Noise and Music

Q.

Name the object (or part) which vibrates to produce sound in the following musical instruments:

(a) Sitar (b) Dholak (c) Flute (d) Cymbals (e) Veena (f) Tabla

Q. What is shrillness of sound determined by? [1 MARK]

Q.

Give two examples of each of the following :

(a) stringed musical instruments. (b) wind musical instruments.

(c) membrane musical instruments. (d) plate type musical instruments.

Q. Which of the following is not an effect of noise pollution?

1. Lack of sleep
2. Hypertension
3. Hearing impairment
4. Enhanced concentration

Q. Unwanted sound which is unpleasant to the ears is known as ___.

1. noise
2. music
3. note
4. tone

Q.

Unpleasant sound that is very loud is called ______________.

Q.

Question 7 (b)
Identify the part which vibrates to produce sound in the following instrument.
Sitar

Q.

(a) What is the noise? Give two examples of sounds which are considered noise.

(b) What is a musical sound? Give two examples of musical sounds.

Q.

When we pluck the string of a guitar, the music is produced due to

1. Vibrations of strings only

2. Vibrations of air around guitar

3. Vibrations of both strings and body of the gutar

4. Vibrations of guitar body only

Q. How are sound waves produced in air? Describe the process of production of sound in a human larynx in brief.

Q.

What is the difference between noise and music? Can music become noise sometimes?

Q.

Give two examples each of the following:

1. String instruments 2. Wind instruments 3. Percussion instruments

Q.

Give reasons:

Avoid listening to loud music.

Q.

Question 8
What is the difference between noise and music? Can music become noise sometimes?

Q.

The instrument that produces sound by vibrating membrane are called ___________.

Q.

Question 7 (c)
Identify the part which vibrates to produce sound in the following instrument.
Flute

Q.

Give two examples of membrane instruments.

Q.

Very loud music can be considered as noise.

1. Noise

2. Music

Q.

What is noise in electronics?

Q.

Name any two common musical instruments and identify their vibrating parts.

Q. Write 5 valid points on hearing impairment. [5 MARKS]

Q.

Name one musical instrument each in which the sound is produced :

(a) by vibrating a stretched siring.

(b) by vibrating air enclosed in a tube.

(c) by vibrating a stretched membrane

(d) by vibrating metal plates.

Q. Unpleasant sound : Noise : : Pleasant sound :______. Fill in the blank.

1. Audible sound
2. Infrasound
3. Music
4. Ultrasound

Q.

Name the group in which musical instruments are classified.

Q.

A clarinet is a _______________ type of musical instrument.(stringed/reed)

Q.

Sound which is pleasant to the ear is a result of uniform periodic vibrations.

1. True
2. False

Q. State three differences between a musical sound and noise.

Q. What are all the types of media through which sound can propagate?

Q.

Which Alphabet Is An Insect?

Q.

Compare the sounds made by a Cuckoo and roar of a Tiger. Which among these two have higher pitch and what quantity determines the pitch.Also give the unit of the quantity. [3 MARKS]