Waves Outside the Visable Spectrum pg.136-137

A (a)   includes all the posibilities between two end points.

A synonym for signal on page 136 is (a)   .

(a)   sends out radio signals.

The (a)   is the part of a device that takes in radio waves.

The (a)   the converts the radio waves into usable messages.

Match the following

• Converts radio waves into usable messages

• Antenna

• Sends out radio signals

• Signal

• Takes in radio waves

• Reciever

• Message

• Transmitter

Order the following based on the steps needed to make a cell phone call according to page 137

• The cell phone encodes your voice

• An antenna picks up your signal and sends it to the network

• The message is decoded and changed back into sounds

• The network sends the signal to an antenna close to the person you are calling

• The antenna sends your call to the persons phone