Chapter 2 ❤️❤️

How are electronic sensors used in digitizing the natural world?

•  They measure a physical event and translate it into electrical signals.

•  They measure voltage as a function of time and output a graph.

•  They convert digital events into analog representations.

•  They measure electrical signals sent from a specific computer port

What type of electrical circuit stops working when a single electronic component is damaged or removed?

•  nonlinear

•  parallel

•  linear

•  series

Referhe exhibit. What is used to limit the amount of current that flows through the circuit?

• inductor

•  resistor

•  capacitor

•  LED

What is another term for an electrically controlled mechanical switch?

• microcontroller

•  actuator

•  sensor

•  relay

What software package is commonly used to create programs for the Arduino?

•  Arduino IDE

•  Packet Tracer

•  SparkFun

•  RedBoard

Which tool measures the ratio of voltage to current across an object?

•  multimeter

•  clamp meter

•  oscilloscope

•  wattmeter

Fill in the blank.

Refer to the exhibit. The graphic shows an example of a simple ___

. What is direct current?

•  the type of current that is supplied to the home by power utilities

•  the type of electric current in which the current flow periodically reverses direction

•  the type of current that is produced by batteries, computer power supplies, and solar cells

•  the type of current that is represented by a sine wave

Which three items can serve as inputs to a microcontroller unit such as an Arduino? (Choose three.

•  a sensor

•  an LED

•  a pushbutton

•  a Twitter message

Match the unit of measurement with the associated electronic concept. (Not all options are used.)

•  watt –> power

   ampere –> current

   volt –> voltage

   ohm –> resistance

   Other Incorrect Match Options:

   bandwidth

   latency

• .