Connecting Things Chap. 2 Quiz

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

- a sensor -a twitter message -pushbutton

What file extension is used when saving sketches written with the Arduino IDE?​

.ino

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

Arduino IDE

The graphic shows an example of a simple

CIRCUIT

Refer to the exhibit. What type of component is represented if it appeared on an electronic schematic?

LED

How are electronic sensors used in digitizing the natural world?

They measure a physical event and translate it into electrical signal

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

a resistor

What type of device is able to create physical movement?

actuators

What functions do sensors perform in the digitized world?

detecting events in the physical environment

What is a feature of microcontrollers that makes them well-suited for use in the Internet of things?

low power requirements

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

multimeter

Which tool has the ability to measure the signals that travel from sensors to microcontrollers as a function of time?

oscilloscope

What type of circuit provides multiple paths for current flow so that the failure of a single component will not affect the operation of the entire circuit?

parallel

What type of component has no effect on gain or control over voltage or current?

passive

What is another term for an electrically controlled mechanical switch?

relay

What is direct current?

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

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

SERIES