Amplitude

Q.

What are the wavelength, frequency, time period, and amplitude of a sound wave?

Q. What is the relation between Intensity and amplitude of a sound?

1. $Intensity\alpha Amplitude$
2. $Intensity\alpha \frac{1}{(Amplitude{)}^2}$
3. $Intensity\alpha (Amplitude{)}^2$
4. $Intensity\alpha \frac{1}{\left(Amplitude\right)}$

Q. What is the SI unit of amplitude ?

Q.

What are the properties of sound?

Q.

Define the term amplitude of a wave. Write its S.I. unit.

Q. If the amplitude of the vibration is large, the sound is feeble.

1. True
2. False

Q. Statement 1: The higher the frequency of a sound, the higher is its pitch.
Statement 2: The higher the amplitude of a sound, the lower is its loudness.

1. Statement 1 only
2. Statement 2 only
3. Neither statement 1 nor 2
4. Both statement 1 and 2

Q.

Name the factor on which loudness and softness of sound depends on.

Q.

Is amplitude a scalar or vector physical quantity?(sound wave).Also mention the reason for what type of quantity it is.

Q.

Explain the term 'amplitude' of a wave. Draw the diagram of a wave and mark its amplitude on it.

Q. The maximum displacement of a particle from its mean position is called _______.

1. amplitude
2. pitch
3. frequency
4. wavelength

Q. What is the amplitude of the wave in the diagram below?

1. 0.03 m
2. 0.04 m
3. 0.05 m
4. 0.06 m

Q.

If the loudness of sound is to be increased 4 times then how many times should the amplitude be increased?

1. 8

2. 16

3. 4

4. 2

Q. The maximum displacement of the vibrating body from its mean position is called ___________.

1. 
   frequency
2. 
   pitch
3. 
   amplitude
4. 
   vibration

Q.

A wave is introduced into a thin wire held tight at each end. It has an amplitude of $3.8cm$, a frequency of $51.2Hz$ and a distance from a crest to the neighbouring trough of $12.8cm$. Determine the period of such a wave.

Q. In order to reduce the loudness of a sound, we have to ________.

1. decrease the frequency of the sound
2. increase the frequency of the sound
3. decrease the amplitude of the sound
4. increase the amplitude of the sound

Q. Which of the following statements is correct regarding the graphs shown? (Assume that the graphs are drawn to the same scale.)

1. Both the waves have the same frequency.
2. Both the waves have the same amplitude.
3. The frequency of wave A is higher than that of wave B.
4. The amplitude of wave A is higher than that of wave B.

Q.

Large amplitude of sound vibrations will produce

1. Loud sound

2. Soft sound

3. Shrill sound

4. Feeble sound

Q.

What are the 2 properties of waves?

Q.

What is the difference between a low pitched and high pitched sound?

1. high pitched sound has a higher frequency than low pitched sound

2. high pitched sound has a larger amplitude

3. low pitched sound has a larger amplitude

4. both sounds have same frequency but different amplitudes

Q. A: Sound travels faster in warmer regions as compared with colder regions.
B: Sound travels fastest in solids.
Which of the following statement is true?

1. Statement A only
2. Statement B only
3. Neither statement A nor B
4. Both statement A and B

Q. Which of the following factors affect the loudness of sound?

1. Distance from the source of sound.
2. Amplitude of the wave.
3. Frequency of the sound
4. Sensitivity of the listener.

Q. Which of the following characteristics of sound change when loudness is changed?

1. Wavelength
2. Amplitude
3. Frequency
4. Velocity

Q. Mexican waves observed in stadiums are analogous to waves.

1. longitudinal
2. transverse
3. non-mechanical

Q.

Mention five characteristics of sound waves? [5 MARKS]

Q. Why different sounds are produced by glasses with different water levels of jaltarang?

Q.

Higher the frequency of the sound wave, _________ is its pitch.

Q. Define Amplitude.

Q.

Inside a physics lab: (vibrating tuning fork does SHM)

Teacher: this experiment is about finding the frequency of oscillation of different tuning forks.

You hit it against something and take it close to this device [pointing at the device] which measures the frequency. The oscillation of a tuning fork is simple harmonic.

Student X hits a thick tuning fork lightly and finds out its frequency as f. student x then hits a thin one lightly and finds its frequency to be f'. student x thinks if he hit the thick one hard enough its frequency might come out to be f'. The student tries this.

1. He/she finds out that this is possible

2. The frequencies never become same

3. The frequency does become equal/or close on hitting a bit more harder

4. He/she finds out that it is not possible.

Q.

Why does sound become faint with distance?