Sound travels in waves, but it is n

Sound travels in waves, but it is not part of the electromagnetic spectrum like light waves and radio waves. Sound is produced when matter vibrates. The frequency of these vibrations is measured in units called hertz (Hz). The term frequency refers to the number т of waves produced per second It is variations in frequency that produce different pitches (high and low sounds). The limits of human hearing are 20 000 Hz.

Результаты (английский) 1:

Sound travels in waves, but it is not part of the electromagnetic spectrum, like light waves and radio waves. Sound is mass-produced when matter vibrates. The frequency of these vibrations is measured in units called hertz (Hz). The term frequency refers to the number t of mass-produced waves per second It is variations in frequency that produce different pitches (high and low sounds). The limits of human hearing are 20000 Hz.

Результаты (английский) 2:

Sound travels in waves, but it is not part of the electromagnetic spectrum like light waves and radio waves. Sound is produced when matter vibrates. The frequency of these vibrations is measured in units called hertz (Hz). The term frequency refers to the number m of waves produced per second It is variations in frequency that produce different pitches (high and low sounds). The limits of human hearing are of 20 000 Hz.

Результаты (английский) 3:

sound travels in waves, but it is not part of the electromagnetic spectrum like light waves and radio waves. sound is produced when the matter vibrates. the frequency of these vibrations is measured in units called hertz (hz). the term frequency refers to the number t of waves produced per second it is be in frequency that produce different pitches (high and low sounds). the limits of human hearing are 20000 hz.