Documents Let there be light Most of what we know about the Universe comes from information that has been...

Slide 1Let there be light Most of what we know about the Universe comes from information that has been carried to us by light. We will begin by examining the properties of…

Documents Properties of sound Longitudinal waves travel at different speeds depending on the medium (air @ 25....

Slide 1 Properties of sound Longitudinal waves travel at different speeds depending on the medium (air @ 25oC 346m/s, water 1490 m/s) Denser the medium, the faster it travels,…

Documents Properties of sound

Slide 1 Properties of sound Longitudinal waves travel at different speeds depending on the medium (air @ 25oC 346m/s, water 1490 m/s) Denser the medium, the faster it travels,…