Communication

The person who accepts or gets the message is the ...

• Sender
• Receiver
• Encode
• Decode

The person who originates the message is the ...

• Receiver 
• Decoder
• Source
• Encoder

Many cars use a keyless entry system, which allows the doors to be locked remotely. To use this system, the driver pushes a button on a small battery-operated device. The button turns on the encoder in the device. A signal is then sent to the car’s electrical system, which activates the locking mechanism.

What is the source in this system?

• The person's hand
• The battery operated device
• The door lock
• The electrical system

To send a message from one person, thing, or place to another is an example of

• decoding.
• receiving.
• transmitting.
• storing.

Which of the following is the best example of a transmitter functioning in a communication system?

• A fax machine prints out an image.
• A satellite dish on the ground receives a video signal.
• A cellular telephone tower sends information to a cellular telephone.

What is a positive effect of rapid communication?

• faster trade in goods
• increased surbanization
• increase in car sales
• new transportation methods

Which was invented LAST?

• telegraph
• radio
• personal computer
• record player

Television remote controls use infrared (light wave) signals to allow a viewer to change channels from a distance.  Which of the following best describes the operation of the remote control?

• decoding and storing
• storing and retrieving
• encoding and transmitting

Many cars use a keyless entry system, which allows the doors to be locked remotely. To use this system, the driver pushes a button on a small battery-operated device. The button turns on the encoder in the device. A signal is then sent to the car’s electrical system, which activates the locking mechanism.
What is the destination in this system?

• The person's hand
• The battery operated device
• The door lock
• The electrical system

What are the parts of the Universal Systems Model?

• Input, Output, Feedback, Processes, and Goals
• Identify the Need, Gather Information, Develop Alternative Solution, 
• In, Out, Up, and Down
• Left, Right, Back