# ICSE Worksheet for chapter-11 Sound class 10

#### Worksheet For class 10

This page is prepared by the Academic team of Physics Wallah which consists of ICSE Board Worksheet for Class 10 Physics. Students of Class 10 Physics can get a free Worksheet for Class 10 Physics in PDF format prepared as per the newest syllabus and examination pattern in your schools.

Standard 10 students can practice questions and answers which are given here for Physics in Grade 10 that will help them to improve their knowledge of all important chapters and their topics. Students can also download free pdf of Class 10 Physics Notes prepared by teachers and solve important problems provided here with solutions on daily basis to get more scores in school exams and tests.

If any students need to take the online test to check their concepts or undertstanding then they can visit Physics Quiz for Class 10.

## Summary

• Characteristics Of Sound - Loudness And Intensity
• Pitch And Frequency
• Quality
• Sound Intensity
• Music And Noise

### Section 1 - Objective

Q1. By reducing the amplitude of a sound wave, its:

1. Pitch increases
2. Loudness decreases
3. Loudness increases
4. Pitch decreases

Q2. Two sounds A and B are of frequencies f and 2f respectively. Then:

1. Both sounds are identical
2. B is grave, A is shrill
3. B is shrill, A is grave
4. B is louder than A

Q3. Two sounds of same loudness and same pitch produced by two different instruments differ in their :

1. Amplitudes
2. Frequencies
3. Wave forms
4. All the above

Q4. The unit of quantity on which pitch of the sound depends is:

1. Hertz
2. Meter
3. Meter/ second
4. Second

Q5. The unit of quantity on which loudness of sound depends is:

1. Meter
2. Hertz
3. Zero
4. Infinite

Q6. Pitch of high frequency sound is:

1. High
2. Low
3. Zero
4. Infinite

Q7. Voice of a friend is recognized by its:

1. Pitch
2. Quality
3. Intensity
4. Velocity

Q8. When sound waves travelling in air enter into the medium of water, the quantity which remains unchanged is:

1. Wavelength
2. Velocity
3. Frequency
4. None

### Section 2 - Subjective

• Q1. Name the unit in which loudness of sound is measured
• Q2. Define the term intensity of a sound wave. State the unit in which it is measured
• Q3. How is loudness of sound related to the intensity of wave producing it ?
• Q4. State the factors that determine
1. The pitch of a note
2. The loudness of the sound heard
3. The quality of the note
• Q5. Name the subjective property of
1. Sound related to its frequency
2. Light related to its wavelength
• Q6. Which characteristic of sound will change if there is a change in its amplitude and waveform
1. Name one factor which affects the frequency of sound emitted due to vibrations in air column.
2. Name the unit used for measuring the sound level.

### Solutions: to worksheet-11 Topic-Sound

Objective

 1. B 2. C 3. C 4. A 5. A 6. A 7. B 8. C

Subjective

Ans 1. Photon

Ans 4. Frequency

• Amplitude
• Wave form

Ans 5. Pitch

Colour

Ans 6. Loudness and Timbre

• Length of air column
• Decibel