Sound and Sound Waves
5th GRADEOES
I Can…Identify the properties and characteristics of a sound wave
Describe the properties and characteristics of sound waves
Discover how sound waves work
Monday’s AgendaIntroduction to Sound and Sound Waves
KWL Chart
Sound and Sound Waves presentation
Study Jams Video
Write vocabulary from presentation and video
SOUND and SOUND WAVES
Sound is the vibration of any substance such as solid, liquid, and gas.
When these substances vibrate, or move rapidly back and forth, they produce sound.
The only place in which sound cannot travel is in a vacuum or space!
Sound is measured in decibels of sound pressure.
The vibrations that produce sound are not the result of an entire volume moving back and forth at once.
Instead, the vibrations occur among the individual molecules of the substance and the vibrations move through the substance in sound waves
As sound waves travel through the material, each molecule hits another and returns to its original position.
Sound waves are longitudinal (compression)
wavesThe rapid back-and-forth vibration of an object creates the longitudinal or compression waves of sound.
Longitudinal waves are waves that oscillate in the same path that the sound wave is moving.
Sound mediums
A medium is a material that sound, a form of energy, NEED to transfer
Speed of soundSolid : Fast speed
Liquid : Medium speed
Gas : Slow Speed Standard Temperature and Pressure = 3.31 x 102 m/s
Vacuum : No Sound (outer space)
Characteristics and Properties of Sound Waves
There are several basic characteristics or properties of sound waves: wavelength, frequency, pitch, amplitude, and speed (velocity)
Wavelength is the distance between any point on a wave and the
equivalent point of the next phase. Literally, the length of a wave.
Frequency is the number of times the wavelength occurs in one second. Measured in kilohertz
(Khz), or cycles per second. The faster the sound source vibrates, the higher the frequency.
PitchHow the brain interprets the frequency of an emitted sound is called the pitch.
We already know that the number of sound waves passing a point per second is the frequency.
The faster the vibrations the emitted sound makes (or the higher the frequency), the higher the pitch. Therefore, when the frequency is low, the sound is lower.
The amplitude is the strength or power of a wave signal. The "height" of a wave when viewed as a graph. Higher amplitudes are
interpreted as a higher volume while lower amplitudes have lower volume. The amplitude
of a sound is known as its loudness.
SpeedThe speed of sound refers to how fast the disturbance or sound is passed from particle to particle. It can also be defined as the distance that a point on a wave travels per unit of time, it is often expressed in units of meters/second.
Study Jams Video TIME!
Students be sure to copy the vocabulary from the movie. You may add on to the words and definitions you already have.
Tuesday’s AgendaBellwork: Write the letter next to the correct word! Answers ONLY.
Review yesterday’s lesson and vocabulary
Sound worksheet
Wednesday’s Bellwork____1. Wavelength a. strength or power of a
wave signal
____2. Frequency b. how fast the disturbance or sound is passed from particle to particle
___3. Amplitude c. the number of times the wavelength occurs in
one second
___4. Speed d. length of a wave
___5. Pitch e. How the brain interprets the frequency
of an emitted sound
Wednesday’s Agenda
Sound Waves RAP!
Bill NYE!
Sound Stations
**http://www.discoveryeducation.com/teachers/free-lesson-plans/the-phenomenon-of-sound-waves.cfm
(Teachers: Open this up before stations! )
Sound Stations
There are 5 stations.
Each group or tribe will go to each station and complete the activity.
Each student will receive a worksheet for each station
. Answer the questions on each worksheet for every station that you complete.
MAD SCIENTISTS TIME!!
Thursday’s Agenda
Continue Sound Stations
MAD SCIENTISTS TIME!!
BELLWORKDirections: In your Science notebooks, number your paper 1-5. Then FILL IN THE BLANK SPACES. You must write the whole word.
THE PROPERTIES/CHARACTERISTICS OF SOUNDWAVES ARE:
1. __A__ __ L __ __ __ T __
2. A __ __ __ __ __ __ __ E
3. __ P __ __ __
4. F __ __ Q __ __ __ __ Y
5. __ I __ __ __
5.3.2 Know the properties/characteristics of light and sound waves
I Can…Identify the properties and characteristics of a sound wave
Describe the properties and characteristics of sound waves
Discover how sound waves work
Friday’s AgendaContinue Sound Stations
MAD SCIENTISTS TIME!
Mini Books (compile worksheets from stations)
Update KWL Charts
Review the properties of sound waves