Physics ppr 1 Discussion Here only!

[robot_avenger]

Hey guys it's been 24 hours since the ppr 1 physics...How'd we all do?

[Christy]

tricky .. but alright

[mr_scholes]

if u widen the barometer tube, will the reding change?

[Christy]

ya i guess .. i did the lower one done remember if its B or C .. cause atmospheric pressure doesnt change only the baro is wider so it changes

[sarcasm]

can we pls use only one thread?/
the thukon one,, its more developed anyway

[halosh92]

the height or mercury only depend on the vertical height..so i put as B same length...as its height is not changing i dono?

[robot_avenger]

the height or mercury only depend on the vertical height..so i put as B same length...as its height is not changing i dono?

Ur right...thr's no relationship between cross-sectional area and the height of the mercury....
The formula for Pressure in Fluids is = hdg...Height gravity and gravity.....since gravity is the same and so is the density and so is atmospheric pressure height wont change

[halosh92]

the height or mercury only depend on the vertical height..so i put as B same length...as its height is not changing i dono?

Ur right...thr's no relationship between cross-sectional area and the height of the mercury....
The formula for Pressure in Fluids is = hdg...Height gravity and gravity.....since gravity is the same and so is the density and so is atmospheric pressure height wont change

  thxxx...wat did u do for the echo the guy standing on the cliff??

[zmnigcse]

Yes, the reading is at the same height. (:

The paper was really tricky man  

And erm, are both the circuit breaker and the fuse in the live wire?
And what was the answer to that fire question?  

[Diablo]

the height or mercury only depend on the vertical height..so i put as B same length...as its height is not changing i dono?

Ur right...thr's no relationship between cross-sectional area and the height of the mercury....
The formula for Pressure in Fluids is = hdg...Height gravity and gravity.....since gravity is the same and so is the density and so is atmospheric pressure height wont change

100% Correct.....

Guys what did you write for the fuse question and the other one regarding the placement of a fuse or a circuit breaker?

For fuse I chose 1A ... not so sure and for the other question I chose the position of both the fuse and the circuit breaker at X (live wire)... am I correct 

The echo for the click was the ZY position (not sure of the abbriviations) but it was the one with the short distant wall.

For the copper&wood question... I didn't choose copper at all because it's a good conductor of heat and the whole thing will be really hot .. so it was obviously the other end of the wood?

[....]

the height or mercury only depend on the vertical height..so i put as B same length...as its height is not changing i dono?

Ur right...thr's no relationship between cross-sectional area and the height of the mercury....
The formula for Pressure in Fluids is = hdg...Height gravity and gravity.....since gravity is the same and so is the density and so is atmospheric pressure height wont change

100% Correct.....

Guys what did you write for the fuse question and the other one regarding the placement of a fuse or a circuit breaker?

For fuse I chose 1A ... not so sure and for the other question I chose the position of both the fuse and the circuit breaker at X (live wire)... am I correct 

The echo for the click was the ZY position (not sure of the abbriviations) but it was the one with the short distant wall.

For the copper&wood question... I didn't choose copper at all because it's a good conductor of heat and the whole thing will be really hot .. so it was obviously the other end of the wood?

yup, i got the same answers as you 

[halosh92]

the height or mercury only depend on the vertical height..so i put as B same length...as its height is not changing i dono?

Ur right...thr's no relationship between cross-sectional area and the height of the mercury....
The formula for Pressure in Fluids is = hdg...Height gravity and gravity.....since gravity is the same and so is the density and so is atmospheric pressure height wont change

100% Correct.....

Guys what did you write for the fuse question and the other one regarding the placement of a fuse or a circuit breaker?

For fuse I chose 1A ... not so sure and for the other question I chose the position of both the fuse and the circuit breaker at X (live wire)... am I correct 

The echo for the click was the ZY position (not sure of the abbriviations) but it was the one with the short distant wall.

For the copper&wood question... I didn't choose copper at all because it's a good conductor of heat and the whole thing will be really hot .. so it was obviously the other end of the wood?

yup, i got the same answers as you 

yup its all correct

[robot_avenger]

the height or mercury only depend on the vertical height..so i put as B same length...as its height is not changing i dono?

Ur right...thr's no relationship between cross-sectional area and the height of the mercury....
The formula for Pressure in Fluids is = hdg...Height gravity and gravity.....since gravity is the same and so is the density and so is atmospheric pressure height wont change

100% Correct.....

Guys what did you write for the fuse question and the other one regarding the placement of a fuse or a circuit breaker?

For fuse I chose 1A ... not so sure and for the other question I chose the position of both the fuse and the circuit breaker at X (live wire)... am I correct 

The echo for the click was the ZY position (not sure of the abbriviations) but it was the one with the short distant wall.

For the copper&wood question... I didn't choose copper at all because it's a good conductor of heat and the whole thing will be really hot .. so it was obviously the other end of the wood?

yup, i got the same answers as you 

yup its all correct

I agree with you 10000000% ...Nice Job 

[Sweet_03]

Meee ..

For the barometer tube , First i chose B .. then rubbed it and chose C : (
For the echo , i chosed XW(im not sure about the letters) .. but its the shortest wall under the source of sound
For the Fuse .. The circiut breaker in the live wire ( at X ) .. and the fuse at y ..
For the cooper .. me too .. i chosed the other end of the wood

indeed , it was tricky

[unknown]

wht was d ans to d fuse q tht 0.25a n al tht i dnt remember d q exactly n ya also d ruler 1 nearest mm i chose as 0.764
i feel barometer is b bcz cross section area doesnt affect d pressure
d fuse n live wire thingy was x n x i guess mostly correct
n ya wht was tht magnet n tht p q
i wrote c p=south n q=north n ya ne more doubts plz put up asap