Materials and Properties
Vocabulary
TED Talks
Communication System
Random
100
Name a material that starts with a m, p, w, and c.
Metal, plastic, wood, and ceramic.
100
What is the definition for materials?
The natural or human-made stuff that makes everything.
100
How many TED Talks have you seen in this class?
Two.
100
The cell phone diagram in your notebook includes two cellphones and what other object?
Cell tower.
100
Correctly pronounce the teacher's name of this class.
Miss Weiland (Whyland)
200
What is a property that glass has which most other materials do not?
Transparency or it is transparent.
200
What are all of the vocabulary words from the communication system unit?
Source, encoder, decoder, transmitter, receiver, destination, storage.
200
What material did Kenneth originally chose for his pressure sensor?
Rubber.
200
As part of the communication system, what are two things a remote control does?
Encode and transmit.
200
What two things do you need for this class?
A notebook/folder and a writing utensil.
300
What are the two properties that end in conductivity?
Thermal conductivity and electrical conductivity.
300
What is the definition of encoder?
Takes the signal and converts it to a code.
300
What did Kelvin create that allowed members of his community to communicate with each other?
A FM radio transmitter/station.
300
Not including storage, what is the correct order of a signal following the communication system path?
Starts at the source, encoder, transmitter, receiver, decoder, and destination.
300
What is your grade heavily based on in this class?
Participation.
400
What is ductility and is it a property or a material?
It is a property. It is a solid's ability to be bent or pulled into different shapes.
400
What is ductility?
A solids ability to be bent into other shapes.
400
What were the first names of the two speakers?
Kenneth and Kelvin.
400
What are the 4 types of communication systems we "debated" about last week?
Print, radio, internet, and television.
400
What is one benefit and one drawback to using a radio for communication?
Answers will vary.
500
Which material would be best to protect an egg? a. rubber b. metal c. plastic
a. rubber
500
What is a transmitter?
It takes the code from the encoder and sends it out.
500
How did BOTH videos relate to this class?
The first video talked about an invention and the appropriate materials for that invention based on materials' properties. The second video talked about a young boy who created his own communication system.
500
Explain the path of a phone call from the source to the destination using all vocabulary words. Include the 3 objects that are involved.
A source, or person calls their friend. Their voice is then encoded as a message and picked up by a transmitter. The cell tower then receives the code and transmits it to the other phone. The other phone receives the code and decodes it. The signal is now at its final destination. A cell phone is an example of storage.
500
How is the television used to communicate?
Answers will vary.
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