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