Skip to main content

Sound, Sound Waves, and Propagation of Sound Waves in Physics Solved MCQs

Sound, & Sound Waves, including Technological Use of Sound Waves 


Sound Solved MCQs


1. What type of wave is a sound wave?

   a. Transverse wave

   b. Longitudinal wave

   c. Electromagnetic wave

   d. Standing wave


 2. Which of the following properties is NOT associated with sound waves?

   a. Amplitude

   b. Wavelength

   c. Frequency

   d. Refraction


3. The speed of sound in a medium depends on:

   a. Amplitude

   b. Frequency

   c. Wavelength

   d. Medium's properties


4. What is the unit of frequency?

   a. Hertz (Hz)

   b. Decibel (dB)

   c. Watt (W)

   d. Joule (J)


  5. The phenomenon of the Doppler effect is associated with:

   a. Reflection

   b. Refraction

   c. Diffraction

   d. Change in frequency due to motion


6. What is the threshold of hearing for the average human ear in decibels (dB)?

   a. 20 dB

   b. 50 dB

   c. 100 dB

   d. 120 dB


7. Which property of sound is responsible for differences in pitch?

   a. Amplitude

   b. Frequency

   c. Wavelength

   d. Velocity


8. What is an echo?

   a. Absorption of sound

   b. Reflection of sound

   c. Refraction of sound

   d. Diffraction of sound


9. Which part of the ear is responsible for transmitting vibrations to the inner ear?

    a. Pinna

    b. Tympanic membrane

    c. Cochlea

    d. Eustachian tube


10. In a longitudinal sound wave, the particles of the medium move:

 a. Perpendicular to the direction of the wave

 b. Opposite to the direction of the wave

 c. Parallel to the direction of the wave

 d. In circular patterns


11. The region of high pressure in a longitudinal sound wave is called:

   a. Rarefaction

   b. Compression

   c. Trough

   d. Crest


12. Which property of a medium affects the speed of sound in it?

   a. Density

   b. Temperature

   c. Humidity

   d. All of the above


13. What happens to the wavelength of a sound wave when its frequency increases?

   a. Wavelength increases

   b. Wavelength decreases

   c. Wavelength remains constant

   d. Wavelength becomes unpredictable


14. The unit of frequency of a sound wave is:

   a. Hertz (Hz)

   b. Decibel (dB)

   c. Newton (N)

   d. Watt (W)


15. Which characteristic of a sound wave is related to its loudness?

   a. Amplitude

   b. Frequency

   c. Wavelength

   d. Speed


16. Doppler Effect is associated with:

   a. Light waves

   b. Sound waves

   c. Both A and B

   d. Neither A nor B


17. When a sound wave travels from air into water, its speed will generally:

    a. Increase

    b. Decrease

    c. Remain the same

    d. Become unpredictable


18. What is the speed of sound in air at standard room temperature (approximately 20 degrees Celsius)?

 a) 343 meters per second

 b) 300,000 kilometers per second

 c) 1,000 meters per second

 d) 150 meters per second


19: How does the speed of sound change with the temperature of the medium?

 a) Increases with temperature

 b) Decreases with temperature

 c) Remains constant

 d) Unrelated to temperature


20: What is the primary factor affecting the speed of sound in a gas?

 a) Temperature

 b) Pressure

 c) Humidity

 d) Altitude


21: How does the density of a medium affect the speed of sound?

 a) Higher density increases speed

 b) Lower density increases speed

 c) Density has no effect

 d) Density decreases speed


22. What is the primary factor influencing the speed of sound in a material?

   a) Temperature

   b) Pressure

   c) Density

   d) Volume


23. In which medium does sound generally travel fastest?

   a) Solids

   b) Liquids

   c) Gases

   d) Depends on the frequency


24. How does the speed of sound change with temperature in air?

   a) Increases with temperature

   b) Decreases with temperature

   c) Unaffected by temperature

   d) Depends on the humidity


25. What is the approximate speed of sound in air at room temperature?

   a) 343 meters per second

   b) 500 meters per second

   c) 768 meters per second

   d) 1000 meters per second


26. How does the speed of sound compare between solids, liquids, and gases?

a) Sound travels fastest in solids, followed by liquids, and then gases.

b) Sound travels fastest in liquids, followed by solids, and then gases.

c) Sound travels fastest in gases, followed by solids, and then liquids.

d) Speed of sound is the same in all three.


