Page 624 - MODUL SPEKTRUM FIZIK SPM

6.6 Interference/ Interferens

Inference / The distance between two successive loud sound depends on the distance from the
Inferens: loudspeakers
Jarak antara dua bunyi kuat berturutan bergantung kepada jarak daripada pembesar suara
Hypothesis / The distance between two co n se cu tive loud sounds increases as the distance of
Hipotesis: separation of two sources increases.
Semakin besar jarak daripada pembesar suara semakin besar jarak antara dua bunyi kuat
berturutan
Aim / Tujuan To investigate the relationship between distance between two co n se cu tive loud sounds
eksperimen: and distance from the loudspeakers.
Untuk mengkaji hubungan antara jarak dari pembesar suara dan jarak antara
dua bunyi kuat berturutan
Variables/ Manipulated/dimanipulasi : Distance between the observer and
Pembolehubah: loudspeakers / jarak dari pembesar suara, D
Responding / bergerak balas: Distance between two successive positions of loud sounds
/ jarak antara dua bunyi kuat berturutan, x
Fixed/ Malar :frequency of audio generator/Frekuensi, f
Apparatus / Audio signal generator, two identical loudspeakers, connecting wires and metre ruler
Radas dan Penjana isyarat audio, pembesar suara, pembaris meter
bahan:
Arrangement of
apparatus /
Susunan radas:

Procedure / • Switch on the audio generator.
Prosedur :
• A student walked slowly along a parallel straight line at a distance, D =5.0 m from the
loudspeakers using a metre rule /measuring tape.
• The distance, x between two successive positions of loud sounds is measured using a
metre rule.
• The experiment is repeated for D = 1.0m, 1.5 m, 2.0 m, 2.5 m and 3.0m.
Tabulate data/ D/m x/m
Penjadualan 1.0
Data: 1.5
2.0
2.5
3.0

Analyze data/
Analisa data:

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