# OCR A G482 9th June 2014Watch

#1
2
#2
really awesome powerpoint below
1
5 years ago
#3
Have you done any practicals in Physics yet?
0
#4
(Original post by maya997)
Have you done any practicals in Physics yet?
i've done one for mechanics already and my next one is on monday for electricity

have you done any?
0
#5
boardworks powerpoint on some electricity topics
0
5 years ago
#6
I'm doing this exam
0
#7
(Original post by Vorsah)
I'm doing this exam
hi!

can you explain to me how a potential divider circuit can be used to produce a variable pd?
0
5 years ago
#8
(Original post by Infinity_4652)
the PSAs?
i've done one for mechanics already, but i flopped it
my next one is on monday for electricity

have you done any?
I'm doing the electricity one- determining the resistance of a filament lamp- on monday as well.
0
#9
(Original post by maya997)
I'm doing the electricity one- determining the resistance of a filament lamp- on monday as well.
you're doing resistance?

mine is to investigate the brightness of the filament lamp
0
5 years ago
#10
(Original post by Infinity_4652)
hi!

can you explain to me how a potential divider circuit can be used to produce a variable pd?
Potential dividers divide up the voltage so parts of the circuit only receive the voltage they require.

Potential dividers usually consists of two or more resistors arranged in series

Source: bitesize
0
5 years ago
#11
How did you find the electricity practical? I did it today, but I have mixed feelings about how it went
0
#12
(Original post by newburn)
x
post 1 above - a pdf revision document and the st ambrose college physics stuff
post 2 above - g482 ppt
0
#13
(Original post by maya997)
How did you find the electricity practical? I did it today, but I have mixed feelings about how it went
i found it really easy and i got my results back on tuesday (8/10 marks)

0
#14
below is a pdf document
i had to break it down into bits because i couldn't upload it when it was too big
0
5 years ago
#15
(Original post by Infinity_4652)
i found it really easy and i got my results back on tuesday (8/10 marks)

I thought it went ok, but my ammeter readings were messed up
0
#16
(Original post by maya997)
I thought it went ok, but my ammeter readings were messed up
0
5 years ago
#17
Hi guys! I'm also taking this exam! I'm going through the quantum physics and I'm finding it hard to understand how to determine Planck constant. (Haven't really done the experiments in school and I'm going ahead of the class). So if anyone knows a source that clearly explains it let me know.

thanks!
0
5 years ago
#18
I've looked a the link at the top for the Planck experiment but I still don't see why the voltage threshold has anything to do with Planck constant.

Any help?
0
#19
(Original post by a123a)
I've looked a the link at the top for the Planck experiment but I still don't see why the voltage threshold has anything to do with Planck constant.

Any help?

you're referring to the last bullet point of this pdf document, so the 4th page should help

i haven't done this topic yet myself, so my apologies if the pdf isn't helpful
0
5 years ago
#20
Hey guys I'm also doing this exam, did my first past paper yesterday and a C which I am happy with at the moment although I am aiming for an A

Posted from TSR Mobile
0
X

new posts
Latest
My Feed

### Oops, nobody has postedin the last few hours.

Why not re-start the conversation?

see more

### See more of what you like onThe Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

### University open days

• Bournemouth University
Wed, 31 Jul '19
• Staffordshire University
Wed, 7 Aug '19
• University of Derby
Foundation Open Event Further education
Wed, 7 Aug '19

### Poll

Join the discussion

#### Are you tempted to change your firm university choice on A-level results day?

Yes, I'll try and go to a uni higher up the league tables (145)
17.64%
Yes, there is a uni that I prefer and I'll fit in better (74)
9%
No I am happy with my course choice (485)
59%
I'm using Clearing when I have my exam results (118)
14.36%