Physics Class 10 Chapter 13: Sound

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• Class 10
• Physics
• Unit 13
• Book pages 93-120
• FBISE SSC-II

Chapter summary

Chapter 13 of Physics for Class 10 is called "Sound". It covers 20 learning outcomes of the Federal Board syllabus. You will learn to: describe the production of sound.; describe the longitudinal nature of sound waves.. Parhayi.com has 229 MCQs, 38 short questions and 21 long questions for this chapter.

Topics in this chapter

• Describe the production of sound.
• Describe the longitudinal nature of sound waves.
• State the approximate range of frequencies audible to humans as 20Hz to 20000Hz.
• Justify why sound waves cannot travel in a vacuum.
• Describe how changes in amplitude and frequency affect the loudness and pitch of sound waves.
• Describe how different sound sources produce sound waves with different timbres
• Describe an echo as the reflection of sound waves.
• Justify simple experiments to show the reflection of sound waves.
• Illustrate a method involving a measurement of distance and time for determining the speed…
• State that the speed of sound in air is approximately 330-350m/s.
• Describe that, in general, sound travels faster in solids than in liquids and faster in…
• Define ultrasound as sound with a frequency higher than 20kHz.
• Illustrate and analyze the uses of ultrasound.
• Illustrate the use of infrasound
• Analyze the effects of noise pollution on the environment.
• Justify the importance of acoustic protection.
• Describe how knowledge of the properties of sound waves is applied in the design of…
• Explain the use of soft materials to reduce echo sounding
• Explain, with examples, how sound can reflect, refract and diffract.
• Mixed topics

Sample questions

Try these questions from the chapter. The answers are for Premium students.

1. What are common sources of harmful noise? Assess their impact on human health. (3 marks)
2. Speed of sound in sea water is 1500 m/s; wavelength 45 cm. Find the frequency. (3 marks)
3. State the range of audible frequency. What are infrasound and ultrasound? (3 marks)

What Premium gives you in this chapter

• 229 MCQs with answers and explanations
• 38 short questions with full answers
• 21 long questions with answers
• 11 Learn cards
• 34 Activities and games
• chapter tests that show your weak topics

Physics explains how the world works, from motion and forces to heat, light and magnets. Learn each idea in simple steps, check the units, and practise numericals every day.