Tech/Eng

Which of the following are the fundamental components of a communication system?

• control and propulsion
• transmitter and reciever
• foundation and decking
• production and marketing

Tags

NGSS.MS-PS4-3

The diagram shows an example of a communication system for a United States Geological Survey (USGS) data collection site that collects information about water in a lake. What is the source of the message in this communication system?

• the satellite
• the satellite dish
• the USGS data collection site
• the water data available on the internet

Which of the following is performed by the quality control division of a company that is manufacturing a chair?

• A. applying the varnish
• B. assembling the parts
• C. cutting the material
• D. inspecting the finish

Scientists working for a company are testing a new medicine that they think will help heal damaged tissue. In which part of the company are the scientists working?

• A. distribution
• B. mass marketing
• C. public relations
• D. research

An anemometer measures wind speed. The diagram below show and anemometer that a student built. Which of the following statements best explains why the student used a metal pin to hold the straws in place?

• The pin is thin and strong
• The pin can be magnetized
• The pin is flexible and shiny
• The pin can conduct heat energy

The labeled parts of the sailboat have specific functions. The sail provides the force needed to move the boat. The mast holds up the sail. The rudder steers the boat. Identify it as a structural, propulsion, or control subsystem.

• 
• 
• 
• 

Which of the following identifies the primary function on a radio station tower in a communication system?

• decoder
• encoder
• receiver
• transmitter

Which of the following best describes the function of an ENCODER in a telephone communication system?

• converting sound to electrical impulses
• receiving transmitted electrical signals
• changing electrical impulses into sound
• sending electrical signals through a circuit

A movie studio will use two methods of communication, television and the internet, to advertise a new movie. Which of the following must both methods of communication us in order to show the advertisements to viewers around the world?

• systems to locate viewers
• networks to transmit signals
• printing to create the images
• software to search for images

Tags

NGSS.MS-PS4-3

The picture below represents boxes piled in a closet. The same boxes were then arranged neatly on shelves in the closet. The shelves were built to help store the boxes so the contents of the boxes can be found more easily. Which of the following problems was solved by building shelves?

• organizing the use of space
• limiting the shape of the boxes
• increasing the size of the closet
• equalizing the weight of the boxes

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2