1
If a light bulb is connected to a battery, and a switch is connected so that a code can be tapped, should the circuit be parallel or series?
Series
There are many devices that rely on wireless electromagnetic transmission, including cell phones, laptop computers, airplanes, and even some types of televisions. With the large number of devices communicating wirelessly, how are the signals kept from going to the wrong place?
Different devices operate on different wavelengths of the electromagnetic spectrum.
Nisha was studying to be a software engineer. She wanted to work on improving communications for various devices. Which of the following are ways that software can be used in communication technologies? Choose the two that apply.
A. better antennae for better range
B. ability for encryption for security
C. thicker wires for durability
D. interpreting data for clearer transmissions
E. increasing bandwidth for speed of transmissions
B,D
Category: native computer language
Compatibility
When T-Pain sings about "boots with the fur," what kind of boots is he describing?
UGGs
Every time a switch is pressed down, a(n) __________ __________ is sent through the wires. This is used to send information coded with dots and dashes
wave pulse
Judith was converting her collection of records to music she could play on her mp3 player.
While editing the mp3 files, she modified the (continuous rate / coding rate / digital rate / sampling rate) for two reasons.
The digits that make up a binary code are called _________________.
Bits
Category: easily cleaned up
Noise
What popular canvas shoes were orignially worn as basketball shoes?
Converse
Kavi built a circuit with a 180-volt battery and a 1000-ohm resistor. He wants to build another circuit with the same resistor but twice the current. What would the voltage need to be on the new battery?
360 Volts
The first was so that the (digital / binary / analog / electric) signal more closely matched the original (digital / binary / analog / electric) signal. The second was so that the converted song wouldn’t take up too much storage space.
digital; analog
What two numbers make up digital signals?
0s and 1s
Enola and Gabrielle use a ribbon to create a model of the wave. Gabrielle holds the ribbon on one end while Enola moves her hand up and down about 30cm to create a wave. Then, Gabrielle sends a second wave toward Enola by moving her hand up and down about 60cm. Complete the sentence that correctly compares Gabrielle’s wave to Enola’s wave.
Gabrielle’s wave had twice the __________________ and __________
times the energy of Enola’s wave.
Amplitude; four
What year did the original Air Jordans debut?
1985
Electricians typically hook up internal circuits in homes in parallel rather than in series. What are the two benefits of the circuits being in parallel? Choose the two that apply.
A. The wires follow in a line from one to the next, making it easier to replace one.
B. If the light in the kitchen goes out, the television in the living room will stay on.
C. Not all switches in the home have to be set to the “on” position for the toaster to work.
D. If too much current is running to the home, extra resistors can be added to slow it.
B,C
Communication has been a part of human history since the beginning of our time on Earth. There have been countless forms of communication during that time. Describe and provide an example of three forms of communication that humans used before computers were invented.
Answers vary
Definition: amount of information transmitted per time unit
Bandwidth
Elena is using a computer program to make a model of a transverse wave. The program allows her to manipulate different parts of the wave. Elena wants to manipulate her model to make a wave that carries less energy than the wave she started with by changing one variable. Which of the following describes how Elena could change her model to accomplish her goal?
Increase the distance between two crests or two troughs
Which Jordans are the most expensive?
Solid Gold OVO Air Jordans (2.1M)
If a circuit has a fixed resistance, the current increases with the voltage. This is known as a(n) ____________ relationship.
Proportional
Nannette was working on cleaning up the noise from an analog signal and from a digital signal. Which signal would she have a harder time erasing the noise from?
Analog
Category: hidden behind another digital signal
Security
What code was used during the civil war for communication that required a closed circuit?
Morse Code
What is the name of the Adidas shoes designed by Kanye West
Yeezys