Speed of Sound (Grade 10 NSC Matric Physical Sciences): Flashcards

Fastest in solids, slower in liquids, slowest in gases

Increases speed (particles vibrate faster)

$344$ m·s$^{-1}$

Particles closest together, energy transfers easily

Reflected sound heard separately from original sound

Sound Navigation And Ranging

Divide time by 2 (sound travels down and back)

$1531$ m·s$^{-1}$

Nature's SONAR used by dolphins/bats to navigate

Increases speed (pushes particles closer)