Official OCR New Spec AS Level Physics: Depth in physics - 9th of May

I don't think so personally but it could still come up. If it does, i would suspect it to involve the masses of the objects joining up at some point during the collision.

Good Luck!

Reply 41

maxross

1

Original post by TheRealLBA

Was there any repetitions in the depth paper of biology? :smile:

Nope, i do Biology was easy to predict basically exactly what came up. Everything that wasn't tested in Bredth came up in Depth. Handy to know, but have completely forgotten what can up in our Physics Bredth! Anyone got any predictions?

Reply 42

TheRealLBA

4

Original post by maxross

Nope, i do Biology was easy to predict basically exactly what came up. Everything that wasn't tested in Bredth came up in Depth. Handy to know, but have completely forgotten what can up in our Physics Bredth! Anyone got any predictions?

- projectiles and suva
- triangle of forces, objects in equilibrium etc.-
terminal velocity
- Moments
- power and energy
- young modulus(whole chapter)
- potential divider
- Double slit interference
- refraction
-polarisation
-Einsteins photoelectric effect equation

Reply 43

mahmzo

17

Original post by Ishea16

How do you find the resistivity of a wire and what graph would you plot??

row = RA/L

A = pie r^2 (via micrometer)
Set up a circuit varying the length of wire.
Find P.D and current through the varying length.
Use R = V/I to find resistances at the length
Plot a graph of R against L.
Find the gradient and multiply by the CSA to give resistivity.

Reply 44

maxross

1

Original post by thereallba

- projectiles and suva
- triangle of forces, objects in equilibrium etc.-
terminal velocity
- moments
- power and energy
- young modulus(whole chapter)
- potential divider
- double slit interference
- refraction
-polarisation
-einsteins photoelectric effect equation

thank youuuuu

Reply 45

TheRealLBA

4

Original post by TheRealLBA

- projectiles and suva
- triangle of forces, objects in equilibrium etc.-
terminal velocity
- Moments
- power and energy
- young modulus(whole chapter)
- potential divider
- Double slit interference
- refraction
-polarisation
-Einsteins photoelectric effect equation

*all the stuff that didn't come up i guess XD

Reply 46

blackcurrent101

17

Original post by mahmzo

row = RA/L

A = pie r^2 (via micrometer)
Set up a circuit varying the length of wire.
Find P.D and current through the varying length.
Use R = V/I to find resistances at the length
Plot a graph of R against L.
Find the gradient and multiply by the CSA to give resistivity.

thank you!
I'm also stuck on how frequency varies with Length/ Tension and moun??
something to do with the equation f=1/2l (square root T/moun) :redface:

can you help please? :smile:

Reply 47

physicsamor

20

Can someone explain how to answer this question step by step:

The photocell is connected to a 12V supply and a sensitive ammeter which can detect a current of 1x10^-9A. Only 5% of the photons of average energy 4×10^-19J incident on the plate A cause electrons to be released. Calculate the minimum light energy that plate A must absorb per second for the photocell circuit to detect a current.

Reply 48

physicsamor

20

Also what sort of experiments could they ask you on potential dividers?

Reply 49

physicsamor

20

Did we get asked about plancs constant on paper 1? (I cant remember) because otherwise thats a potential 6 marker

Reply 50

mahmzo

17

Original post by physicsamor

Did we get asked about plancs constant on paper 1? (I cant remember) because otherwise thats a potential 6 marker

That question was a 6 marker on the specimen, I doubt they will put it again. I am guessing Youngs double slit 100%

Reply 51

mahmzo

17

Original post by Ishea16

thank you!
I'm also stuck on how frequency varies with Length/ Tension and moun??
something to do with the equation f=1/2l (square root T/moun) :redface:

can you help please? :smile:

What is moun?

Reply 52

blackcurrent101

17

Original post by mahmzo

What is moun?

i actually dunno if you call it moun in this experiment but it looks like a moun from particle physics
but it in the experiment it is equal to mass per unit length (m/l) :smile:

Reply 53

HopelessMedic

19

Anyone got any tips on how to approach circuit questions? I struggle with them the most even tho I have a good grasp of the concepts and rules. Cheers :smile:

Reply 54

mahmzo

17

Original post by HopelessMedic

Anyone got any tips on how to approach circuit questions? I struggle with them the most even tho I have a good grasp of the concepts and rules. Cheers :smile:

Well it depends on what they ask you. Usually find the current around the whole circuit then, I you have a resistor in series find the pd of that. After using Kirchoffs laws you can find Resistors in parallel etc