GCSE Physics - Elastic Potential Energy and F = ke Equations #45

This video covers:
- How to use the F = ke equation
- What the spring constant k really means (how stiff the object is)
- How to use the EPE = 0.5 k e^2 equation (EPE is elastic potential energy)
- That the gradient of a force-extension graph is k
- That the area under the curve of a force-extension graph is EPE

Remember that extension is sometimes represented as an 'x' rather than as an 'e'.

General info:
- Suitable for all GCSE and IGCSE courses
- Suitable for higher and foundation tiers
- Suitable for triple and combined science

Exam board specific info:
AQA - Everything is relevant to your course!
IGCSE Edexcel - Not mentioned explicitly in the specification.
Edexcel - Everything is relevant to your course! But your course uses x for extension rather than e
OCR 21st Century - Everything is relevant to your course!
OCR Gateway - Everything is relevant to your course!

Related videos/topics:

GCSE Chemistry playlist:

GCSE Biology Playlist:

GCSE Physics Playlist:

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- A huge number of fully-hinted questions that take you step-by-step through some of the trickiest calculations & concepts.
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Amadeus & Tom

[suxela]

It was so helpful that I even watched the ad lol

[carl_job]

Pretty helpful and easily understandable in situation with small amount of time. I appreciate the work and I like how easy it is

[nityaramanathan]

thank you! your channel is the only one that has gotten me through all my phys, chem and bio tests!

[ig]

this is amazing honestly am just going to year 10 and these videos are the only thing that help me revise easily with good examples thankyou so much <3

[syedbasimafzal]

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[dekucuredmydepression]

thank you!! my phy mock is tomorrow tytyty

[strangerthingsfan]

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[umaysmohammad]

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[skyjake]

This was really helpful with my physics homework. Thanks!

[thedarkknight]

watching this because I have an online physics class and my professor sucks at explaining this crap.

[violetcooper]

I hate Phisics but this just makes it so much more fun😂

[nagendrakumar]

Sir for spring force formula their must be negative sign but in your formula their is no negative sign why? I'm confused can you give clarity about that sir

[LilithLorenz]

Bruh the ad i got at the beginning called me out for looking this video up i-

[natu.d]

My physics teacher never mentioned the graph(3:45) before, weird. Anyway thank you

[dublestufedoreo]

do rubber bands follow hooke's law? I see many sources showing graphs that it does. But there are also graphs showing otherwise!!!! Help!!!

[mellow_swirl]

Where did they get 0.5 from all of a sudden

[mariloujagonal]

Please someone elaborate why 1/2 is in the formula?

[adeolaadenusi]

Why are there 2 equations, and how do we know which one to use?

[chita]

how do we get the extension with only the force and the spring constant?