Sound

• Frequency is the waves per second
• Wavelength is the distance between two peaks or troughs
• Pitch is the frequency of a sound wave, measured in Hertz (Hz)
• heartz is the measurement for sound
• Sound travels through solids, liquids and gases at different speeds.
• The speed of sound depends on the density of the medium it passes through.
• In solids, sound can travel very quickly because there are no gaps between particles to slow down the vibrations.
• In liquids, sound travels more slowly than in solids but faster than in gases.
• Amplitude is the maximum displacement of a wave from its undisturbed position.
• the larger the sound the larger the amplitude and the faster the frequency
• Pitch is how high or low a note sounds.
• ultrasound would be defined as 30,000Hz or higher
• infrasound would be defined as below 20Hz
• Pitch is dependant on the frequency of the wave
• All waves show a Doppler effect
• Sound is a longitudinal wave
• light is transverse wave
• Echolocation is the name of the method where echoes(sound reflection) bounces of objects to locate
• Amplitude is the maximum displacement of a wave measured from the midpoint
• All waves can be reflected
• The volume depends on the amplitude of the wave and the distance between the wave and the observer.
• Speed = frequency x wavelength