GCSE Physics - Components #19

This video covers:
- The symbols of all the main components you need to know
- What LEDs are
- The graphs and uses of LDRs and thermistors

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 - Everything is relevant to your course!
Edexcel - Everything is relevant to your course!
OCR 21st Century - Everything is relevant to your course!
OCR Gateway - Everything is relevant to your course!

[Cognitoedu]

If you’d like to practise the material covered in this video, check out our platform at www.cognitoedu.org - it's totally free, and has been built to make learning and revision as easy as possible. The main features are:
- Lessons organised by topic, only the lessons relevant to your specific exam board and tier are shown.
- Automatic progress tracking. Progress bars tell you what you’re doing well at, and what you need to spend some time on.
- Practise quizzes so you can test your knowledge. You can quiz yourself on any combination of topics you like.
- A huge number of fully-hinted questions that take you step-by-step through some of the trickiest calculations & concepts.
- A comprehensive bank of past exam papers, organised both by year, and also by topic.

Amadeus & Tom

[husaamasam]

Cogniti thank you for your help, you have helped me from getting 4s and 5s to 7s and 8s keep up the good work 🎉

[amandawade]

They really need to play your videos in school instead of using those text books

[andreeaschipor]

Hey! Great series! Will u do videos on the rest of the GCSE topics such as Newton's laws, forces, astro etc ?

[_Dreamer_]

This was extremely useful!- but I have some confusion about the use of LDRs as night lights.

If the resistance shoots up in the darkness(at night) making the current hardly flow, doesn't that mean it won't light up at all? Isn't supposed to light up at night?

[zainabmansoor]

but didnt you say resistance is directly proportional to temperature? so wouldnt the thermistor work the opposite way?

[roseelectronics]

The resistance of thermistors are inversely proportional to temperature as described here.

[Shaiah]

A mistake here I think...
Ammeters are always connected like .. Positive to Positive terminal and negative to negative terminal.

[charleylinfield]

Thanks this really helped me with my science work

[rayyanhassan]

This channel is a lifesaver. Perfect if you suck at physics but still want the good grade

[necessaryterror]

Can you link the presentations used in this videos?

[l]

why is the resistance high when its cold in a thermistor, a why is the resistance low when its hot in a thermistor?

[faresabdela]

All my friends now use this I’ll be back when I get my results

[mahathivanchinathan]

I know I’m like a year late but liek this has helped me a lot with my homework and notes so... I hope you you will do more... plus like can you make topics that are more secondary school type cause sometimes I don’t even what y’all talking abt...
This is me from Singapore 🇸🇬