Amplitude
Frequency
Sound
Instruments and Vibrations
Waves and their characteristics
100
Amplitude is directly proportional to this.
What is energy/size of vibration?
100
Frequency is the measure of this per second.
What are vibrations or cycles?
100
This needs to take place in an instrument for it to produce a sound.
What is vibrate?
100
This is needed for an instrument to produce a sound.
What is an outside force?
100
This is the horizontal distance between two crests or troughs
What is wavelength?
200
A sound with a low amplitude would have this sound.
What is quiet?
200
The relationship between sound and frequency is this.
What is frequency affects sounds pitch?
200
According to Tim and Moby, sound moves in this type of wave.
What is longitudinal?
200
An instrument will cause the air molecules to do this when they come in contact with one another.
What is become more tightly packed together? Or form a compression?
200
The increase of frequency has this affect on wavelength
What is decreasing wavelength?
300
Ocean waves differ from sound waves in this way.
Ocean waves are transverse and sound waves are longitudinal.
300
This is the unit for frequency.
What is hertz?
300
In order for sound to travel this needs to happen.
What is air molecules transferring their energy? Or a cycle of rarefactions and compressions?
300
A drum and xylophone are similar in this way.
What is they both need to vibrate to produce a sound?
300
In a transverse wave (phet simulator) the beads on the string move in this direction.
What is vertically? Or up and down?
400
The way we determined that sounds' volume and amplitude were directly proportional was either of these two investigations.
What was using the motion detector to show distance of a wooden rod to and from it? OR What was the online simulation changing volume?
400
Hint^^^...One method to determine that frequency is directly proportional to energy is this.
What is to measure the time one full rotation and compare to different frequencies?
400
The combination of one rarefaction and compression is known as this.
What is a cycle?
400
A record has microscopic grooves that enable this to happen.
What is the needle to vibrate at different frequencies to produce different pitches?
400
This type of wave is known as.
What is a transverse wave?
500
The motion detectors graph had this unit as its x-axis and this unit as its y-axis.
What was time(x) and distance(y)?
500
The relationship between wavelength and frequency can be described as this.
What is indirectly proportional?
500
Sound travels differently in different temperatures because of this truth about molecules at different thermal energy.
What is when molecules are at higher temperature they move faster?
500
Instruments rely on the transformation of these three energy, order not necessary, type is.
What are elastic, kinetic, and sound?
500
This is the definition of wavelength.
What is the horizontal distance between two crests or troughs in a wave? will accept peaks and valley.