Loudspeakers work by converting electrical energy into kinetic energy. This vibrates the cone which creates the sound waves. Sound waves can reflect off surfaces. We hear reflected sound as an echo.

The TRANSMISSION of acoustic energy through a medium via a SOUND WAVE. See: SOUND, SPEED OF SOUND. Compare: ACOUSTIC RADIATION. The levels of outdoor NOISE, whether they are intrusive or the normal ...

Research reveals how specific sound frequencies can affect you, with promising applications for pain management, stress ...

A mantis shrimp's punch creates high-energy waves. Its exoskeleton is designed to absorb that energy, preventing cracking and tissue damage.

Scientists have been unable to confirm the existence of time reflection due to the amount of energy required to create a ...

In response, scientists are working to develop devices that take advantage of wave-like forms of energy such as sound, light, and spin, as they could potentially lead to the creation of more ...

5. Encourage students to think about other kinds of energy that travel in the form of waves (e.g. sound, light). Explain to students when a train whistle screams, the sound they hear has moved ...