OCR Physics A G484 - The Newtonian World - 11th June 2015 Watch

tory_lee_x
Badges: 2
Rep:
?
#1761
Report 3 years ago
#1761
(Original post by Josh771)
Still ECF though no matte the answer everyone I talked to after the exam got the same as me using the N system, but fingers crossed for low boundaries!! I got extreamely excited when I read the first question as I'd spent 10 minutes before the exam explaining how it works with something on a table to everyone!!!
You actually knew how to answer the first question?! I left it til last and babbled about how the student was talking about the weight but the weight varies depending on its position in the gravitational field blah blah blah and that the actual opposite force is from the centre of gravity of the moon... It was my "Ladies, you have 5 minutes left" panic scribble!
0
reply
[email protected]
Badges: 9
#1762
Report 3 years ago
#1762
(Original post by Josh771)
Ahhh well, everyone I talked to did the same as me so at least I'm not the only one! Still, the rest of the paper seemed to be ok, and hopefully a load of ECF marks for the weird bits
Everyone I talked to used both volumes so at least I am not the only one! Someone upload paper so we can see who is right!
reply
whyalwaysme??
Badges: 2
Rep:
?
#1763
Report 3 years ago
#1763
teacher teacher cool, where are you?
0
reply
verello12
Badges: 14
Rep:
?
#1764
Report 3 years ago
#1764
(Original post by maya997)
What did people get for the time of the photons question?
very small value I believe, can't remember exactrly
0
reply
tory_lee_x
Badges: 2
Rep:
?
#1765
Report 3 years ago
#1765
(Original post by maya997)
What did people get for the time of the photons question?
Something really tiny, in the order of 1000th of a second
0
reply
[email protected]
Badges: 9
#1766
Report 3 years ago
#1766
(Original post by rachelc142)


I ended up with this too. My friend did KE = WD so 1/2 m. v^2 = Fs
I did SUVAT so didnt have an M in miine??!!
reply
ibanezmatt13
Badges: 2
Rep:
?
#1767
Report 3 years ago
#1767
(Original post by verello12)
very small value I believe, can't remember exactrly
I recall 2ms ish?
0
reply
rachelc142
Badges: 11
Rep:
?
#1768
Report 3 years ago
#1768
(Original post by maya997)
What did people get for the time of the photons question?
I think it was around 2 = 10^-3

(Original post by tory_lee_x)
Out of interest, how many people who sat the exam today do maths? What are you guys applying for Uni to do? I don't do maths (I hate it) and I've got a place to study veterinary medicine
me, and further maths, applied for physics :-)
0
reply
rachelc142
Badges: 11
Rep:
?
#1769
Report 3 years ago
#1769
(Original post by [email protected])
I did SUVAT so didnt have an M in miine??!!
I did suvat too and ended up with weird trig. I think this was the wrong thing to do tbh. Conservation of energy seemed to work much better!
0
reply
Josh771
Badges: 2
Rep:
?
#1770
Report 3 years ago
#1770
(Original post by tory_lee_x)
You actually knew how to answer the first question?! I left it til last and babbled about how the student was talking about the weight but the weight varies depending on its position in the gravitational field blah blah blah and that the actual opposite force is from the centre of gravity of the moon... It was my "Ladies, you have 5 minutes left" panic scribble!
Ahah yeah I hope so at least, its because the force acting on the equipment by the surface is a reaction to the force due to the interaction with the equipment and the surface and not the weight on the surface. Also it needs to be the same type of force, and the weight isn't an attractive force. The reaction to the weight would be a frictional force I think
0
reply
suprisefish
Badges: 0
Rep:
?
#1771
Report 3 years ago
#1771
(Original post by [email protected])
I did SUVAT so didnt have an M in miine??!!
Suvat is the correct method and the distance should not be dependent on the mass.

d=u^2sin(2θ)/g
0
reply
Elcor
Badges: 13
Rep:
?
#1772
Report 3 years ago
#1772
(Original post by rachelc142)
I did suvat too and ended up with weird trig. I think this was the wrong thing to do tbh. Conservation of energy seemed to work much better!
How did you do that?
0
reply
L'Evil Fish
Badges: 18
Rep:
?
#1773
Report Thread starter 3 years ago
#1773
(Original post by rachelc142)
where is he?!??!! :-(



I did the former



I ended up with this too. My friend did KE = WD so 1/2 m. v^2 = Fs
Watching this thread

Will probably type it up when he's at home
0
reply
[email protected]
Badges: 9
#1774
Report 3 years ago
#1774
(Original post by suprisefish)
Suvat is the correct method and the distance should not be dependent on the mass.

d=u^2sin(2θ)/g
Oh I got d=U^2cosOsinO/g
reply
rachelc142
Badges: 11
Rep:
?
#1775
Report 3 years ago
#1775
(Original post by Elcor)
How did you do that?
my friend did 1/2 mv^2 = force x distance
0
reply
suprisefish
Badges: 0
Rep:
?
#1776
Report 3 years ago
#1776
(Original post by [email protected])
Oh I got d=U^2cosOsinO/g
you seem to be missing a 2. 2sinθcosθ = sin2θ
0
reply
Elcor
Badges: 13
Rep:
?
#1777
Report 3 years ago
#1777
(Original post by rachelc142)
my friend did 1/2 mv^2 = force x distance
What force? What distance? You can't do it by energy.
0
reply
Josh771
Badges: 2
Rep:
?
#1778
Report 3 years ago
#1778
(Original post by suprisefish)
you seem to be missing a 2. 2sinθcosθ = sin2θ
You dont need that.... As long as you state they are constant as its a fixed angle, a lot of physics people dont do core so wouldn't know that identity
0
reply
suprisefish
Badges: 0
Rep:
?
#1779
Report 3 years ago
#1779
(Original post by Josh771)
You dont need that.... As long as you state they are constant as its a fixed angle, a lot of physics people dont do core so wouldn't know that identity
yeah it won't be in the mark scheme. but u will need the correct equation with either 2sinθcosθ or sin2θ
0
reply
Rifleboy123
Badges: 2
Rep:
?
#1780
Report 3 years ago
#1780
(Original post by sometimestigz)
it was massively harder than past papers- have you DONE any past papers?! I've been regularly getting 100%s on past papers I've never seen before but this exam took it out of me. Maybe you're possessed by the spirit of Newton or sommit.
Hahahaha XD I found it quite hard but most of my peers said it was decent (one guy even said he enjoyed it o_o') so I'm gonna say overall it was hard but not the hardest so far. I hope you're right though; the lower the grade boundaries the better!
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

University open days

  • Cranfield University
    Cranfield Forensic MSc Programme Open Day Postgraduate
    Thu, 25 Apr '19
  • University of the Arts London
    Open day: MA Footwear and MA Fashion Artefact Postgraduate
    Thu, 25 Apr '19
  • Cardiff Metropolitan University
    Undergraduate Open Day - Llandaff Campus Undergraduate
    Sat, 27 Apr '19

Have you registered to vote?

Yes! (212)
39.41%
No - but I will (38)
7.06%
No - I don't want to (36)
6.69%
No - I can't vote (<18, not in UK, etc) (252)
46.84%

Watched Threads

View All
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise