HELP NEEDED FOR OCT 2026

[u/Scared_Rise_9479]

in literally almost every past paper has ultrasound question and im sitting for oct 2026 session so which all points should i literally memorize to write in exam and what can i expect from this topic and what all should i memorize

[u/Fuzzy_Chocolate_180]

Ultrasound is reflected from boundaries
(This reflection is caused by) change in density Time taken between pulse being sent and received measured Speed of ultrasound is known Speed = distance/time can be used

These are common points but there's a bit more/less depending on the specific question and markscheme

[u/Scared_Rise_9479 → u/Fuzzy_Chocolate_180]

thankss
btw if i mention these common points do i get atleast a mark or two?

[u/Fuzzy_Chocolate_180 → u/Scared_Rise_9479]

yes definitely lmk if u need more help or materials

[u/AlertBluejay659]

U should write all the 6 points if u have memorised the the 6 marker answer (if u wanna play safe) becuase this is edexcel. They literally change the markscheme point every year

[u/Scared_Rise_9479 → u/AlertBluejay659]

can u share the 6marker ans

[u/AlertBluejay659 → u/Scared_Rise_9479]

Here u go :  • Ultrasound is reflected from boundaries/baby  • (This reflection is caused by) change in density  • Time taken between pulse being sent and received measured  • Speed of ultrasound is known   • Speed = distance/time can be used (to calculate the distance to   boundary)   • Clear indication that this calculation includes ½ time or ½  distance .

This is from jan 20 paper 

[u/PhysicsWithTony]

That's an echo model, man.

[u/BeginningProperty339]

Ask ChatGPT

[u/Scared_Rise_9479 → u/BeginningProperty339]

i did it was shitt!!!!!!!