27. What term describes the phenomenon when sound waves encounter an obstacle and change direction?

   a) Reflection

   b) Refraction

   c) Diffraction

   d) Absorption


28. In which medium does sound travel without a medium (vacuum)?

   a) Solids

   b) Liquids

   c) Gases

   d) None of the above


29. What property of a material affects the speed of sound waves within it?

   a) Elasticity

   b) Conductivity

   c) Transparency

   d) Hardness


30. How does the frequency of a sound wave affect its speed?

a) Higher frequency increases speed

b) Lower frequency increases speed

c) Frequency does not affect speed

d) Speed is inversely proportional to frequency


31. What unit is commonly used to measure the speed of sound?

    a) Meters per second (m/s)

    b) Hertz (Hz)

    c) Decibels (dB)

    d) Newtons (N)


32. What is the primary factor affecting the speed of sound in a medium?

a. Temperature  

b. Pressure  

c. Density  

d. Humidity


33. How does the speed of sound change with an increase in temperature in a gas medium?

a. It increases  

b. It decreases  

c. Remains constant  

d. Unpredictable


34. What happens to the speed of sound as you descend deeper into a liquid?

a. It increases  

b. It decreases  

c. Remains constant  

d. Depends on the liquid's density


35. Which factor has the least impact on the speed of sound in a given medium?

a. Frequency  

b. Amplitude  

c. Wavelength  

d. Medium's composition


36. What is the primary source of noise pollution?

   a. Echo

   b. Animals

   c. Human activities

   d. Wind


37. Which of the following is a natural cause of echo?

   a. Construction

   b. Mountains

   c. Traffic

   d. Factories


38. What is the term for the reflection of sound that arrives at the listener more than once?

   a. Refraction

   b. Reverberation

   c. Absorption

   d. Amplification


39. How can echo be reduced in closed spaces?

   a. By increasing sound intensity

   b. By adding sound-absorbing materials

   c. By playing loud music

   d. By installing more speakers


40. Which of the following is a health impact associated with prolonged exposure to noise pollution?

   a. Improved sleep

   b. Reduced stress

   c. Hearing loss

   d. Enhanced concentration


41. What is the acceptable noise level during the day in a residential area, according to standard guidelines?

   a. 30 dB

   b. 50 dB

   c. 70 dB

   d. 90 dB


42. What is the primary factor contributing to noise pollution in urban areas?

   a. Echo

   b. Wildlife

   c. Industrial activities

   d. Natural disasters


43. How does noise pollution affect wildlife?

a. Enhances communication

b. Causes habitat destruction

 c. Attracts more species

 d. Improves reproductive success


44. Which of the following is a measure to control noise pollution from vehicles?

   a. Increase speed limits

   b. Use noise-canceling headphones

   c. Implement traffic management

   d. Play loud music while driving


45. What role does vegetation play in reducing noise pollution?

    a. Increases noise levels

    b. Acts as a sound barrier

    c. Amplifies sound

    d. Has no impact on noise


46. What is the primary principle behind ultrasound imaging?

a) Radiofrequency waves  

b) X-ray radiation  

c) Sound waves  

d) Magnetic fields


47. Which medical imaging technique utilizes high-frequency sound waves to visualize internal structures of the body?

a) MRI  

b) CT scan  

c) Ultrasound  

d) PET scan


48. What does echocardiography specifically focus on imaging?

a) Brain structures  

b) Heart structures  

c) Lung structures  

d) Abdominal structures


49. Ultrasonography is commonly used for imaging during:

a) Bone scans  

b) Pregnancy  

c) Blood tests  

d) Dental procedures


50. SONAR is an acronym for:

a) Sound Navigation and Ranging  

b) Solar Observation and Radar  

c) Satellite Orbiting and Navigational Radar  

d) Seismic Observation and Noise Reduction


51. What is the primary technology behind ultrasound imaging in medical diagnostics?

   a) Infrared waves

   b) Radio waves

   c) Sound waves

   d) Light waves


52. Which property of sound waves is utilized in sonar technology for underwater navigation?

   a) Frequency

   b) Amplitude

   c) Refraction

   d) Reflection


53. In medical science, what term is used to describe the frequency shift observed in sound waves reflected from moving objects, such as blood cells?

   a) Doppler effect

   b) Resonance

   c) Echo phenomenon

  d) Oscilliatory effort


54. How are sound waves employed in the technology of focused ultrasound surgery?

   a) Imaging

   b) Heating and ablating tissue

   c) Communication

d) None of them 


55. Which characteristic of sound waves is crucial for the functioning of cochlear implants in assisting individuals with hearing impairments?

   a) Wavelength

   b) Amplitude modulation

   c) Frequency modulation

  d) All of them 


56. What is the principle behind using ultrasonic cleaning devices in various industries?

   a) Compression waves

   b) Rarefaction waves

   c) Cavitation

    d) None of them 


57. In what way do sound waves contribute to non-destructive testing (NDT) of materials in engineering applications?

   a) Creating vibrations

   b) Detecting flaws and inconsistencies

   c) Generating heat

   d) All of them 


58. What is the unit of measurement for the intensity of sound waves?

   a) Decibel (dB)

   b) Hertz (Hz)

   c) Watt (W)

  d) None of them 


59. How is acoustics applied in the development of noise-canceling technology in headphones?

   a) Absorption of sound

   b) Destructive interference

   c) Amplification of sound

   d) All of them 


60. Which medical imaging technique relies on the detection of echoes produced by sound waves bouncing off internal structures within the body?

