Sound Chapter 48 Sound is a form of Energy Sound is caused by something been made to vibrate.

Slides:

Advertisements

Similar presentations

Advertisements

Sound By An English Gentleman Sound is Energy Sound is caused by the movement of the medium it is travelling in Anything that makes sound vibrates.

How Sound Travels Sound is a mechanical wave It moves by vibrating particles in: –Solids –Liquids –Gases Sound can not travel in a vacuum (empty space)!!!

 Some animals such as bats, use ultrasound waves to detect obstacles and objects around them.  Ultrasounds are reflected of surfaces or objects and.

+ Perceiving Sound. + Before we start! A review of Light.

Vibrations Sound waves are compression waves. They are made of atoms being pushed, or compressed, by other atoms. Why wouldn’t sound waves carry in.

17.4 Sound and Hearing Sound waves are longitudinal waves that travel through a medium. Many behaviors of sound can be explained by using a few properties:

Sound Name: ________________ Class: _________________

1.Sound must have a medium through which to travel. Through which medium – solid, liquid, or gas – does sound travel faster? 2.How are different musical.

20 pt 30 pt 40 pt 50 pt 10 pt 20 pt 30pt 40 pt 50 pt 10 pt 20 pt 30 pt 40 pt 50 pt 10 pt Sound.

13/10/2015 Physics 3 Sound. 13/10/2015 How sound travels… As we know, sound waves are formed when something vibrates. But how does the sound reach our.

Sound Overview The Facts of Sound The Ear and Sound Sound Vocabulary Musical Instruments and Sound.

 Sound waves carry information to your ears.  Most people hear sounds between 20 hertz and 20,000 hertz.  Sound waves are longitudinal waves— compressions.

SOUND NOTES SOUND NOTES (Click title to view video)

Chapter 12 Sound Characteristics of Sound Sound can travel through any kind of matter, but not through a vacuum. The speed of sound is different.

Sound Vibration and Motion.

Phy 103: Fundamentals of Physics III Chapter 20: Sound Lecture Notes.

PHYSICS OF SOUND How sound works WHAT IS SOUND?

Sound and Hearing Properties of Sound Waves, Ultrasound, The Doppler Effect.

SOUND WAVES are the result of VIBRATIONS

EQ: How do different mediums affect the speed of sound?

Sound. Aim: To learn about the physics of sound In this topic we will learn that: Sound is form of energy Sound is produced by vibrations Sound needs.

Jeopardy Q 1 Q 2 Q 3 Q 4 Q 5 Q 6 Q 16Q 11Q 21 Q 7Q 12 Q 17 Q 22 Q 8 Q 13 Q 18 Q 23 Q 9Q 14Q 19Q 24 Q 10Q 15 Q 20Q 25 Final Jeopardy Waves Terms People.

SOUND SECONDARY 3 PHYSICS. NATURE AND PRODUCTION OF SOUND Sound is….. A form of energy an example of longitudinal wave Produced by vibrating sources placed.

Sound Chapter Properties of Sound Sound waves – Longitudinal Waves – Caused by vibrations – Carry energy outward, which hit your ear.

Beath High School - Int 1 Physics1 Intermediate 1 Physics Sound and Music Sound Waves Speed of Sound Using Sound Amplified Sound.

Sound. Characteristics of Sound Intensity of Sound: Decibels The Ear and Its Response; Loudness Interference of Sound Waves; Beats Doppler Effect Topics.

Section 4: The Nature of Sound. Sounds All sounds are caused by something that vibrates. Your vocal cords vibrate in relation to controlled bursts of.

To know how ultra sound works and how it compares to x-rays.

Sound By Miss Buicke.

Sound Lesson 2. Previously… Sound as product of vibrations Longitudinal nature of sound Medium required for transmission of sound Differing speed of sound.

PHYSICS – Sound.

Chapter 12 Sound Characteristics of Sound Sound can travel through any kind of matter, but not through a vacuum. The speed of sound is different.

Sound Chapter Properties of Sound  Sound waves are caused by vibrations and carry energy through a medium.  The speed of sound depends on the.

Sound What is sound? It is made when an object or material vibrates. A vibration is a fast, backwards and forwards movement that repeats many times.

What is sound? Sound is a longitudinal wave which travels through the air through a series of compressions and rarefactions.

Intro to waves. The source of all waves is something that vibrates Wave Description.

~ Sound ~ The Nature of Sound  Speed of Sound  Human hearing  Doppler effect  “Seeing” with sound.

Sound Energy Notes.

Lecture 44 – Lecture 45 Sound Ozgur Unal

Sound and Light Chapter 12.

Sound Holt Chapter 12.

09/11/2018 Sound and Hearing.

Unit 6 Chapter 18 & 19 Sound and Light

KS3 Physics 8L Sound and Hearing.

Waves & Sound A. Waves 1. The nature of waves

Jeopardy – 100 pts each Q 1 Q 6 Q 11 Q 16 Q 21 Q 17 Q 2 Q 7 Q 12 Q 22

Unit 5 Waves Ch. 21 Sec. 1 & 2 What is Sound?.

Sound As we know, sound waves are formed when something vibrates. But how does the sound reach our ears? Air molecules 2) The vibrations pass through.

Sound and Hearing Click to move on Mike Turner, Apr

Reviewing Main Ideas The Nature of Sound

The Physics of Sound.

Sound 4th Grade Science.

Vibrations Sound waves are compression waves. They are made of atoms being pushed, or compressed, by other atoms. Why wouldn’t sound waves carry in.

Sound Chapter 47.

Sound JC Physics.

Vibrations Sound waves are compression waves. They are made of atoms being pushed, or compressed, by other atoms. Why wouldn’t sound waves carry in.

WHAT IS SOUND ENERGY? CHAPTER 14 SECTION 2.

Vibrations Sound waves are compression waves. They are made of atoms being pushed, or compressed, by other atoms. Why wouldn’t sound waves carry in.

Sound The Nature of Sound.

How is Sound produced? By the end of the lesson you should be able to:

Presentation transcript:

Sound Chapter 48

Sound is a form of Energy Sound is caused by something been made to vibrate.

Sound is a form of Energy

These vibrations then travel through a medium, such as air. When they reach the eardrum they cause it to vibrate and our brain detects the sound.

Sound needs a medium in which to travel. Sound needs a medium in which to travel. It cannot travel through a vacuum. As the air is removed from the Bell jar the sound from the bell gets weaker and weaker until it cannot be heard anymore.

Sound needs a medium

Echoes An Echo is a reflection of sound. Bats use echoes to determine their position

Experiment to show the reflection of sound Set up apparatus as shown. Result The metal sheet reflects the sound. The angles i and r are equal.

Reflection of Sound

Ultrasound Bats make use of this to avoid obstacles. They emit ultrasound(a note of high frequency that humans cannot hear) and can determine distance by the time it takes for the sound to return. Ultrasound is also used in medicine to see inside the body and to shatter gallstones and kidney stones.

Sonar Ultrasound echoes are used by ships to determine the depth of sea below them.

Speed of Sound In air, sound travels at a speed of 340m/s. It travels faster in liquids and fastest of all through solids. Light travels much faster than sound. An example of this is thunder and Lightning.

Hearing protection Measuring the loudness of sound. The decibel is the unit used to compare the loudness of sounds. Regular exposure to noise above 85 decibels could be harmful if ear protection is not worn.

decibels circular saw at 2m quiet countryside pin being dropped can just be heard loud bell personal stereo aircraft overhead Measuring loudness – the decibel scale