Pantulan Gelombang
Quiz
•
Physics
•
7th Grade
•
Medium
NUR SAJIDAH
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5 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Arah perambatan gelombang adalah berserenjang dengan muka gelombang
Betul
Salah
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Apakah jenis muka gelombang tersebut?
Muka gelombang pegun
Muka gelombang melintang
Muka gelombang membujur
Muka gelombang satah
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Selepas pantulan gelombang, semua ciri gelombang berubah.
Betul
Salah
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Berikut merupakan kegunaan pantulan gelombang dalam kehidupan harian kita, kecuali
Gelombang ultrasonik yang dipantulkan oleh organ dalaman.
Gelombang radio dari satelit komunikasi dipantulkan oleh antena parabola ke hon suapan.
Sonar
Hologram pada kad bank
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Gelombang ultrasonik berfrekuensi 25kHz dipancarkan dari sebuah kapal ke dasar laut untuk menentukan kedalaman laut. Gelombang itu bergerak dengan laju 1500ms-1 dalam air laut. Sela masa antara penghantaran dengan penerimaan semula gelombang ultrasonik ialah 120ms-1. Tentukan kedalaman laut.
100 m
80 m
90 m
95 m
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