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04 - Controlling physical information

 1. Computers can only interact with the world if they are connected to input and output devices.
earlyyears_roboticsintro_physicalcontrol.jpg

  FALSE

  TRUE

 2. These devices allow them to respond to the world around them and to act according to their own mind and will (e.g they have free will)

  TRUE

  FALSE

 3. What is the sequence of instructions, written to control an object or thing, known as?

  word

  program

  sentence

  processor

 4. Which of the following is untrue of computer control?

  Control systems are not perfect, but can work efficiently

  Control systems can run 24 hours a day, 365 days a year

  Computers can make instant decisions when something unusual happens

  Computers can respond very rapidly to change

 5. Which of the following is NOT an exmaple of computer control?

  Automated Traffic lights

  Central Heating System

  Digital Camera

  A Human eye

 6. In a water heater, ________ are used to react to a drop in temperature and tell an output device, like a heating element, to heat up the water.

  sun lights

  sensors

  meters

  finders

 7. You might have sensors in your home to control the lights. When light sensors detect that it is dark outside a computer can instruct the lights in your driveway to _______.

  switch on

  switch off

  sense some more

  look the other way

 8. An ADC (analogue to digital convertor) converts analogue data from the sensors into ________.

  chinese

  english

  human form

  digital data

 9. What is used to convert signals between the sensors and processor?

  control unit

  botnet

  interface box

  actuator

 10. A magnetic sensor is often used to detect a car approaching a traffic light.

  FALSE

  TRUE


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