Sains Tahun 4: Bunyi

Quiz
•
Others
•
4th Grade
•
Medium
NUR SYAMIMI BINTI ISMAIL
Used 2+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apakah punca utama bunyi terhasil?
Cahaya
Getaran
Udara
Suhu
Answer explanation
Bunyi terhasil apabila objek bergetar dan menghasilkan gelombang bunyi
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bagaimanakah bunyi bergerak dari sumber ke telinga kita?
Melalui cahaya
Melalui getaran
Melalui udara
Melalui haba
Answer explanation
Bunyi bergerak melalui medium seperti udara, air atau pepejal.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apakah fenomena pantulan bunyi yang biasa berlaku di gua?
Gema
Sonar
Bayang-bayang
Cahaya pantul
Answer explanation
Gema berlaku apabila bunyi dipantulkan semula dari permukaan keras seperti dinding gua.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Yang manakah contoh bunyi yang memudaratkan?
Azan
Muzik perlahan
Bunyi bising pembinaan
Loceng sekolah
Answer explanation
Bunyi yang terlalu kuat dan berterusan boleh menyebabkan gangguan dan tekanan.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Antara yang berikut, manakah cara untuk mengurangkan pencemaran bunyi?
Menjerit di tempat awam
Memasang penebat bunyi
Menggunakan pembesar suara di luar rumah
Membunyikan hon tanpa sebab
Answer explanation
Penebat bunyi menyerap bunyi dan mengurangkan gangguan bunyi dari luar.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apakah alat yang digunakan oleh kapal selam untuk mengesan objek melalui pantulan bunyi?
Radar
Sonar
Mikrofon
Gema
Answer explanation
Sonar mengurangkan gelombang bunyi untuk mengesan objek di dalam air.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bunyi boleh dipantulkan apabila mengenai permukaan yang…
Lembut dan menyerap
Licin dan keras
Basah dan lembap
Sejuk dan gelap
Answer explanation
Permukaan licin dan keras memantulkan bunyi dengan lebih berkesan.
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