Author Topic: ALL PHYSICS DOUBTS - POST HERE !!  (Read 231539 times)

Offline haris94

  • SF Senior Citizen
  • *****
  • Posts: 930
  • Reputation: 984
  • Gender: Male
Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1725 on: May 26, 2010, 09:59:21 am »
So can u do the conversion and show me please because i keep getting 6.4 ??
In both with and without???
Thanks

without conversion:
p=      (2*10^5)*80
                  25
u should get 640000 Pa

with conversion:
p=      (2*10^5)*(8*10^-5)                                  1 m3 = 1000000 cm3
                   (2.5*10^-5)
u should get 640000 Pa
              
WHAT WE DO IN LIFE ECHOES AN ETERNITY

Offline SoONa

  • SF Immigrant
  • **
  • Posts: 54
  • Reputation: 66
  • Gender: Female
Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1726 on: May 26, 2010, 09:59:47 am »
1.The circuit of a motor racing track is 3 km in length. In a race, a car goes 25 times round the
circuit in 30 minutes.
What is the average speed of the car?
A 75 km / hour
B 90 km / hour
C 150 km / hour
D 750 km / hour


2. A sample of a solid is heated for 12 minutes and its temperature noted every minute.
The results are shown in the table.
time / min 0 1 2 3 4 5 6 7 8 9 10 11 12
temperature / °C 11.5 16.1 22.1 31.0 31.1 31.1 31.1 31.3 45.0 65.2 66.2 66.3 66.3
How should the sample be described at the end of the 12 minutes?
A all solid
B in the process of melting
C all liquid
D in the process of boiling




thanks in advance

Offline Ivo

  • SF Geek
  • ****
  • Posts: 515
  • Reputation: 2767
Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1727 on: May 26, 2010, 10:00:00 am »
By the way, just wanted to know whether solving past papers for 1993-2000 is worth it for P1, or should I do all of 2003 onwards first.
Always willing to help!  8)
"In helping others, we shall help ourselves, for whatever good we give out completes the circle and comes back to us."

Offline The Golden Girl =D

  • Without Allah I'm nothing <3
  • Honorary Member
  • SF Overlord
  • *****
  • Posts: 13757
  • Reputation: 65532
  • Ain't Nothin worth your tears =D
    • www.thegoldengirl157.blogspot.com
Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1728 on: May 26, 2010, 10:00:31 am »
By the way, just wanted to know whether solving past papers for 1993-2000 is worth it for P1, or should I do all of 2003 onwards first.

2000 and onwards  ;)
« Last Edit: May 26, 2010, 10:02:53 am by the golden girl »
Verily, in the remembrance of Allah do hearts find rest(13:28)

Please, Don't forget to Include GG in your Prayers =D

Offline Weaam

  • Mad Alice
  • SF Geek
  • ****
  • Posts: 411
  • Reputation: 2264
  • Gender: Female
  • What if I spoke alien, fluently? O.o
Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1729 on: May 26, 2010, 10:00:46 am »
So can u do the conversion and show me please because i keep getting 6.4 ??
In both with and without???
Thanks

Tuleen?
- The man who smiles when things go wrong has thought of someone to blame it on. - Robert Bloch.
-I saw weird stuff in that place last night. Weird, strange, sick, twisted, eerie, godless, evil stuff... and I went in. - Homer
+ Rep me if i have been of any assistance to you ;D

Offline Girlie45

  • Newbie
  • *
  • Posts: 8
  • Reputation: 24
  • Gender: Female
Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1730 on: May 26, 2010, 10:01:26 am »
No Clue. CIE is evil.

LOL agreed.

Offline Ivo

  • SF Geek
  • ****
  • Posts: 515
  • Reputation: 2767
Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1731 on: May 26, 2010, 10:02:03 am »
1.The circuit of a motor racing track is 3 km in length. In a race, a car goes 25 times round the
circuit in 30 minutes.
What is the average speed of the car?
A 75 km / hour
B 90 km / hour
C 150 km / hour
D 750 km / hour


2. A sample of a solid is heated for 12 minutes and its temperature noted every minute.
The results are shown in the table.
time / min 0 1 2 3 4 5 6 7 8 9 10 11 12
temperature / °C 11.5 16.1 22.1 31.0 31.1 31.1 31.1 31.3 45.0 65.2 66.2 66.3 66.3
How should the sample be described at the end of the 12 minutes?
A all solid
B in the process of melting
C all liquid
D in the process of boiling




thanks in advance


Answer is 150 km/h, because 150/0.5 is that.

