Practicals you need to know thread... (1 Viewer)

[Takuya]

Hey there,

Well this is probably something that most of you haven't thought of; Revising your practicals. There's always a question on a 'first hand investigation' you performed during your course, so what do you people think will be the mostly likely practicals to be asked?

There are 2 common ones:
1. Projectile motion
2. Pendulum experiment (damn boring to write up)

What else?

 

[freaking_out]

just go thru the syllabus dot points if u wanna know the practicals...they can pretty much ask u anything from the pracs.

 

[forsaken_99]

Pendulum was there last year so it won't be there.

I'm thinking about that M&G one with the current carrying coil between two magnets. They could ask a lot on that so that is where my money would go.

 

[ND]

Forsaken: do you mean the motor effect prac? As freaking_out said, they can ask you anything, so know everything.

 

[forsaken_99]

i can hope can't i?

 

[Takuya]

Of course in an ideal situation you know 'everything'. My knowledge is good enough to be able to do all practicals, but a little speculation always helps.

What's the current carrying coil between two magnets?? Are you talking about speaker cones? I don't recall ever doing a practical like that, apart from sticking a magnet into a coil.

 

[parry]

Can anyone tell me what expt i shouldve done for the dp "perform an investigation to demonstrate the production and reception of radio waves",
The closest we did was using a microwave transmitter and reciever, with sound superimposed on the waves, then playing with the recievers signal, and trying to reflect the wave around the class and polarise it.

 

[Takuya]

Originally posted by parry
Can anyone tell me what expt i shouldve done for the dp "perform an investigation to demonstrate the production and reception of radio waves",
The closest we did was using a microwave transmitter and reciever, with sound superimposed on the waves, then playing with the recievers signal, and trying to reflect the wave around the class and polarise it.

Used an induction coil to create sparking across some apparatus, then turned on a radio in the room and listened to interference.

A 2 mark question at the most

 

[SmokedSalmon]

Thanks for that Takuya, even if i didn't ask the question... it wasn't in my notes

 

[Takuya]

Now time for some practical speculation

I speculate: AC induction motor practical.

What do you people think?

 

[Dash]

What about the experiments in Ideas to Implemenation?

They might show up...

 

[freaking_out]

i'm glad there's no pracs. for the options, unlike chemistry.

 

[destination]

mmmm....

it is a possibilty that the hertz experiment will be asked this year..
im sure you should study all the manditory experiments as it is better to be on the safe side...
so my advice is to study all 3..
they're not that hard.
very simple as long as you understand the concepts

 

[Takuya]

The Hertz Experiment isn't a first hand investigation. I'm talking about ones we're meant to have done by ourselves.

What are the 3 you're thinking of?

 

[SmokedSalmon]

Originally posted by Takuya
Now time for some practical speculation

I speculate: AC induction motor practical.

What do you people think?

I had that in my half yearly... And I didn't know it
But yeah know that one

 

[destination]

the pendulum to find acceleration due to gravity
the motor effect
hertz's experiment

PHYSICS!!!

 

[failingTheHsc]

question asked in both past years is methods to improve experiments:

i got
repeat the experiment and taking the average value
include a wider range of testing values

my teacher said to avoid saying human error and the use of an analog equipment

any others?

 

[Takuya]

Can someone tell me what the first hand investigation to demonstrate the motor effect is? I think I missed that one...

 

[ND]

Just put a wire in a magnetic field, then connect the wire up to a voltage, and the wire will experience a force.

 

[Takuya]

Originally posted by ND
Just put a wire in a magnetic field, then connect the wire up to a voltage, and the wire will experience a force.

And that's the practical?