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Sqa higher physics

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Reply 20
Avatar for Jeff548
Jeff548
3
Original post by Asklepios
Don't know if they have anything on uncertainties, but a couple of SQA physics youtube channels

https://www.youtube.com/user/glesgaphysics

https://www.youtube.com/user/tomctutor


I love glesgaphysics!!!! Best channel ever!

Unfortunately no uncertainties on either :frown:
Original post by Jeff548
I love glesgaphysics!!!! Best channel ever!

Unfortunately no uncertainties on either :frown:


Pure quality like

[video="youtube;6nkuxVZ0qPE"]https://www.youtube.com/watch?v=6nkuxVZ0qPE[/video]
Reply 22
Avatar for Jeff548
Jeff548
3
Original post by Asklepios
Pure quality like

[video="youtube;6nkuxVZ0qPE"]https://www.youtube.com/watch?v=6nkuxVZ0qPE[/video]


Don't get it...

No Uncertainties hope for my prelim I guess?
Original post by Jeff548
Don't get it...

No Uncertainties hope for my prelim I guess?


http://www.educationscotland.gov.uk/Images/uncertainties_tcm4-121145.pdf
Original post by Asklepios
Pure quality like

[video="youtube;6nkuxVZ0qPE"]https://www.youtube.com/watch?v=6nkuxVZ0qPE[/video]


Lmao is this how you learn your molecular shite
Does anybody have any advice and/or tips on how to effectively study physics to achieve an A? Also any tips on taking notes for each unit and how to take good notes that are useful will be much appreciated?
Reply 26
Avatar for Jeff548
Jeff548
3
ImageUploadedByStudent Room1454439488.543822.jpg

Please help on this question, ASAP!!!!!!!!!

I understand it is impulse but stuck which numbers to plug in as I got 514.5N and apparently it's 9800N!!!!


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Reply 27
Avatar for Jeff548
Jeff548
3
Asap help please guys! Vkjgvkvlfkdhsgzdxgcvhbhjki;oujhytre!!!!!!!!!!!!!!!!!!!!!!!!!
Reply 28
Avatar for PTS_99
PTS_99
10
Well for a) I got 4.8ms-1, b) the collision is inelastic and for c) I got 13800N (which evidently isn't right if you say the marking scheme says 9800N), and I'm not sure where you got 514.5N from if I'm honest.

Maybe someone else would like to have a go?
Reply 29
Avatar for Jeff548
Jeff548
3
Original post by PTS_99
Well for a) I got 4.8ms-1, b) the collision is inelastic and for c) I got 13800N (which evidently isn't right if you say the marking scheme says 9800N), and I'm not sure where you got 514.5N from if I'm honest.

Maybe someone else would like to have a go?


Yeah, thanks though, this might be right?|

Can anyone confirm this?
Reply 30
Avatar for Mystery.
Mystery.
OP
21
Original post by Jeff548
Yeah, thanks though, this might be right?|

Can anyone confirm this?

Is it exactly 9800 N because I'm getting 9855N?
Reply 31
Avatar for Jeff548
Jeff548
3
Original post by Mystery.
Is it exactly 9800 N because I'm getting 9855N?


Answers could be wrong. Could you walk me through what you did?
Original post by Jeff548
Answers could be wrong. Could you walk me through what you did?


For part (a), use p=mv, keeping in mind total momentum before = total momentum after

For part (b), calculate total kinetic energy of the system to find out if its conserved or not

For part (c), use Ft = mΔv

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