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1. What do you call the highest point of a wave? A Crest B. Amplitude C. Trough D. Waveleng 2. It refers to the highness or lowness of a sound? A. Noise B. Loudness C. Timbre 3. It is a kind of disturbance that transmits energy through a medium A. Electricity B. Force C. Electromagnetic Wave D. Mechanical wave 4. What type of wave moves the particles parallel to the motion of the wave? A. Longitudinal Wave C. Electromagnetic Wave B. Transverse Wave D. Mechanical Wave 5. Which statement is true about pitch? A. Pitch is directly proportional to intensity. B. Pitch is inversely proportional to intensity. C. Pitch is inversely proportional to frequency. D. Pitch is directly proportional to frequency. 6. What is the SI unit of frequency? A. Hertz B. Second C. Meter D. Meter per second 7. It is a vibrational frequency beyond 20 000 Hz. A. Infrasonic Frequency C. Supersonic Frequency B. Ultrasonic Frequency D. Megasonic Frequency 8. A Low frequency sound has a pitch A. Low B. High C. Moderate D. Strong 9. What does a wave carry? A. Energy B. Particles C. Matter D. Molecule 10. It refers to the number of cycles occuring per unit of time. A. Amplitude B. Frequency C. Period D. Wavelength
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