Science Sound Waves

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Energy Wave

the transmission of energy through a medium or space

sound

1. the sensation produced by stimulation of the organs of hearing by vibrations transmitted through the air or other medium.

vibrations

repetitive, back-and-forth movements around an equilibrium point,

sspeaker

Person or object that speaks out annocning out words or phrases

Electrommanic Force

The fundamental force associated with electric and magnetic fields.

Crest

The highest or head part of something

Trough

the lowest point or valley of a wave (like water or light), the opposite of a crest, crucial for measuring wavelength and amplitude

wave length

the distance, measured in the direction of propagation of a wave,

ampltitude

he maximum displacement or intensity of a wave (like sound, light, or water) from its resting or equilibrium point,

Frequency

The state or fact of being frequent; frequent occurrence.

rest line

a flat, horizontal line parallel to the time axis, showing zero change in position over time

Pitch

How high or soft a sound is.

Echolocation

time for an echo to return and the direction from which it returns, as by radar or sonar.

Waves transfer

Volume

how high or low a sound is.

• Compression Wave

a shock wave that compresses the medium through which it is transmitted.

Wave speed

how fast a wave travels, calculated by multiplying its wavelength by its frequency

Medium

the substance or material (solid, liquid, gas, or even vacuum) that allows energy, like sound, light, or heat, to travel or propagate from one point to another, acting as a carrier for waves or signals

thunder

1. a loud, explosive, resounding noise produced by the explosive expansion of air heated by a lightning discharge.

Waves transferthrough a medium or empty space. 

   

energy

A section of a sound wave where the particles are crowded together is called a

compression.

How does a speaker work? Refer to the diagram below.

One of the speaker's magnets is a permanent magnet (meaning that it is always magnetized) and the other is an electromagnet meaning it needs electricity to run through it to work.

When an electrical signal is sent to the speaker, it creates a fluctuating magnetic field that pushes and pulls the coil, (push and pull force) causing it to move back and forth with the attached speaker cone. 

The cone vibrates and causes air molecules to collide with each other

transferring energy like a domino effect, until it reaches our ears.

When you increase the frequency of a transverse wave,

Circle One:  Wavelength will increase

    Wavelength will decrease 

 Count how many full waves there are on both models.

TOP 1_ BOTTOM 5_

6. Which wave has a higher frequency?      

      TOP ____ BOTTOM X_

7. Which wave has lower energy?     

    TOP X_  BOTTOM ___

8. Which wave has a greater (higher) pitch?     

TOP ____  BOTTOM X!_

9.What can these waves travel through?

Solids   Liquids   Gases 

10. Explain how bats locate their insect prey with low and high frequency sound waves. Use the word Echolocation.

 Using a process called echolocation, bats emit high-frequency sound waves (ultrasound) that bounce off objects in the environment, and then interpret the returning echoes to determine the location, size, and shape of its prey.

A —- ruler vibrates more slowly, so has a lower frequency. A shorter ruler vibrates more quickly so has a —-

longer

height