Physics 10 Short Questions and Answers Short Questions and Answers 10. Simple Harmonic Motion and Waves 11. Sound 12. Geometrical Optics 13. Electrostatics 14. Current Electricity 15. Electromagnetism 16. Introductory Electronics 17. Information and Communication 18. Radioactivity Related Questions: How does damping affect oscillatory motion? What is the significance of wave speed in a medium? Sound Sound-NFE Why does sound require a medium to travel? What is the effect of humidity on the speed of sound? What is the difference between audible, infrasonic, and ultrasonic sounds? What is the relation between frequency and pitch of a sound? Why do we hear sound more clearly at night than during the day? Explain how sound is produced and propagated. Describe the characteristics of sound and their significance. Explain SONAR and its applications. What is intensity of sound? What is the range of intensity of audible sound? Differentiate between loudness and intensity of sound. Define intensity level. Derive the formula for its decibel scale. Differentiate between noise and music. Explain how noise is a nuisance. What is acoustics and acoustic protection? How does their study help in the construction of different structures? What is the audible frequency range? Explain in detail. What are ultrasounds? Give their uses in different fields of life. Why does sound travel faster in solids than in liquids and gases? Why are we able to distinguish between two sounds having the same loudness?