BBC1 年
Sound and ultrasound - Edexcel
where a glass may shatter if the singer makes a high-pitched sound near to the glass. Ultrasound imaging creates a picture of something that cannot be seen directly, such as an unborn baby in the ...
BBC4 年
Sound waves - AQA Ultrasound
where a glass may shatter if the singer makes a high-pitched sound near to the glass. Ultrasound imaging creates a picture of something that cannot be seen directly, such as an unborn baby in the ...