   a) Magnetic Resonance Imaging (MRI)

   b) Computed Tomography (CT)

   c) Ultrasound

   d) All of them 


Further Suggested Physics Related Topics for Reading 


Electro-magnetic Spectrum Solved MCQs 

Waves & Propagation of Waves in Physics Solved MCQs 

Physics and its Branches Solved MCQs 

Laws in Physics Solved MCQs

Kinematics (Rest & Motion) Solved MCQs

Geometrical Optics in Physics Solved MCQs

Sound & Sound Waves Solved MCQs

Watt, Volt, Current, Diode, Resistor Solved MCQs

Random & General Physics Solved MCQs 

Introduction to Physics Solved MCQs 

Top 10 Muslim Scientists Short Notes

Muslim Scientists Solved MCQs

Labels:
Location: Sukkur, Sindh, Pakistan

Comments

Post a Comment

Most Read Blogs

Single National Curriculum (SNC): Its Pros & Cons

Single National Curriculum 2020  Background Pakistan is a multi-lingual, multi-cultural, and multi-ethnic country where around 74 different languages are spoken. Out of these 74 different languages, 66 languages are indigenous while the remaining 8 are non-indigenous. Urdu is the national language while English is the official language of Pakistan.  Similarly, Pakistan is the thick and second-largest Muslim-populated country in the world. Approximately 96.5% (≈210 million) people are Muslims, out of which around 85-90% are Sunni and the remaining are the Shia sect Muslims.  These two major sects are further subdivided into different groups on the basis of their particular schools of the so-called Islam ic law. On the other hand Pakistani nation is divided on the basis of political parties, ethnicity, sectarianism, culture, customs, traditions, rituals, socio-economics, and educational differences.  The current government has therefore developed and devised Single N...
5 comments
Read more

School, Community, and Teacher (B.Ed Honours Course)

School, Community, & Teacher  (SCT) in the Context of Teacher Education (B.Ed Honours Course) Background The triad of school, community, and teacher (SCT) forms a critical intersection within the educational landscape, creating an integrated ecosystem essential for fostering a healthy and sustainable teaching and learning environment . In the realm of teacher education, the terms school, teacher, and community carry multifaceted meanings that vary depending on contextual factors. To fully comprehend the overarching goals and objectives of teacher education, it is imperative to explore the synergies and intersections inherent in this SCT framework. In this discussion, we will examine each component of the SCT triad in detail, while also considering related concepts that enrich our understanding of this complex interplay. By unpacking these terms, we aim to illuminate their significance and the ways in which they collectively contribute to a robust educational experience. The sch...
Post a Comment
Read more

Dilema of Democracy & Political Leadership Crisis in Pakistan

Dilemma of Democracy & Political Leadership Crisis in Pakistan Overview Since mid 20th century,  Democracy is being considered the most accomplished process and a form of government where only people’s representatives have the right and authority to run the affairs of the state including forming certain constitutional rules and regulations.  Through democracy, people choose their representatives following a well-defined system of voting. The elected representatives then govern the affairs of the state on behalf of their people for a certain period of time (usually 4 to 5 years).  These representatives actually ensure the authority and rule of law for their people in the larger interests of any nation, state, or country. On the other hand, they are also held accountable and responsible for their actions and exercising of the powers within certain limitations as defined in the constitution or legislated through parliament.  Although Pakistan is a pure democratic...
Post a Comment
Read more

AFGHANISTAN CRISES: WHERE DOES PAKISTAN STAND?

Afghanistan Crises and Pakistan  Background According to history, Afghanistan has remained a war zone and a plan to invade central and south Asia for a long time. All of the invaders' troops entered South Asia through Afghanistan, from the Aryans to the Mughals. Afghanistan was the target of two major invasions in recent history. The former Soviet Union (USSR) launched its first invasion in December 1979, which lasted until 1989 and culminated in the dissolution of the Soviet Union into a number of distinct states. However, a significant portion of the formal USSR's territory, now known as the Russian Federation, is still there. As a result of the so-called September 11, 2001 attacks on the World Trade Center in New York, the United States of America (USA) and its NATO (North Atlantic Treaty Organization) allies, including Great Britain, launched the second invasion in 2001. Al-Qaeda's leader, Usama Bin Ladin, was allegedly blamed for the 9/11 attacks and claims that Al-Qa...
Post a Comment
Read more

