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fizik hannah

Authored by Miss H H

Physics

5th Grade

Used 1+ times

fizik hannah
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30 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which phenomenon of sound waves enables us to hear sound from an obstacle where we cannot see?

Manakah fenomena gelombang bunyi yang membolehkan kita mendengar bunyi dari halangan di mana kita tidak boleh melihatnya?

Reflection / Pantulan

Interference / Interferens

Diffraction / Pembelauan

Refraction / Pembiasan

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

The diagram shows an interference pattern of two coherent water wave sources, P and Q

On which of the positions A, B, C and D shows the amplitude of the wave is zero?


Rajah menunjukkan corak interferen bagi dua sumber koheren bagi gelombang air, P dan Q.Pada kedudukan A, B, C dan D yang manakah menunjukkan amplitud gelombang adalah sifar?

A

B

C

D

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

In a Young’s double slit experiment, blue light and red light are used to produce interference fringes. The blue fringes are narrower than the red fringes because blue light...

Dalam eksperimn dwi celah Young, cahaya biru dan cahaya merah digunakan untuk menghasilkan pinggir interferen. Pinggir-pinggir biru lebih pendek berbanding pinggir-pinggir merah kerana cahaya biru...

moves faster than red light

bergerak lebih cepat daripada cahaya merah

refracts more than red light

terbias lebih daripada cahaya merah

has shorter wavelength than red light

mempunyai panjang gelombang yang pendek daripada cahaya merah

has lower frequency than red light.

Mempunyai frekuensi lebih rendah daripada cahaya merah.

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Diagram shows an interference pattern. What is the wavelength of the waves?

Rajah menunjukkan satu corak interferens.Apakah panjang gelombang bagi gelombang itu?

0.27 cm

0.71 cm

1.88 cm

3.75 cm

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Astronauts are in a space-ship orbiting the moon. They see an explosion on the surface of the Moon. Why can they not hear the explosion?

Angkasawan di dalam kapal angkasa mengorbit bulan. Mereka melihat letupan di permukaan bulan. Mengapa mereka tidak boleh mendengar bunyi letupan?

Explosions cannot occur in space

Letupan tidak berlaku di angkasa lepas

Sound cannot travel through a vacuum

Bunyi tidak boleh bergerak melalui vakum

Sound travel too quickly through space

Bunyi merambat terlalu cepat melalui angkasa

Sound is reflected from the space-ship

Bunyi dipantulkan daripada kapal angkasa

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which characteristic is the same for the gamma rays, ultraviolet rays and micro wave?

Manakah ciri-ciri yang sama untuk sinar gama, sinar ultraungu dan gelombang mikro?

Velocity / halaju

Frequency / frekuensi

Wavelength / panjang gelombang

Amplitude / amplitud

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Media Image

The diagram below shows a luggage scanning device used in an airport for security inspection of passengers’ luggage. Which radiation is suitable for scanning the contents of the luggage?

Rajah menunjukkan alat mengesan bagasi yang digunakan di lapangan terbang untuk keselamatan mengesan bagasi penumpang. Radiasi manakah yang sesuai untuk mengesan kandungan dalam bagasi?

Infrared rays / infra merah

Ultrasonic waves / gelombang ultrasonik

Gamma rays / sinar gamma

X-rays / Sinar X

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