Physics P1 and P2 Discussions

[UFO_far_planet]

yes that is the correct answer...

No, it's wrong. If he did gain kinetic energy, he would not SLOW down. Question said he was slowing down.
I think it is: G.P.E(very deep pool) + K.E(high speed) --> Thermal(slows down)
It is a bit like terminal velocity, except that the velocity is decreasing and not constant.

 

[papajohn]

No, it's wrong. If he did gain kinetic energy, he would not SLOW down. Question said he was slowing down.
I think it is: G.P.E(very deep pool) + K.E(high speed) --> Thermal(slows down)
It is a bit like terminal velocity, except that the velocity is decreasing and not constant.

PE is reference to the height. The word speed indicated KE. The jump or dive whatever indicate PE energy.

 

[Haris Sal11]

but pressure will increase as volume increases, wont it?

Your answer is correct, don't worry.

 

[Haris Sal11]

1) which graph?
2) dont remeber, i think A
3)added both 10000 n 5000 to calculate G.P.E
4) current same in series, voltage same in parallel
5) not sure, chose pressure decreases, vol increases
6) A
7) A
8) S-N N-S
9) Iron
10) 24 mins
11) Nucleus is small
12) --
13) Fuse blows
14) Virtual,not inverted
15) chose K.E + G.P > thermal
16)towards center
17) both same
18)A
19) C
20) --
21)Polyethene with woolen cloth
22) --
23) i think it came to be 3 x 10^3
24) chose both decrease
25) D
26) Frequency decreases
27) D
Guys correct me if i m wrong

13 is wrong. Fuse blowing out is not a danger. Over-heating in the socket.

 

[Haris Sal11]

No it was a series connection

Voltmeter was connected in parallel.

 

[Haris Sal11]

Fuse is in appliances and plugs. The thing is that each plug of each appliance is getting the required current not larger but all together, the current passing through the socket is very high.

And, a fuse blowing is not dangerous. It's a protective measure. Stupid to go with that option.

 

[Saad Mughal]

And, a fuse blowing is not dangerous. It's a protective measure. Stupid to go with that option.

Yeah, but still, it wouldn't even blow!

 

[Haris Sal11]

Yeah, but still, it wouldn't even blow!

How'd Bio go?

 

[Saad Mughal]

How'd Bio go?

Not taking Bio. ICT student.

 

[Haris Sal11]

Not taking Bio. ICT student.

Oh haha.

 

[tayyabaaijaz]

easy bio paper. bye CIEs

 

[thementor]

No, it's wrong. If he did gain kinetic energy, he would not SLOW down. Question said he was slowing down.
I think it is: G.P.E(very deep pool) + K.E(high speed) --> Thermal(slows down)
It is a bit like terminal velocity, except that the velocity is decreasing and not constant.

oh for pete's sake...no one said he was gaining kinetic energy......it would be converted into kinetic energy for him to move.......otherwise he would stop compeletely.

 

[thementor]

Dude, voltmeter has INFINITE resistance!

oh damnnnn!!!!!

 

[Shadow]

oh damnnnn!!!!!

So the correct ans was that both readings drecrease?

 

[thementor]

easy bio paper. bye CIEs

best and easiest bio paper ever...agreed

 

[Shadow]

Voltmeter was connected in parallel.

Of corse i know that -_- Its the basics of circuits. I was talking about the overall arrangement of circuit

 

[thementor]

So the correct ans was that both readings drecrease?

looks like..it...

 

[thementor]

No, it's wrong. If he did gain kinetic energy, he would not SLOW down. Question said he was slowing down.
I think it is: G.P.E(very deep pool) + K.E(high speed) --> Thermal(slows down)
It is a bit like terminal velocity, except that the velocity is decreasing and not constant.

HE WASNT GAINING K.E.....FOR CRYING OUT LOUD..........BUT FOR HIM TO MOVE...........HE MUST HAVE K.E........... SO G.P.E-->K.E+HEAT.......

 

[thementor]

How'd Bio go?

better than P2

 

[Fahm E Deen]

Guys, Was the work done in the extension question to be found by multiplying 90 or 180?? People say both are correct ..