Let me think of some other answers I got...

I got D for bungee jump material and accidentally put C instead of B for the lift cable (unless C is in fact correct).
800 and something for the distance travelled by the plane.
Momentum changes after air hits the deflector plates because momentum is a vector and air changes direction so the value becomes the opposite sign.
I didn't have a ruler for the chocolate question ffs so guessed the length. I then rearranged c=f x (wavelength) but idk about that one.
Weak nuclear at the end.

What did people get for the resistance of the probe when the resistance of R1 was 2.1 or something?

Reply 146

aipomaniac

Original post by Kraixo

How many marks was that question

I believe 3, it may have been 2

Reply 147

123chem

Original post by babyetu

0.12, iirc. You could have just asked for the ruler form inviligators!

Reply 148

babyetu

Yeah I thought I got the resistance wrong, I ended up with a value of like 22ohms but forgot what I did haha.

Do people remember any of the answers for the wave questions?

Reply 149

123chem

Original post by babyetu

Yeah I thought I got the resistance wrong, I ended up with a value of like 22ohms but forgot what I did haha.

Do people remember any of the answers for the wave questions?

Was the frequency 2.5 *10^9 Hz?

Reply 150

babyetu

Original post by 123chem

Was the frequency 2.5 *10^9 Hz?

My lack of ruler made me get a larger value for frequency since I got a smaller wavelength

Reply 151

83457

Original post by 123chem

its 0.8%, i put numbers in it and stuff, took me bloody 5 minutes :P

I recall getting 0.8, but in my calculations, that was HOW MUCH of a factor the diameter decreases by, not the percentage decrease. I'm probably wrong :tongue:

(edited 7 years ago)

Reply 152

Akashi

Original post by 123chem

0.12, iirc. You could have just asked for the ruler form inviligators!

I got 1.5 since I used rounded values i.e 2.3 as RT :/ Did they not say using previous value for R?

Reply 153

Frankly Shankly

What I can remember from my 6 mark question

20160524_132852.jpg284.4KB

Reply 154

Pra99

Anyone have the paper? Also, is there a lot of difference between the old and new spec? Is it easier or harder

Reply 155

Akashi

Original post by aipomaniac

I used second and third just to be safe!

Engine exerts a force on air so air exerts a force on engine.
Air is accelerated as it passes through the engine so can also use f=ma

Didn't the question only ask as to whether the air exerts a force in the direction of motion?

Reply 156

babyetu

I said bungee was D because it withstands huge strain which is expected of a bungee cord due to the change in length/extension of the rope. It also deforms elastically so it returns to its original shape when the load is removed which is effectively what needs to happen with a bungee cord considering...

Reply 157

babyetu

Original post by Akashi

Didn't the question only ask as to whether the air exerts a force in the direction of motion?

It said considering the laws of motion, which would be Newton's 3rd law. This is because the jet exerts a force on the air and the air exerts an equal and opposite force on the jet, basically.

Reply 158

Gurkin

What did people get for the one with the voltmeter placed between A and B

Reply 159

Akashi

Original post by babyetu

It said considering the laws of motion, which would be Newton's 3rd law. This is because the jet exerts a force on the air and the air exerts an equal and opposite force on the jet, basically.