Question

Sound waves transfer

• A. energy
• B. Momentum
• C. Both energy and momentum
• D. Only energy not momentum

Answer 1

The Correct Option is C

Sound waves transfer both energy and momentum.

The sound wave moves by applying and releasing pressure to the particles in the medium in the direction of propagation.
Energy and momentum are also exchanged when a sound wave that mimics a mechanical wave moves.
Particles of solid or air are vibrated as sound passes through them, transferring energy.

When energy leaves a sound source, it causes patterns of disturbances called sound waves. Sound is the vibration that travels through a material like a gas, liquid, or solid as an audible wave of pressure.

The following are a few instances of sound waves:

• the tremors that occur in the throat when speaking
• The sound of a mobile phone ringing
• a musical instrument's sound

A sound is a type of wave that travels through a medium at various frequencies until it reaches our ears and is audible to us. A sound is a type of vibration that travels through a medium as mechanical waves. Solid, liquid, and gaseous media all allow for the propagation of sound waves. The sound waves travel in the solid medium relatively faster as compared to the liquid and gaseous medium. 

Discover more from this chapter: Waves
 

Answer 2

The correct answer is Option C) Both energy and momentum

Real Life Applications

Some real-life examples of sound waves are 
1. Speech: Sound waves in the form of speech is generated when our vocal cords vibrate. 
2. Music: Music is also a sound wave of different frequencies and amplitudes. 
3. Thunder: The sound of lightning is known as thunder. 
4. Animal calls: To communicate with each other many animals use sound waves. 

Question can also be asked as

1. How do sound waves travel? 
2. What is the mechanism of sound wave propagation? 
3. What are the factors that affect the speed of sound? 
4. How do sound waves interact with matter? 

Answer 3

Sound is simply defined as the vibrations propagating in the medium in the form of mechanical waves. Sound can be expressed as: “A vibration which is seen to propagate as an audible wave of pressure, via a medium such as a gas, liquid or solid.” 

• According to physics, sound is a vibration that creates an acoustic wave that passes through all solid, liquid, and gaseous materials.
• Even a gaseous medium may carry sound. There is something audible about it.
• various media have various sound speeds.
• Another definition of sound is the receipt of mechanical waves and the brain's interpretation of those waves.

What is a Sound Wave?

Sound waves can be defined as:

“The patterns of disturbances which are caused by the movement of energy traveling via a medium (examples include air and water)”
 

• It is a technique for moving energy in the form of longitudinal mechanical waves from one location to another.
• Sound waves cannot travel in a vacuum and need a medium to do so.
• When a disturbance occurs in a medium, sound waves are created, and sound waves move longitudinally, which means that the vibration of the particles is parallel to the direction of the transmission of the energy wave.
• A zone of high and low pressure is created in the medium as a result of the particle motion.
• Compression and rarefaction are terms used to describe the high-pressure and low-pressure zones, respectively.
• These areas transfer to a different medium, which is also responsible for the sound's transmission there.

Types of Sound Waves

The three main types of Sound Waves are elaborated below:

Longitudinal Sound Waves
​The longitudinal waves are the waves in which the motion of particles of the medium is parallel to the sound waves. While in transverse waves the particles of medium travel perpendicular to the direction of propagation of sound waves.

Mechanical Sound Waves
​Generally, sound waves are mechanical waves that require a medium for propagation. When the disturbance is produced in the medium the energy is transferred from particle to particle through mechanical waves. For example, if a string is touched the violations are reached at the end through the propagation of mechanical waves.

Pressure Sound Waves
The sound waves travel in the medium between high-pressure and low-pressure regions such as compression and rarefactions. Due to this sound waves can be considered pressure waves. For example, the human ear hears the sound from the surrounding environment through high-pressure and low-pressure regions by pressure waves.