Physics HSC Predictions/Thoughts (1 Viewer)

[notme123]

actually in relation to normanhurst, one of the qs are: "Describe how careful observation of the emr from various sources gave evidence in support of the BBT." (5 marks)

I was thinking the Hubbles Law (redshift emr of distant stars) to provide evidence for expanding universe and CMBR to provide evidence of the annihilation/pair production process before the inflation/cooling stage of the hot Big Bang,and how its isometric and stuff but what other evidence is there?
The only other peices of evidence are distant galaxies have younger stars (can give age of universe) and that ratio of hydrogen to helium 3:1 but what else is there thats related to EMR?

 

[uniqueusername1]

actually in relation to normanhurst, one of the qs are: "Describe how careful observation of the emr from various sources gave evidence in support of the BBT." (5 marks)

I was thinking the Hubbles Law (redshift emr of distant stars) to provide evidence for expanding universe and CMBR to provide evidence of the annihilation/pair production process before the inflation/cooling stage of the hot Big Bang but what other evidence is there?
The only other peices of evidence are distant galaxies have younger stars (can give age of universe) and that ratio of hydrogen to helium 3:1 but what else is there thats related to EMR?

existence of cosmic microwave background radiation?

 

[notme123]

existence of cosmic microwave radiation?

thats CMBR (cosmic microwave background radiation). doesnt that provide evidence or not really?

 

[uniqueusername1]

thats CMBR

yea then i reckon you covered just about everything

 

[notme123]

yea then i reckon you covered just about everything

imagine a fat 9 marker on the timeline of the big bang or time line of stars like bro we didnt even cover this in class in detail. we got a crappy flow chart and no processes between gravity and pressure

 

[minijo]

that group is so incompetent i dont even bother with them. the only decent paper i could find was normanhurst and even then it doesnt really reflect hsc style questions

Yeah, but even one of the Normahurst multis had the wrong answer too

existence of cosmic microwave background radiation?

Galaxies further away are more dense, but thats more expansion of universe which follows on from Big Bang I guess

 

[uniqueusername1]

imagine a fat 9 marker on the timeline of the big bang or time line of stars like bro we didnt even cover this in class in detail. we got a crappy flow chart and no processes between gravity and pressure

mate i was grinding those two lol yesterday in detail haha

 

[minijo]

mate i was grinding those two lol yesterday in detail haha

I reckon life cycle of a star or origins of all elements or debate between light vs particle will be one of the 7-9 markers

 

[notme123]

the things i dont want:
ac induction motors
big bang
stars
explaining huygens and newtons models of light (like seriously they're both wrong in one way or another why are we studying them)

 

[uniqueusername1]

the things i dont want:
ac induction motors
big bang
stars
explaining huygens and newtons models of light (like seriously they're both wrong in one way or another why are we studying them)

come on bro thats all the fun topics

 

[notme123]

I reckon life cycle of a star or origins of all elements or debate between light vs particle will be one of the 7-9 markers

omg i forgot how elements form. remind me, is it like stars form from H and He and they burn stuff up to iron56 but then in supernova, heavier products are made and dispersed throughout the universe

 

[minijo]

the things i dont want:
ac induction motors
big bang
stars
explaining huygens and newtons models of light (like seriously they're both wrong in one way or another why are we studying them)

I agree with ac induction motors but not the rest. Huygens and newton will come up as like how scientific models are challenged or affirmed or whatever, and big bang and stars is memorized

 

[uniqueusername1]

ok maybe we can take ac induction motor off the list if we dont have to regurgitate a paragraph on how they operate
the rest is staying cuz i bloody hate the huygens model cuz i just dont understand it. newton is fine like theres a billion reasons why his model is wrong and i can explain his model a little better

aww man that just made me feel sad

fine we'll reach a middle ground

i hope its a 9 marker on motors and generators

 

[notme123]

aww man that just made me feel sad

fine we'll reach a middle ground

i hope its a 9 marker on motors and generators

hmmmmmmmmm perhaps. but idk what a slip ring does i just know it goes on ac generator lol. is it basically it just carries the current like is that its only job? split ring i know switches the current cuz dc goes one way.

 

[uniqueusername1]

hmmmmmmmmm perhaps. but idk what a slip ring does i just know it goes on ac generator lol. is it basically it just carries the current like is that its only job? split ring i know switches the current cuz dc goes one way.

yea basically lol

 

[minijo]

Idk if its concerning or comforting that like 80% is a B6 and 59% is a mid B5

 

[DarkOperator618]

i just dont wanna see the first section of module 8 in any form

ik that's never gonna happen doe

 

[uniqueusername1]

Idk if its concerning or comforting that like 80% is a B6 and 59% is a mid B5

damn bro

honestly just keen on the exam ending

this has gone on for too long lol

 

[uniqueusername1]

i just dont wanna see the first section of module 8 in any form

ik that's never gonna happen doe

interesting very interesting

ngl i kinda skimmed through relativity hard

 

[DarkOperator618]

damn bro

honestly just keen on the exam ending

this has gone on for too long lol

I'm legit sick and tired of looking at rawmarks info ngl