Understanding Wave  Calculation Question The SPM Physics Workbook is developed under the OneSchool.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 selflearning skills by breaking the spoonfeed rituals and to encourage them to compile educational information from the Internet.
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1. Figure above shows the pattern of wavefronts produced by bob dipper at a frequency of 25Hz in a ripple tank. Find the speed of the wave.
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2. In a ripple tank experiment, waves are produced at the rate of 24 waves per second and the distance between 5 successive ripples is 20cm. The experiment is repeated by changing the frequency of the vibrator, and the new distance between 5 successive ripples is 12cm. What is the new frequency of the vibrator?
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3. The end coil of a slinky spring is connected to a motor which is moving forward and backward at a frequency of 4Hz. Given that the distance between four successive rarefactions is 60cm. What is the speed of the speed of wave produced?
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4. A sound wave of wavelength 4mm travels in air at a frequency of 6.0 × 10^{4} Hz. Find the time take by the wave to travel 60m.
Question 5, 6 and 7 are based on the diagram information provided below. The displacementdistance graph in the figure above shows the motion of a transverse wave. The source of the wave produces 8 complete waves in 2 seconds. Choose the best answer.
5. Find the amplitude of the wave
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6. Find the wavelength of the wave
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7. Find the speed of the wave
Magnetic Field
A magnetic field is a region in the surrounding of a magnet which a magnetic material experiences a detectable force. 

