communication dot point (1 Viewer)

[schooly]

Hi, i was looking at the ammended sylabus and realised:

plan and perform a first-hand
investigation to gather first-hand
data to identify the relationship
between wave-length, frequency
and pitch of a sound using a
Cathode Ray Oscilloscope
(CRO)

has now got cut to:

plan and perform a first-hand
investigation to gather data to identify the relationship
between wave-length, frequency
and pitch of a sound

however our prac we did was using a CRO as well as other machines. does this mean we did the wrong prac or what?

 

[s2ophie]

no. my teacher explained they cut the CRO from the wording of the syllabus because somes schools did not have access to one.

 

[moo/pokie]

well i don't recall doing any experiment for communciation except where we hit the dooblys and they made a sound(i have no idea what they were) and they were all in different keys and we recorded it and it was supposed to make a graph but our teacher never finished it and gave us the graph.
i don't know what to do about it...

 

[tooheyz]

yeah we're doing the cro experiement .... i guess theres others ways to do that dot point - if you do physics its pretty easy

i dont think we're doing the wrong prac - they made that dot point more broad so theres heaps of experiments you could perform to do the dot point.