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7. c . (i) p.d = 12-7= 5 v
(ii) the total voltage of power supply equals the sum of p.d across all components
Hope that helps
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Physics, Chemistry and Biology: Post your doubts here!
- Thread starter semsemhosam
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7. c . (i) p.d = 12-7= 5 v
(ii) the total voltage of power supply equals the sum of p.d across all components
Hope that helps
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yup thankz btw later on i got da answer but thanks 4 helpin>>>>>>>>>
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URW
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YUP
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Read the question carefully... The student measures time t for 10 oscillations... You have to give the time period... So divide the time he has recorded by 10 for each of the t values...
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When the human body respires (inhales and exhales), gas exchange takes place (oxygen comes in, carbon dioxide goes out); the air that is inhaled but does not take part in gas exchange is called dead space.Hi,
I signed up just to ask a question here
My question is regarding physics
What is meant by dead space? I keep reading this on and on when I check the mark scheme, especially in paper 6.
Thanks in advance.
Aya
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T=t/n
where n is the no.of oscillations and t is the total time
cuz , for example , say you went to a shop to buy pens, your spent $10 , and you bought 5 pens , how much is one pen ,
similar to that , the pendulum made 10 oscillations , and it took t s for the whole 10 oscillations , so 10/t=T
hope that helps
best of luck
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thank sooo much! but this is sooo unorganised, and im not even organised myself...... but dont you have only igcse notes?
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thank sooo much! but this is sooo unorganised, and im not even organised myself...... but dont you have only igcse notes?
http://www.astarmathsandphysics.com/igcse_physics_notes_menu.html
http://greennotes.com.sg/physics/
http://www.physicsatweb.com/index_rev.php?id=igcse
http://crampuppy.com/IGCSE/physics/
I've already checked those websites, but its easier to understand if a student made it....
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Just wondering, what year paper was this? Cuz ‘dead space’ is a part of biology (physiology, to be specific), not physics.Hi,
I signed up just to ask a question here
My question is regarding physics
What is meant by dead space? I keep reading this on and on when I check the mark scheme, especially in paper 6.
Thanks in advance.
Aya
I mean, you had a bio doubt in a physics paper! ;p
Actually, it was written on the mark scheme not the question paper.
Anyhow here it is: http://www.xtremepapers.com/CIE/Cambridge IGCSE/0625 - Physics/0625_w05_ms_6.pdf
but to be honest I still can't relate your answer to that of the mark scheme....
Anyhow here it is: http://www.xtremepapers.com/CIE/Cambridge IGCSE/0625 - Physics/0625_w05_ms_6.pdf
but to be honest I still can't relate your answer to that of the mark scheme....
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I see why.
Odd, the question asked was to measure the angle shown in the diagram using the given protractor – it has absolutely nothing to do with ‘dead space’ :/ Or maybe the term has various meanings.
The only other dead space I know is a video game, lol.
Regardless, you can still attempt that question without the need of ‘dead space’ (whatever that means, here
). All you gotta do is align the 360 degree protractor parallel to the bench (it’ll be in between 0 – 180 degrees), such that the centre point of the protractor (the small ‘line’, right in the middle of it) coincides with the zero end of the rule taped to the bench. The angle shown on the protractor (which will be more than 180 degrees) – 180 = angle θ.
Btw – you have to draw the diagram. – (It actually becomes easier that way!)