IoT- Ch 2

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

.ino

1). voltage (V) 2). impedance (Z) 3). resistance (R) 4). power (P) 5). current (I)

1). electrical potential difference, "electrical pressure" 2). opposition to changes in voltage or current due to electrical and magnetic interactions 3). opposition to flow of charged particles 4). electrical energy per unit time generated or dissipated 5). flow of charged particles; often electrons

Match the definitions with the appropriate steps of the design phase of a printed circuit board. 1). finding possible vendors and material costs 2). the initial idea 3). symbolic representations of the circuit and components

1). research 2). concept 3). circuit design

Match the unit of measurement with the associated electronic concept. 1). ohm 2). volt 3). watt 4). ampere

1). resistance 2). voltage 3). power 4). current

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

A sensor A pushbutton A Twitter message

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

Arduino IDE​

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 signals.

What type of device is able to create physical movement?

actuator

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 used to limit the amount of current that flows through the circuit?

resistor

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

series

What is direct current?

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