Physical Science: How Telecommuntion Works

How Telecommuntion Works
Vendor:  Scholastic
#2

In this unit the students will explore these concepts: sound is a form of energy that travels through matter in waves; sound information can be changed into other forms to be stored or sent over long distances; and information can be sent over long distances using electromagnetic waves.  Vocabulary terms include: amplifier, analog, binary, carrier wave, decibel, digital, frequency, hertz, kilohertz, megahertz, and wavelength

Last modified: Tuesday, 31 January 2012, 12:11 PM