pikachu975
Premium Member
Personally found MCQ and some short answers hard
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Physics Exam Thoughts (2 Viewers)
- Thread starter pikachu975
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silverdawn565
Member
Wasn't too bad. I only got stuck with 2 MCQs and a few short answers. I didn't go too well in my option topic though. Kinda wish I focused on it more during study.
pikachu975
Premium Member
Rip got 16/20 in MCQ and the radiation question was really hard probably stuffed that up
Commando007
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projectile was fked
silverdawn565
Member
Same.
Radiation question for space re-entry.
The Magnetic flux one.
And finding the range for that projectile tbh. (If you guys got that out, how'd you do it? I think the initial velocity was 10m/s and angle 60 degrees?)
But I tried to write at least something down for each.
Radiation question for space re-entry.
The Magnetic flux one.
And finding the range for that projectile tbh. (If you guys got that out, how'd you do it? I think the initial velocity was 10m/s and angle 60 degrees?)
But I tried to write at least something down for each.
pikachu975
Premium Member
The radiation question was bs had no clue what I was writing
Proton I half bsed it but hopefully my north west helical shape was right
To the person above, range was found using delta y = 0, finding t and subbing back into delta x.
Proton I half bsed it but hopefully my north west helical shape was right
To the person above, range was found using delta y = 0, finding t and subbing back into delta x.
The first part was a bit trickier you needed to realise that you needed to use the value you got for potential energy of the spring was converted to the kinetic energy of the ball so you could use 1/2mv^2 to find velocity. The second part was quite standard though.
I'm paranoid after seeing so many people struggle with projectile that I might've missed something too. But I just used y = ut + 1/2at^2 to find t first, then used t to find range since you know initial horizontal and vertical velocity.
pikachu975
Premium Member
Apparently you use right hand palm rule so it's C ahha rip I thought it's D because it's closer to surface so more change in flux
silverdawn565
Member
Oh. *fp* Now I feel stupid. That delta y would then have been like a quadratic, right? The equation I subbed into into made t=0 (v=u+at : I'm not stupid... I think exam stress got to me...) So I only ended up stopping at writing down the equation delta x = ux*t. (Except I kinda stupidly crossed it out... so I don't think the markers would count it).
But thanks for that.
pikachu975
Premium Member
All good stress gets to everyone!
silverdawn565
Member
First part, I talked about g-force and heat and how the safe angle is between 5.2-7.2 degrees and 10 degrees exceeds that.
Um for radiation one I had no clue tbh. I wrote something about light and heat energy and having to reduce the heat on the spacecraft (ceramic plates?). I'm pretty positive I'm probably incorrect for that though.... but for the sake of writing 'something' down.
Last edited:
pikachu975
Premium Member
Maybe 77-80 b6 cutoff I think
NinjaDatHSC
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Was it wrong to for the flux density to use the max flux and divide it by the area of the circle loop (It didn't say the loop was circular nor that the given length was the diameter, so idk if what i did was right)