SWOT Analysis within the Context of Education

 SWOT Analysis in Education for Curriculum Development, Classroom Management, and Planning Introduction   It was the Stanford Research Institute (SRI) which coined the term SWOT Analysis during the 1960s. Initially, the term was used for business management consultancy but later on, researchers and professionals started using it in different fields mainly for planning purposes. SWOT  analysis is a strategic planning tool or a framework which is used to identify and evaluate the Strengths, Weaknesses, Opportunities, and Threats related to an organization or a specific project including setting its standing operating procedures (SOPs).  It is widely used in business studies, politics, strategic military planning, think tanks, policy-making, international relations, socio-economic as well as socio-political dimensions, and education etc. Similarly, in the context of education, SWOT analysis provides a very comprehensive framework for assessing various aspects of educat...
Post a Comment
Read more

Social Media Literacy and Educational Approaches in the 21st Century Teaching & Learning Context: B.Ed Honours Course Content

Social Media Literacy & Modes of Education in 21st Century (B.Ed Honours) Course Content Introduction The term social media refers to the digital interaction among different social groups. One of the most integral aspects of human life in the 21st century is social media, and it has significantly transformed how individuals communicate, interact, and gain information. Social media has opened the door to new opportunities for learning and information sharing including diverse challenges for teachers and learners in the process of teaching and learning.  In less advanced countries like Pakistan, teachers are still reluctant to use social media platforms while teaching because they lack certain skills to use different social media platforms effectively. As a result of it, such teachers rely on outdated traditional methods of teaching. On the other hand, many students believe that the purpose of social media use is just for entertainment and informal interaction with digital friend...
Post a Comment
Read more

BOOKS ARE THE BEST OF ALL THE FRIENDS!

Books are the Best of all the Friends  Overview: Francis Bacon rightly said that “some books are tasted, others to be swallowed, and some few to be chewed and digested”. In his quote, Bacon emphasized that there are very few books only to be read out as wholly because they draw our attention with diligence and develop curiosity as we go on reading them further and further. Actually, books are the food for our brains and thoughts. They provide us knowledge, and deep information and develop creativity along with critical thinking skills.  Books lead us towards a world of fantasy and imagination and pose various logical and rational questions and intend to seek our reflection. According to Charles W. Eliot, “books are the quietest and most constant of friends; they are the most accessible and wisest of counselors, and the most patient of teachers”. Books are best friends and they are always ready to talk to us and share their information and experiences with us. Books are mi...
Post a Comment
Read more

We'll Meet Again: A Poem by Raja Bahar Khan Soomro

We Shall Meet Again (A Poem)   Introduction   We come across many bitter experiences in our lives. One of these bitter experiences is the separation from our loved ones. Though we don't want to be get separated but life brings such situations where we don't have any other options except separation. In this poem, I have reflected on my feelings and desires that a day will come when I'll meet again with my dearest darling. So, let's now read that when and how I'll meet with my love.                 We'll Meet Again When spring awakens in a tender bloom,   And cuckoos sing beneath the silver moon,   In midnight’s hush, where melodies cascade,   We’ll meet again, where dreams of love are made.   We’ll meet again by oceans’ endless shore,   Where mountains rise and eagle spirits soar.   In dawn’s soft glow, where shadows gently play,   Our hearts will dance in rain’s sweet,...
2 comments
Read more

Different Educational Theories & Approaches Solved MCQs

Different Education al Theories, Approaches, & Perspectives Solved MCQs   1. Which level of Bloom's Taxonomy is associated with basic recall and recognition of facts?    a) Analysis    b) Evaluation    c) Comprehension    d) Synthesis 2. At which level of Bloom's Taxonomy do students demonstrate their ability to apply knowledge in new and unique situations?    a) Knowledge    b) Comprehension    c) Application    d) Synthesis 3. Which of the following is a key component of Bloom's Taxonomy and involves breaking down information into parts to explore understandings and relationships?    a) Synthesis    b) Analysis    c) Evaluation    d) Knowledge 4. Which level of Bloom's Taxonomy involves the creation of new ideas or concepts by combining information in innovative ways?    a) Knowledge    b) Comprehension    c) Application ...
Post a Comment
Read more

KASHMIR ISSUE; WHAT IS THE WAY FORWARD?

Kashmir Issue and the Way Forward                                   Overview: Whether it was an inability and incapability of the Britishers or intentional negligence towards proper demarcation of territorial boundaries before leaving the Indian Sub-continent or even pressure on Lord Mount Batten built by the Congress party’s leadership particularly Pandit Jawaharlal Nehru, however, it has left everlasting effects and consequences in terms of loss of innocent human lives, violence, hatred, military escalations, and socio-economic tensions in the fate of the people of South Asia since 1947 to till date.  One of the greatest territorial issues and tensions which I am going to highlight through this article blog is the Kashmir issue which has been remaining the bone of contention between Pakistan and India.  The United Kingdom, currently known as England (Great Britain) which is one of th...
Post a Comment
Read more