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- 1. Multiple Choice
_______ is technology that is the most advanced
Digitized information
Degradation
High-tech devices
Computers
- 2. Multiple Choice
_______ is information stored entirely in numbers
Digitized information
Degradation
High-tech devices
Computers
- 3. Multiple Choice
_______ is to become less in value or wearing down
Digitized information
Degradation
High-tech devices
Computers
- 4. Multiple Choice
_______ is an electronic device for storing and processing data
Digitized information
Degradation
High-tech devices
Computers
- 5. Multiple Choice
A radio transmitter can detect sound waves and convert them into electromagnetic waves that it can ___________________ over long distances.
Cell phones
Decode
Transmit
Digital
- 6. Multiple Choice
A receiver can _________________ the electromagnetic waves and turn them back into sound waves for us to hear.
Cell phones
Decode
Transmit
Digital
- 7. Multiple Choice
Many digital devices, such as ________________________, have changed the way we collect information and communicate with each other
Cell phones
Decode
Transmit
Digital
- 8. Multiple Choice
The telegraph was one of the first electronic ___________________________ devices.
Cell phones
Decode
Transmit
Digital
- 9. Multiple Choice
Cell phones turn a voice into a digital signal that can be transmitted. In order to get the original message, the person receiving this digital signal must have a device with which characteristic?
The same keyboard as the cell phone that sent the message
The ability to decode the digital signal back into sound
A size that makes it easy to fit into a pocket or purse
A battery that can run electronics for more than six hours
- 10. Multiple Choice
The table provides information on a system for coding letters of the alphabet as digital signals using strings of zeros and ones. What is the smallest length of a string of ones and zeros needed to code for all 26 letters of the alphabet?
2
5
13
26
- 11. Multiple Choice
he map shows City 1 and City 2 with their current cell phone towers and the range of the signals from these towers. New towers must be built with ranges that will connect these cities. No cell phone towers can be built in a wildlife preserve. Hills reduce the signal range of cell phone towers. Based on this information, what is the smallest number of cell phone towers that will need to be built to connect the two cities?
2
4
6
8
- 12. Multiple Choice
Which of the following is the best source of information on how building cell phone towers affects the environment?
Getting information from people on how much they use their cell phones every day
Collecting data on the number of endangered species that live in areas with a cell phone tower
Studying the plants and animals in an area before and after a cell phone tower is built there
Checking the health of vegetation in areas that have never been exposed to cell phone signals
- 13. Multiple Choice
This table provides information on four different systems for transferring information digitally over distances. If a system is needed that can send images over a distance of two kilometers and costs less than $12,000, which system would be the best choice?
System A
System B
System C
System D
- 14. Multiple Choice
Why is it important to be able to transmit information over long distances?
Sometimes people need to have access to information fast, even when they are far away.
Sometimes people do not need to have access to information, even when they are far away.
Sometimes people just want to keep their friends happy.
People do not need to transmit information over long distances.
- 15. Multiple Choice
What is an example of when people need to transmit information quickly?
When they are looking at social media.
During the newest update of my favorite video games.
During a natural disaster, people can use their phones to find each other.
When it raining, snowing, windy or sunny out.
- 16. Multiple Choice
Select two examples of how people use digitized information to communicate.
People use cell phones to communicate and to relay information quickly
People use the telegraph since they enjoy the unique way of communication.
People use cell phones to play games and enjoy social media.
People use medical instruments like x-ray machines to gather and communicate information.
People use computers to help them in school.
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