General paper discussion

[Kamihus]

Questions need answers:
1)the resultant graph what was it
2) what was the distance in speed time graph
3) a lorry of 10000kg and 5000kg sand question
and the 2250*200/300W( values something like that
4) and the Question with same p.d and current of P and Q circuits!
5) the pressure question in which a diagram was made
6)again the pressure question which includes the value and to find the incorrect one
7) and the force on a wire with north_ south poles
8) magnetic field of the magnets
9) the screeing process which included unwanted lines
10) the radioactivity minutes!
11)The last question about atoms experiment
12)the pd of a a resistor with decrese increase remain 0 and remains 12 options
13) the danger of five electrical appliances
14) the image in which real virtual was mentioned
15) the chage of energy of K.E, G.E and of heat
16) the constant speed of centripetal force
17) the balanced force direction and speed
18)the stability of child
19) the pressure of liquid where"X" was mentioned!
20)The heating of liquids
21) the rubbing of rod with hand one question
22) momevent of longitunal waves
23) the speed like 3.0x10^8 values question
24) the filament breakage
25) the extension of the wire
26) the wave motion question
27)the parachute terminal question
just remembered this much! now answers plz

1)resultant was A (diagonal towards top right)
6)A it was,repeated question
9)iron
11)was D (tiny particles) i did C
13)heating in socket
14)virtual,small size
15)G.P to Kinetic to Thermal
16)Towards center
18)A, Longest straight chair
19)C, the most depth
22)sound
26)ripple/water something like this
27)D, straight line

 

[areela hassan]

Physics Paper 12 MCQ answers
01-A
02-A
03-D
04-B
05-C
06-B
07-B
08-A
09-A
10-D
11-C
12-A
13-B
14-D
15-D
16-A
17-D
18-A
19-B
20-A
21-A
22-D
23-D
24-B
25-D
26-B
27-D
28-D
29-C
30-C
31-D
32-D
33-B
34-A
35-C
36-D
37-A
38-A
39-D
40-D
I hope they are correct

O_O dude how can u remember all of them ??

 

[Kamihus]

O_O dude how can u remember all of them ??

i saved them in my calculator

 

[thementor]

Exact answers
Q1. 40m/s
Q2. 500N
Q3. work=27J
Power=9W
Q4 & Q5 no numerical
Q6.(a) 2-12V range of voltages
current in lamp at potential difference of 6V=0.3A
last part current in ammeter=0.65A
Q7. No numerical only magnetic field lines diagram and theory
Q8.Either Theory
Or Logic Gate was NOT, table for logic gate...last part for increasing frequency, change was reduce capactiance of capacitors
Q9. pressure of water =1800pa

Q11. last question numerical Power =50.4W
kwh 0.00675kWh

For QUESTION 4
(a) Arranging: gamma rays, Visible Light, Infra red
(b) Microwaves
(d) advantage of satellite:no loss of signal, microwaves can travel in space.

 

[thementor]

i saved them in my calculator

they werent all numerical

 

[thementor]

Questions need answers:
1)the resultant graph what was it
2) what was the distance in speed time graph
3) a lorry of 10000kg and 5000kg sand question
and the 2250*200/300W( values something like that
4) and the Question with same p.d and current of P and Q circuits!
5) the pressure question in which a diagram was made
6)again the pressure question which includes the value and to find the incorrect one
7) and the force on a wire with north_ south poles
8) magnetic field of the magnets
9) the screeing process which included unwanted lines
10) the radioactivity minutes!
11)The last question about atoms experiment
12)the pd of a a resistor with decrese increase remain 0 and remains 12 options
13) the danger of five electrical appliances
14) the image in which real virtual was mentioned
15) the chage of energy of K.E, G.E and of heat
16) the constant speed of centripetal force
17) the balanced force direction and speed
18)the stability of child
19) the pressure of liquid where"X" was mentioned!
20)The heating of liquids
21) the rubbing of rod with hand one question
22) momevent of longitunal waves
23) the speed like 3.0x10^8 values question
24) the filament breakage
25) the extension of the wire
26) the wave motion question
27)the parachute terminal question
just remembered this much! now answers plz

1.A
2.dont remember the letter....answer was 25m maybe
3.lorry question : 2500000 (C) many people answered D...that was wrong.
4.p.d P, current Q
5.Pressure no change, volume increase (A)
6.A
7.A (repeated question June 2003)

