AS Physics P1 MCQs Preparation Thread.

[Soldier313]

wat is da explanation

no idea

hey people can someone help with this qn pleeeeeaaaaseee, we have been struggling with it for so long now

 

[Nibz]

no idea

hey people can someone help with this qn pleeeeeaaaaseee, we have been struggling with it for so long now

View attachment 12598

Point Q is momentarily stationary.
between trough and crest, motion of particles is downwards. So P downwards.

Option A.

 

[kinglynx]

******

 

[omg]

use the equation P=hdg since the liquids are in equilibrium the pressure of air (since it is open) on both of them is equal

so P/hg = d

for P p/2xg
for Q p/xg

now divide P by Q to get 0.5

THANKYOU SO VERY MUCH!!

 

[omg]

your all selfish bastards :/ go **** yourselves

whats wrong man?

 

[bloody_mary]

no idea

hey people can someone help with this qn pleeeeeaaaaseee, we have been struggling with it for so long now

View attachment 12598

answer is A because,
imagine the wave moving what will be the next position of P after moving for a while? (note that this is a transverse not stationary wave)
the position will be downwards and Q will take P "position" and be stationary

 

[Soldier313]

Point Q is momentarily stationary.
between trough and crest, motion of particles is downwards. So Q downwards.

Option A.

ummm i m slightly confused here: u said Q is downwards then u selected option A which says Q is stationary.....pleaaasee elaborate....thanx so much for helping

 

[bloody_mary]

your all selfish bastards :/ go **** yourselves

ok can you give me the lube then ? ಠ_ಠ

 

[bloody_mary]

THANKYOU SO VERY MUCH!!

welcome ♥

 

[MysteRyGiRl]

****

evry1 has had 2 repeat their questions ok? u cant use dis language

 

[Nibz]

ummm i m slightly confused here: u said Q is downwards then u selected option A which says Q is stationary.....pleaaasee elaborate....thanx so much for helping

Use your common sense, too. I said any particle b/w a trough and crest is downwards.

 

[MysteRyGiRl]

ummm i m slightly confused here: u said Q is downwards then u selected option A which says Q is stationary.....pleaaasee elaborate....thanx so much for helping

Q is momentarily stationary na

 

[Soldier313]

answer is A because,
imagine the wave moving what will be the next position of P after moving for a while? (note that this is a transverse not stationary wave)
the position will be downwards and Q will take P "position" and be stationary

sorry i still don't get it i mean the wave is moving from left to right so how can the next position of P be downwards???

 

[MysteRyGiRl]

sorry i still don't get it i mean the wave is moving from left to right so how can the next position of P be downwards???

nibz said between crest and trough da next movement will be downwards..

 

[bloody_mary]

sorry i still don't get it i mean the wave is moving from left to right so how can the next position of P be downwards???

ok go to this site http://www.acoustics.salford.ac.uk/feschools/waves/wavetypes.htm

and open the last animation and you know what i am talking about

 

[Nibz]

sorry i still don't get it i mean the wave is moving from left to right so how can the next position of P be downwards???

Because you are not getting a simple point.

 

[applepie1996]

nibz said between crest and trough da next movement will be downwards..

i dunt get it either shuldnt P move upwards???

 

[kinglynx]

IVE POSTED THE SAME SHIT, ABOUT 5 TIMES NOW AND YOU WONT ANSWER, SO DONT TELL ME TO ASK NICELY OR SAY THIS OR THAT, CAUSE IT OBVIOUSLY DONT WORK

 

[Soldier313]

nibz said between crest and trough da next movement will be downwards..

lol i think Nibz edited it coz first he had written Q downwards.......whatever the case i still don't get it.....did u? If yes pleeasee do help

 

[bloody_mary]

sorry i still don't get it i mean the wave is moving from left to right so how can the next position of P be downwards???

and this one is better

http://www.edumedia-sciences.com/en/a251-transverse-wave