Cheat Sheet

[Stroodle]

What definitions have you put on your cheat sheet? I have about 6cm^2 left, and dunno what to put there...

[ks04]

I've got:
Transducer
Input transducer
Output transucer
Amplifier
Modulator
LDR
Photo Diode
Phototransistor
DC
Smoothing
Newtons laws
Centripetal Force

[cameron_15]

I thought we don't need to worry about photostransistors?

[lachymm]

Same and what do you mean by "smoothing"?

[Cuntryboner]

I've got:
Transducer
Input transducer
Output transucer
Amplifier
Modulator
LDR
Photo Diode
Phototransistor
DC
Smoothing
Newtons laws
Centripetal Force

This is good Idea, plus what we did for detailed study, relativity. Also momentum is conserved in a closed system, loss of kinetic energy in a collision deems it to be inelastic.

[Akirus]

There was a question in a practice paper asking you to define an 'analogue system'. Might be worth throwing in because I'd never even heard of that term before.

[Cuntryboner]

Yeah I saw that, I was stumped too.

[ks04]

Same and what do you mean by "smoothing"?

It's in the further electronics detailed study - the process of using capacitors to absorb excess electrons from the circuit when voltage is heigh, and release when voltage is low.

[ks04]

I thought we don't need to worry about photostransistors?

You don't need to worry about transistor circuit however (as far as i'm aware) there may be a question comparing Photodiodes/Phototransistors and LDRs.
Basically they fit between LDRs and Photodiodes in terms of response time and are able to detect really low levels of lights and respond to allow current to flow.

I may be wrong about it being on the course - but our teacher taught us it so better safe then sorry.

[kyzoo]

There was a question in a practice paper asking you to define an 'analogue system'. Might be worth throwing in because I'd never even heard of that term before.

There's also digital system =/

And all i have on my cheat sheet are the basic pointers for apparent weightlessness and carrier wave.

[ks04]

Digital Systems are just 1s and 0s i.e - on and off - think square wave.
vs analogue systems are varying levels - think light getting a light getting darker and brighter depending on the signal i.e a sin wave (though does not have to be uniform)

[Stroodle]

Awesome. I just ended up using the rest of my cheat sheet to put a few point on crumple zones/airbags etc. Dunno how much I need it, but it'll save time if they throw a question on it in there.

[m@tty]

Analouge - continuously variable signal.

Digital - Discrete levels of signal. Generally only two - 'On' or 'off'.

[Akirus]

There was a question in a practice paper asking you to define an 'analogue system'. Might be worth throwing in because I'd never even heard of that term before.

There's also digital system =/

And all i have on my cheat sheet are the basic pointers for apparent weightlessness and carrier wave.

I threw in the definition of digital system following my analogue definition.

I've been accumulating my cheatsheet since the beginning of the year, it's just a swamp of equations that I'll never use.

[kyzoo]

=/ I took 20 minutes to make my cheatsheet because I know I'm probably not even going to touch it