You are Here: Home >< Physics

# AQA Physics Unit 1 PHYA1 20th May 2013 Watch

1. (Original post by Lukerobbo)
What experiment could you do related to the photoelectric effect ??
not an experiment but a long question on that topic. like how does the photoelectric effect explain the particle-like nature of light

2. Wait I've found it out myself, here is the attachment for anyone wondering...

Posted from TSR Mobile
3. I don't think Ekmax= hf - workfunction 6 marker question will come us because the textbook says 'the details of this experiment are not required for your AS exam'
4. Good luck tomorrow peeps
5. (Original post by BenChard)
my weakest topic, I hate it.
I agree, Im hoping the essay question will be on something else
6. (Original post by Loopset)
not an experiment but a long question on that topic. like how does the photoelectric effect explain the particle-like nature of light
So if photoelectric effect is the 6 marker then would you be expected to explain the processs of it
7. Wait for the internal resistance calculation, shouldn't the terminal pd be constant, so voltage is always the same?...

Posted from TSR Mobile
8. (Original post by Tuya)

Wait I've found it out myself, here is the attachment for anyone wondering...

Posted from TSR Mobile
is that voltmeter measuring the voltage across battery
9. Can someone tell me how to do question 2b & 6b thanks
10. (Original post by Micheal123456)
Can someone tell me how to do question 2b & 6b thanks
what? from past paper?
11. (Original post by BenChard)
is that voltmeter measuring the voltage across battery
Yes, I'm a little confused on why terminal pd ever changes though...

Posted from TSR Mobile
12. (Original post by Tuya)
Yes, I'm a little confused on why terminal pd ever changes though...

Posted from TSR Mobile
Think of terminal pd as = voltage (IF NO INTERNAL RESISTANCE)
Same thing in that scenario.
If there is internal resistance however then terminal pd is = voltage to circuit AFTER lost volts on internal resistance.

So if internal resistance is higher than terminal pd is changing and is lower.
13. (Original post by Tuya)
Yes, I'm a little confused on why terminal pd ever changes though...

Posted from TSR Mobile
I just can't get my head around it check this out see if you can, or anyone?

14. (Original post by BenChard)
I just can't get my head around it check this out see if you can, or anyone?

What do you want to know?
15. (Original post by StalkeR47)
What do you want to know?
how they got the graph would be a start when resistance isn't even a factor but that's what they're changing ahh
16. (Original post by BenChard)
how they got the graph would be a start when resistance isn't even a factor but that's what they're changing ahh
Your changing the resistance so you can get different currents and voltages, so resistance can be plotted where the internal resistance is the gradient of the line.

Posted from TSR Mobile
17. (Original post by BenChard)
how they got the graph would be a start when resistance isn't even a factor but that's what they're changing ahh
voltmeter is not measuring lost volt. it is measuring the voltage at the resistor. however, as the current increases, the lost volt inside the battery also increases so the pd across battery terminal decreases. and therefore, the voltmeter reads lower value of voltage at the resistance. Again, this is because more voltage is being used up in the battery (increase in lost volt). Did you get this?
18. Does anyone know the difference between writing the strong force/nuclear force/interaction? Is there a difference? (same goes for the weak one)
19. (Original post by dunkdeboffin)
Does anyone know the difference between writing the strong force/nuclear force/interaction? Is there a difference? (same goes for the weak one)
Strong nuclear force/strong interaction are the same. nuclear force is incorrect because you are not stating strong or weak.
20. (Original post by dunkdeboffin)
Does anyone know the difference between writing the strong force/nuclear force/interaction? Is there a difference? (same goes for the weak one)
Strong force binds quarks together
Residual strong force/strong nuclear force binds proton and neutrons together.

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: May 14, 2014
Today on TSR

### What is the latest you've left an assignment

And actually passed?

### Simply having a wonderful Christmas time...

Discussions on TSR

• Latest
• ## See more of what you like on The Student Room

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

• Poll
Useful resources

Can you help? Study help unanswered threadsStudy Help rules and posting guidelinesLaTex guide for writing equations on TSR

## Groups associated with this forum:

View associated groups
Discussions on TSR

• Latest
• ## See more of what you like on The Student Room

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

• The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.