9.Iron
10.24 min
11.Nucleus small.
13.Overheating
14 virtual and not inverted
15.G.P.E to Ke+heat
16.towards center
17.direction and speed unchanged.
18.A (first child)
19.C wrote D :'(
21.Polythene rod with wollen duster...max charge.
23. 30000m
27.D
these are the ones i remmber...i

 

[thementor]

1)resultant was A (diagonal towards top right)
6)A it was,repeated question
9)iron
11)was D (tiny particles) i did C
13)heating in socket
14)virtual,small size
15)G.P to Kinetic to Thermal
16)Towards center
18)A, Longest straight chair
19)C, the most depth
22)sound
26)ripple/water something like this
27)D, straight line

dude for 14. not small size....plane mirror produces exact same size image...the asnwer was virtual and not inverted....
and it was GPE To Kinetic+thermal, not gpe to kinetic to thermal

 

[Mustafa Malik]

dude for 14. not small size....plane mirror produces exact same size image...the asnwer was virtual and not inverted....
and it was GPE To Kinetic+thermal, not gpe to kinetic to thermal

i have a theory that in broken filament voltage across the resistor will increase cux:
1 Resistance will increase so voltage will increase.
2 voltage drop will be greater as filament is broken.

 

[thementor]

i have a theory that in broken filament voltage across the resistor will increase cux:
1 Resistance will increase so voltage will increase.
2 voltage drop will be greater as filament is broken.

there was no resistor

 

[Mohammad Farzanullah]

1.A
2.dont remember the letter....answer was 25m maybe
3.lorry question : 2500000 (C) many people answered D...that was wrong.
4.p.d P, current Q
5.Pressure no change, volume increase (A)
6.A
7.A (repeated question June 2003)

9.Iron
10.24 min
11.Nucleus small.
13.Overheating
14 virtual and not inverted
15.G.P.E to Ke+heat
16.towards center
17.direction and speed unchanged.
18.A (first child)
19.C wrote D :'(
21.Polythene rod with wollen duster...max charge.
23. 30000m
27.D
these are the ones i remmber...i

can u plz tell why was D wrong in lorry question?

 

[thementor]

can u plz tell why was D wrong in lorry question?

pretty simple
it said and I quote: A lorry wighing 10000kg carries 5000kg of sand to a hill-top 50 m high. It unloads the sand and then returns to the bottom of the hill.
What is the OVERALL gain in potential energy.
Ans: Now when the lorry travels up with sand total mass 15000kg G.P.E=mgh=15000kg * 10N/kg * 50m = 7500000J
it then returns without sand so the mass is 10000kg and the loss in G.P.E is 10000kg * 50m * 10N/kg =5000000J
it said overall gain in potential energy...it didnt mention any particular object's gain..in potential energy...it just said overall gain in potential energy...
so 7500000J-5000000J=2500000J
which was option C

 

[Mustafa Malik]

there was no resistor

sorry voltmeter.

 

[thementor]

oh

sorry voltmeter.

oh then no...bcoz resistance wont increase

 

[Mustafa Malik]

oh
oh then no...bcoz resistance wont increase

why no? overall resistance increases as there is a a fault or a damage

 

[Mohammad Farzanullah]

Physics Paper 12 MCQ answers
01-A
02-A
03-D
04-B
05-C
06-B
07-B
08-A
09-A
10-D
11-C
12-A
13-B
14-D
15-D
16-A
17-D
18-A
19-B
20-A
21-A
22-D
23-D
24-B
25-D
26-B
27-D
28-D
29-C
30-C
31-D
32-D
33-B
34-A
35-C
36-D
37-A
38-A
39-D
40-D
I hope they are correct

i also stored them in my calculator! and i have only 2 different answers from u! 6 (lorry one) and 25 (dont remember which one)!

 

[Mohammad Farzanullah]

kamihus
do u remember what was Q25?

 

[thementor]

s

kamihus
do u remember what was Q25?

question 6 was not lorry one

 

[thementor]

kamihus
do u remember what was Q25?

and how the hell do u store them in ur calculator...teach me too...

 

[Mohammad Farzanullah]

s
question 6 was not lorry one

then what was ques 6?

 

[Mohammad Farzanullah]

and how the hell do u store them in ur calculator...teach me too...

what is your calculator model?