AQA Physics Unit 1 PHYA1 20th May 2013

Original post by StalkeR47

Quantum is another chapter.

Is quantum stuff like the photo-electric effect?

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Reply 321

Original post by simon105

Is quantum stuff like the photo-electric effect?

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Yes!

Reply 322

Original post by simon105

Is quantum stuff like the photo-electric effect?

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Photo-electric effect comes under the category

Reply 323

Original post by simon105

Is quantum stuff like the photo-electric effect?

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are you still revising physics? :cool:

Reply 324

Original post by simon105

Desperate times, desperate measures...

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Sleep is no option for me either.... I'm pretty much trying to learn this in 24 hours too

been over a year since I've done this stuff :redface:

Reply 325

Cheers lads, so what else comes under quantum physics? The only things that stick in my mind are the photo-electric effect and wave-particle duality.

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Reply 326

Original post by simon105

Cheers lads, so what else comes under quantum physics? The only things that stick in my mind are the photo-electric effect and wave-particle duality.

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Quantum phenomena------ 1) Photo electricity, 2) More about photo electricity, 3) collision of electrons with atoms, 4) Energy levels in atoms, 5) energy level in spectra, 6) wave particle duality. That is it! :cool:

Reply 327

Jokes-----------1) An elderly couple sat in a church service,
the wife
turns round to her husband and says '' I have just done a silent fart, i hope
no-one smells it''
her husband replies '' turn your hearing aid
on''

2) There was a blonde a brunette and a redhead. They were in the
church and noticed a pool of water. They asked the priest what the water was for
and the priest said ''go do something bad and come back''
So they did and
came back the next day and they asked the priest why they had to do that. The
priest answered ''When you do something bad,.... You come to the holy water and
drink it to be forgiven and clean'
the redhead said ''well I Ran over a cat''
and then drank the holy water. The brunette said ''i robbed a bank'' and then
drank the holy water. The blonde stared at them and The priest asked ''what Bad
deed did you do?'' and The blonde said ''i Peed in the holy water''

Reply 328

Original post by StalkeR47

Quantum phenomena------ 1) Photo electricity, 2) More about photo electricity, 3) collision of electrons with atoms, 4) Energy levels in atoms, 5) energy level in spectra, 6) wave particle duality. That is it! :cool:

Cheers.

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Reply 329

Original post by StalkeR47

Jokes-----------1) An elderly couple sat in a church service,
the wife
turns round to her husband and says '' I have just done a silent fart, i hope
no-one smells it''
her husband replies '' turn your hearing aid
on''

2) There was a blonde a brunette and a redhead. They were in the
church and noticed a pool of water. They asked the priest what the water was for
and the priest said ''go do something bad and come back''
So they did and
came back the next day and they asked the priest why they had to do that. The
priest answered ''When you do something bad,.... You come to the holy water and
drink it to be forgiven and clean'
the redhead said ''well I Ran over a cat''
and then drank the holy water. The brunette said ''i robbed a bank'' and then
drank the holy water. The blonde stared at them and The priest asked ''what Bad
deed did you do?'' and The blonde said ''i Peed in the holy water''

Stick to the physics!

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Reply 330

Me123456789

21

What is the the difference between the mass of a proton in SI units and relative units???? :confused:

Reply 331

Original post by simon105

Stick to the physics!

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LOL it is now almost 2am. I am logging off in 5 mins. :cool:

Reply 332

Original post by Me123456789

What is the the difference between the mass of a proton in SI units and relative units???? :confused:

A single proton has a rest mass of 1.67x10^-27kg. I do not know what do you mean by SI and relative. You only need to know the mass in kg for physics AS-level AQA unit 1.

Reply 333

Original post by Me123456789

What is the the difference between the mass of a proton in SI units and relative units???? :confused:

relative units just make it easier to refer to...

like the charge on electrons and protons are -1.6 x 10^-19 & +1.6 x 10¹⁹but relative to each other you can say the charges are -1 & +1

All units are just relative measurements really to a particular scale, SI units are like the standard units used.

Reply 334

Bye everyone and have a really good night sleep!!! :aetsch:

Reply 335