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Sound Wave
The SPM Physics Workbook is developed under the One-School.net Free Books Project. The content of this book is strictly follow Malaysia SPM (Sijil Pelajaran Malaysia) syllabus. The aim of this project is to provide a complete electronic supplementary network for students to develop self-learning skills by breaking the spoon-feed rituals and to encourage them to compile educational information from the Internet.
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1. Which of the followings are true about sound wave?
I Sound wave is a mechanical wave
II Sound wave is a longitudinal wave
III Sound wave cannot travels in vacuum
I Sound wave is a mechanical wave
II Sound wave is a longitudinal wave
III Sound wave cannot travels in vacuum
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2.Which of the following is NOT TRUE about the speed of sound wave in solid, liquid and gas?
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3. Ultrasonic is the sound with frequency
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4. A louder sound have
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5. The pitch of a sound is determined by its
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6. The sound of a moving train at a distance sound louder at night than that in the day time. This is due to
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7. When a sound wave travels from air into a glass, it is refracted
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8. Two speakers is placed a distance apart of 1.5 m. An audio signal generator is adjusted to a frequency of 600 Hz. When a student walks 3.0 m in front of the speakers, he gets to hear four loud sounds successively in a distance of 3.3 m. Find the wavelength of the wave
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9. Electronic pulses are transmitted from a ship and are received again in a time interval of 0.2 s when the pulses are reflected back by a big object. If the speed of sound in the sea is 1200 ms-1, what is the distance of the object from the ship?
Magnetic Field
A magnetic field is a region in the surrounding of a magnet which a magnetic material experiences a detectable force.
A magnetic field is a region in the surrounding of a magnet which a magnetic material experiences a detectable force.
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