1) Which of these is something that makes a robot different from a simple machine? a) It uses wheels b) It can be programmed c) It is made of metal d) It has a power button 2) What is an input device in a robot? a) A motor b) A speaker c) A sensor d) A battery 3) Which of the following is an example of a robot in real life? a) A washing machine b) A bicycle c) A self-driving car d) A hammer 4) What do we call the part of a robot that lets it perform tasks like moving or lifting? a) Sensor b) Actuator c) Program d) Controller 5) What is the job of a sensor? a) To control motors to make robots move b) To collect information about the environment c) To make the robot speak d) To store data inside a disk 6) Which sensor detects light levels? a) Light sensor b) Microphone c) Motion sensor d) Temperature sensor 7) Which of these is could not be a type of sensor? a) ph b) motor c) Motion d) Temperature 8) Why do robots need sensors? a) To make them lighter so they can move faster b) To give them power, making their battery last longer c) To help them sense and react to the world d) To make them look realistic 9) Analogue data is best described as: a) Wiggly, continuous, always changing b) Clean, clear, only 1s and 0s c) Written on paper d) Binary code 10) What is digital data made of? a) Letters and numbers b) Images and text c) Waves and curves d) 1s and 0s 11) What is a microcontroller? a) A robot’s power source b) A tiny brain that processes digital data c) A type of sensor d) A machine part that moves 12) Which of these is an actuator? a) Light sensor b) Microcontroller c) Motor d) Binary code 13) Binary is also known as: a) Base 8 b) Base 2 c) Base 10 d) Base 16 14) In binary, what does “1” usually mean? a) Off b) Error c) On d) Start 15) The denary number 9 is written as what in binary? a) 1000 b) 1010 c) 1001 d) 1100 16) Serial transmission sends: a) All bits at once b) Multiple bits on multiple wires c) One bit at a time on one wire d) Only images 17) What is simplex transmission? a) Data travels in both directions at once b) Data doesn’t travel at all c) Data takes turns going back and forth d) Data travels only one way 18) Which of these is an example of full duplex communication? a) A TV broadcast b) Walkie-talkies c) A weather station sensor d) A mobile phone call 19) What is plaintext? a) A normal, readable message b) A binary code c) An encrypted message d) A virus 20) In coding, which of these is a comparison operator? a) + b) > c) AND d) Say "Hello!" 21) Which malware type copies itself and spreads to other files? a) Trojan b) Spyware c) Virus d) Firewall 22) What does spyware do? a) Destroys all files immediately b) Watches user actions secretly c) Stops hackers from entering d) Speeds up your computer 23) Machine learning means: a) The robot follows only fixed instructions b) The robot learns from trial and error c) Humans teach the robot directly every time d) Robots learn to dream 24) Reinforcement learning uses: a) Rewards and penalties b) Viruses and firewalls c) Encryption keys d) Binary only 25) In Scratch, what is a variable used for? a) To spy on data b) To store information c) To encrypt messages d) To draw the maze

Computer Science Bonanza

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