Always willing to help!  8)
"In helping others, we shall help ourselves, for whatever good we give out completes the circle and comes back to us."

Offline Dana

  • SF Immigrant
  • **
  • Posts: 87
  • Reputation: 122
Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1732 on: May 26, 2010, 10:02:18 am »
By the way, just wanted to know whether solving past papers for 1993-2000 is worth it for P1, or should I do all of 2003 onwards first.
I think you should do older ones, there was a qs that came in chem yesterday from may 2000. Copy paste. I think CIE thinks we'll like forget abt the older ones so they get more questions from previous years :P also take a look at gce

Offline Dana

  • SF Immigrant
  • **
  • Posts: 87
  • Reputation: 122
Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1733 on: May 26, 2010, 10:03:26 am »
I'll say, Phy P1 will be harder than Chem P1, but then P3 would be easier than Bio! :D
Hahaha :P Bio was the WORST exam ever!  >:( I hated it! And I'm pretty worried abt chem and physics p3 :/

Offline Ivo

  • SF Geek
  • ****
  • Posts: 515
  • Reputation: 2767
Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1734 on: May 26, 2010, 10:03:37 am »
1.The circuit of a motor racing track is 3 km in length. In a race, a car goes 25 times round the
circuit in 30 minutes.
What is the average speed of the car?
A 75 km / hour
B 90 km / hour
C 150 km / hour
D 750 km / hour


2. A sample of a solid is heated for 12 minutes and its temperature noted every minute.
The results are shown in the table.
time / min 0 1 2 3 4 5 6 7 8 9 10 11 12
temperature / °C 11.5 16.1 22.1 31.0 31.1 31.1 31.1 31.3 45.0 65.2 66.2 66.3 66.3
How should the sample be described at the end of the 12 minutes?
A all solid
B in the process of melting
C all liquid
D in the process of boiling




thanks in advance


D, I reckon for the second one.  Cos of latent heat for 2nd time, no change in temp for boiling or melting.
Always willing to help!  8)
"In helping others, we shall help ourselves, for whatever good we give out completes the circle and comes back to us."

Offline Ivo

  • SF Geek
  • ****
  • Posts: 515
  • Reputation: 2767
Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1735 on: May 26, 2010, 10:04:21 am »
Hahaha :P Bio was the WORST exam ever!  >:( I hated it! And I'm pretty worried abt chem and physics p3 :/

Chem P3, I wouldn't be worried about that, we've got half-term to revise.

Phy P3, I'm worried! :D

Bio P3, worst in 10 years, says it all!
Always willing to help!  8)
"In helping others, we shall help ourselves, for whatever good we give out completes the circle and comes back to us."

Offline SoONa

  • SF Immigrant
  • **
  • Posts: 54
  • Reputation: 66
  • Gender: Female
Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1736 on: May 26, 2010, 10:06:28 am »
Yup ur write for both thank u but 4 the 1st 1 wht did u do 2 get 150 i didnt get it maybee my nerves r getting 2 meee


Offline Ghost Of Highbury

  • O_o_O lala!
  • SF Farseer
  • *******
  • Posts: 4096
  • Reputation: 41428
  • Gender: Male
  • Namaskaram!
Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1737 on: May 26, 2010, 10:06:47 am »
D, I reckon for the second one.  Cos of latent heat for 2nd time, no change in temp for boiling or melting.

in the process of boiling??
divine intervention!

Offline Ivo

  • SF Geek
  • ****
  • Posts: 515
  • Reputation: 2767
Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1738 on: May 26, 2010, 10:07:56 am »
in the process of boiling??

Yeah, that's what I'm thinking, cos melting is 31 degree bit.
Always willing to help!  8)
"In helping others, we shall help ourselves, for whatever good we give out completes the circle and comes back to us."

Offline Dana

  • SF Immigrant
  • **
  • Posts: 87
  • Reputation: 122
Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1739 on: May 26, 2010, 10:08:15 am »
Chem P3, I wouldn't be worried about that, we've got half-term to revise.

Phy P3, I'm worried! :D

Bio P3, worst in 10 years, says it all!
Yea at least we've got abt 10 days to revise for chem :)
was your bio exam all about ecology and then like one thing abt reproduction? or did you have another variant that had absolutely nothing abt humans?