# Physics Exam Thoughts (1 Viewer)

#### Drdusk

##### Moderator
Moderator
I personally found it much easier than previous years.

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#### thejimster_73

##### New Member
Based on the syllabus changes, I was expecting a challenging and conceptual paper but instead got a steaming turd.

#### sourish

##### Member
Found the short answer alright, but the mc hard

#### Robrules3

##### New Member
I also found it easier, band 6 cut off will defininately be higher. What did u guys write for the reason that projectile motion experiment was invalid? I honestly had no clue what to write so I just said that you can’t measure the horizontal displacement coz the starting position is not from the ground and this would affect the result. Would I get any marks for that?

#### thejimster_73

##### New Member
I also found it easier, band 6 cut off will defininately be higher. What did u guys write for the reason that projectile motion experiment was invalid? I honestly had no clue what to write so I just said that you can’t measure the horizontal displacement coz the starting position is not from the ground and this would affect the result. Would I get any marks for that?
I think it's cause he's only got a ruler for the horizontal and not the vertical.

#### Stev3n

##### New Member
what graph did everyone draw for the spinning magnet inducing emf? (3 marker)

#### Stev3n

##### New Member
did anyone know how to do the 6 marker on transmission lines and houses? I found that one really hard

#### Drdusk

##### Moderator
Moderator
what graph did everyone draw for the spinning magnet inducing emf? (3 marker)
It's a normal emf curve except the amplitude and frequency is increasing

#### Stev3n

##### New Member
Sin or cos graph?

#### sourish

##### Member
Damn, I forgot increasing frequency

#### Powereaper

##### New Member
what graph did everyone draw for the spinning magnet inducing emf? (3 marker)
For that curve I had increasing amplitude and decreasing period every half-rotation since velocity was increasing

#### Drdusk

##### Moderator
Moderator
For that curve I had increasing amplitude and decreasing period every half-rotation since velocity was increasing
Ah be careful. Period is the time it takes to complete one rotation. Since velocity is increasing this time will be less

#### Powereaper

##### New Member
What did people do for Wilson's cloud chamber for Y? I put gamma, cause the tracks were not zig-zag

#### Exp

##### Member
I found the mcq very hard- probably list 4+ marks lol.

For Q2Q, what was source X and Y?? I was gonna put alpha radiation for both but it specifically states that they are different types of radiation, so I put:
X as beta
- shorter half life
and Y as alpha
- longer half life

I have no idea if that's correct :/

#### sohail747

##### New Member
Does anyone know how many marks the question about the impacts of scientific knowledge and development of technology on use of semiconductors was

#### Exp

##### Member
What did people do for Wilson's cloud chamber for Y? I put gamma, cause the tracks were not zig-zag
If I remember correctly, X was the first, short one and Y was the second, longer one, but anyway maybe it was gamma... but both tracks were straight like a standard alpha path

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#### Exp

##### Member
Does anyone know how many marks the question about the impacts of scientific knowledge and development of technology on use of semiconductors was
4

#### Drdusk

##### Moderator
Moderator
I found the mcq very hard- probably list 4+ marks lol.

For Q2Q, what was source X and Y?? I was gonna put alpha radiation for both but it specifically states that they are different types of radiation, so I put:
X as beta
- shorter half life
and Y as alpha
- longer half life

I have no idea if that's correct :/
X was alpha because they produce short and thick tracks(hence why it was in bold)
Y was beta as they produce long and thin tracks.

#### whatafeeling

##### Member
Ok MC sucked
But I expected short answer to be way harder
Option (Quanta) was the best.

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