DT Theory - electronics

DT Theory - Electronic systems

How electronic systems provide functionality to products and processes, including sensors and control devices to respond to a variety of inputs, and devices to produce a range of outputs

​Input
ProcessOutput

Multiple Choice

A device or component that gives information to a computer.

• Input

• Output

• Algorithm

Multiple Select

A sensor is:

• Something that detects a change

• Something creates a change

• Something that humans have

• Something that monitors an input

Multiple Choice

Which sensor detects changes in UV?

• Light Sensor

• Proximity Sensor

• Motion Sensor

• Pressure Sensor

Multiple Choice

Which sensor measures weight?

• Light Sensor

• Pressure Sensor

• Motion Sensor

• Proximity Sensor

Multiple Choice

What component is this the symbol for?

• LDR
• Thermistor
• LED
• Buzzer

Multiple Choice

As the light level on an LDR decreases, it's resistance _________?

• increases
• decreases

Multiple Select

what are the three main parts of an electronic system?

• input

• process

• output

• start

• stop

Multiple Choice

What component is this the symbol for?

• Thermistor
• LDR
• Fixed resistor
• Transistor

Multiple Select

How could you find out the resistance of a fixed resistor?

• look at the coloured bands

• weigh it

• use a multimeter to measure it

• measure it's length with a ruler

Multiple Choice

A thermistor changes it's resistance in response to ___________?

• light
• temperature
• sound
• pressure

Multiple Choice

LDR stands for Light Dependent _______?

• Resistor
• Resistance
• Resonator
• Respirator

Multiple Choice

What is a single-throw switch?

• A temperature-dependent resistor

• A light-dependent resistor

• A button that switches between on and off

• An electrical quantity that reduces the electric current flow through it

Multiple Choice

What is a push to make switch?

• A temperature-dependent resistor

• A light-dependent resistor

• A button that makes the circuit (turns on) when pushed

• An electrical quantity that reduces the electric current flow through it

Multiple Choice

Transistors act like tiny "____________."

• Electron sources

• Switches

• Batteries

• Bees?

Multiple Choice

As well as acting like a switch, another function of the transistor is to____________signals?

• rectify

• amplify

• limit

• control

Multiple Choice

Buzzer symbol

Multiple Choice

Thermistor symbol

Multiple Choice

LED symbol

Multiple Choice

Resistor symbol