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Advanced Higher Physics 2007 past paper question help?
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ah4p
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#1
can someone please explain the question I'm about to post under this
thnks v much in advacne i rlly appreciate any help
2007 AH Physics past paper
![Image]()
its just 7a)iv)A) I need help with
answer: max current is less
am I right in saying that the answer is the max current is less BECAUSE usually th number of turns would not affect max current but because the inductor has internal resistance the one with higher number of turns will have a greater resistance hence smaller current
thanks again
thnks v much in advacne i rlly appreciate any help
2007 AH Physics past paper
its just 7a)iv)A) I need help with
answer: max current is less
am I right in saying that the answer is the max current is less BECAUSE usually th number of turns would not affect max current but because the inductor has internal resistance the one with higher number of turns will have a greater resistance hence smaller current
thanks again
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ah4p
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#2
can anyone explain PART C of above question from 2007 AH physics past paper question 10
thnks vv much
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ah4p
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#3
2005 AH physics past paper
![Image]()
could anyone explain question 4c above?
the answer is 9.8 m/s^2
thanks
could anyone explain question 4c above?
the answer is 9.8 m/s^2
thanks
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CaitlinDy
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#4
What's the acceleration due to gravity?
What's the acceleration with which the sphere falls considering it is not fixed to the loudspeaker?
At greater accelerations, will the sphere stay in contact with the cap considering the acceleration of the sphere?
I'd give you the actual answer but it's probably more beneficial for you to figure it out from there.
What's the acceleration with which the sphere falls considering it is not fixed to the loudspeaker?
At greater accelerations, will the sphere stay in contact with the cap considering the acceleration of the sphere?
I'd give you the actual answer but it's probably more beneficial for you to figure it out from there.
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ah4p
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#5
could someone pplease expalin how to do part b
the answer is 0.99m
thanks
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ah4p
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#6
(Original post by CaitlinDy)
What's the acceleration due to gravity?
What's the acceleration with which the sphere falls considering it is not fixed to the loudspeaker?
At greater accelerations, will the sphere stay in contact with the cap considering the acceleration of the sphere?
I'd give you the actual answer but it's probably more beneficial for you to figure it out from there.
What's the acceleration due to gravity?
What's the acceleration with which the sphere falls considering it is not fixed to the loudspeaker?
At greater accelerations, will the sphere stay in contact with the cap considering the acceleration of the sphere?
I'd give you the actual answer but it's probably more beneficial for you to figure it out from there.
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ah4p
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ah4p
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#8
could someone please explain how to calculate the kinetic energy here at the rotor's running speed
the ANSWER is supposed to be 6.7×10^8J
![Image]()
I'm not getting that answer though
this is what I'm doing
![Image]()
thansk for any help
the ANSWER is supposed to be 6.7×10^8J
I'm not getting that answer though
this is what I'm doing
thansk for any help
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SteelManatee
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#9
(Original post by ah4p)
![Image]()
can anyone explain PART C of above question from 2007 AH physics past paper question 10
thnks vv much
can anyone explain PART C of above question from 2007 AH physics past paper question 10
thnks vv much
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I am Ace
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#10
GUYS THIS IS IMPOSSIBLE TO KEEP UP WITH, PLEASE POST THESE ON THE AH PHYS THREAD
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I am Ace
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#11
How does this affect the time?
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I am Ace
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#12
(Original post by ah4p)
![Image]()
can anyone explain PART C of above question from 2007 AH physics past paper question 10
thnks vv much
can anyone explain PART C of above question from 2007 AH physics past paper question 10
thnks vv much
But the intensity of the incident wave remains the same due to be microphone not moving,
Hence when the waves interfere there will be a greater amplitude difference hence this minimum won't be as much of a cancellation therefore louder
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#13
(Original post by SheLikeTheMango)
Yeah could someone explain this one? I do OCR physics B however this topic is tested in unit 2 so any explanation helps
Yeah could someone explain this one? I do OCR physics B however this topic is tested in unit 2 so any explanation helps
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I am Ace
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#14
Since there is a vertical component to this motion, what motion from higher are we dealing with?
Remember SUVAT
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#15
(Original post by ah4p)
can someone please explain the question I'm about to post under this
thnks v much in advacne i rlly appreciate any help
2007 AH Physics past paper
![Image]()
its just 7a)iv)A) I need help with
answer: max current is less
am I right in saying that the answer is the max current is less BECAUSE usually th number of turns would not affect max current but because the inductor has internal resistance the one with higher number of turns will have a greater resistance hence smaller current
thanks again
can someone please explain the question I'm about to post under this
thnks v much in advacne i rlly appreciate any help
2007 AH Physics past paper
its just 7a)iv)A) I need help with
answer: max current is less
am I right in saying that the answer is the max current is less BECAUSE usually th number of turns would not affect max current but because the inductor has internal resistance the one with higher number of turns will have a greater resistance hence smaller current
thanks again
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ah4p
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#16
(Original post by I am Ace)
Yes it's because it does have an internal resistance
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Yes it's because it does have an internal resistance
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so is this always true for inductors that the more turns they have the greater internal resisatnce (if it has resistance)?
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SteelManatee
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I am Ace
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#18
(Original post by ah4p)
thanks
so is this always true for inductors that the more turns they have the greater internal resisatnce (if it has resistance)?
thanks
so is this always true for inductors that the more turns they have the greater internal resisatnce (if it has resistance)?
Also resistance for inductors and capacitors is called reactance
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#19
(Original post by SheLikeTheMango)
Thanks, also for b part i, is there a node formed at the loudspeaker and a node formed at the reflector? I can't figure out if this is the fundamental frequency so can't work out the wavelength
Thanks, also for b part i, is there a node formed at the loudspeaker and a node formed at the reflector? I can't figure out if this is the fundamental frequency so can't work out the wavelength
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