practice A Level questions everyday in the lead up to your exams with our series of books to support your learning all year round. With answers, worked solutions and video work-throughs.
► amazon.co.uk/Physics-Online/e/B09SHQ5R4B
📲 FOLLOW US
► TIKTOK: tiktok.com/@physicsonline
► INSTAGRAM: instagram.com/physicsonline
► YOUTUBE: youtube.com/@PhysicsOnline
► TWITTER: twitter.com/legophysicsguy
► LINKEDIN: uk.linkedin.com/company/physicsonline
👨🏫 ABOUT PHYSICS ONLINE
Quality trusted Physics so that you can achieve your highest grade. Founded by Lewis, a former Physics Teacher and Head of Science, Physics Online is now the leading brand for Physics videos and resources. With affordable Premium Plans and School Subscriptions, thousands of students and schools now use our resources to learn and revise every day.
Find out more here: ► physicsonline.com
#PhysicsOnline
