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Logic & Circuits quiz games for KS3 Computing

9 live games for KS3 Computing, 135 questions. Free for teachers, up to 40 players.

Logic & Circuits for KS3 Computing: 9 ready-made live quiz games, 135 questions in all.

The questions cover Logic circuits, Gate truth tables, NAND, NOR and XOR, Gate Behaviour, Simple Circuits and Boolean Values.

There are 4 picture rounds, 3 practice sets and 2 quickfire rounds. Question types: 82 true or false, 40 multiple choice, 11 fill the gap and 2 matching. 64 questions have a picture.

Pick a set, put the join code on the board and pupils play on their phones. Pupils need no account. Free for teachers, up to 40 players.

The gamesEach set is a fixed list of questions. Open a preview to see a few of them.

Quickfire: Logic & Circuits

KS315 questions· Warm-up

Plays in 17 of 17 game modes, including Gold Rush, Big Catch and Speed Blitz.

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Preview 3 sample questions
  1. 1

    Which gate has only ONE input?

    XORORANDNOT
  2. 2

    True or false?

    Computers store the value True as a 1.
  3. 3

    True or false?

    A bit can only be 0 or 1.

+ 12 more questions in the game.

Practice

Logic & Circuits: Simple Circuits

KS315 questions· Core

Plays in 17 of 17 game modes, including Gold Rush, Big Catch and Speed Blitz.

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Preview 3 sample questions
  1. 1

    Building truth tables: true or false?

    A circuit with 2 inputs has a truth table with 6 rows.
  2. 2

    Circuits: true or false?

    An intermediate value can never affect the final output of a circuit.
  3. 3

    Circuits: true or false?

    You can work out any circuit by taking it one gate at a time.

+ 12 more questions in the game.

Practice

Logic & Circuits: AND, OR, NOT

KS315 questions· Core

Plays in 17 of 17 game modes, including Gold Rush, Big Catch and Speed Blitz.

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Preview 3 sample questions
  1. 1

    True or false?

    A NAND gate always gives the opposite output to an AND gate.
  2. 2

    An AND gate has A = 1 and B = 1. What is the output?

    2It cannot be worked out10
  3. 3

    An OR gate has A = 0 and B = 0. What is the output?

    -101It cannot be worked out

+ 12 more questions in the game.

Practice

Logic & Circuits: NAND, NOR and XOR

KS315 questions· Core

Plays in 17 of 17 game modes, including Gold Rush, Big Catch and Speed Blitz.

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Preview 3 sample questions
  1. 1

    Which gate has only ONE input?

    ORNOTXORAND
  2. 2

    True or false?

    Computers store the value True as a 1.
  3. 3

    True or false?

    A bit can only be 0 or 1.

+ 12 more questions in the game.

Quickfire: Logic gates

KS315 questions· Warm-up· 5 pictures

Plays in 13 of 17 game modes, including Gold Rush, Big Catch and Fossil Hunt.

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Preview 3 sample questions
  1. 1

    True or false?

    NOT 1 = 0
  2. 2

    True or false?

    1 AND 1 = 1
  3. 3

    True or false?

    0 OR 0 = 0

+ 12 more questions in the game.

Picture round: Gate truth tables

KS315 questions· Core· 14 pictures

Plays in 13 of 17 game modes, including Gold Rush, Big Catch and Fossil Hunt.

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Preview 3 sample questions
  1. 1
    A truth table with input columns and an output column Q

    Picture: Forge Class Software Ltd

    Which gate has this truth table?

    ANDORXORNOT
  2. 2
    A logic gate symbol, inputs on the left lettered, output Q on the right

    Picture: Forge Class Software Ltd

    True or false?

    For this NOT gate, if A = 0, then Q = 1.
  3. 3
    A logic gate symbol, inputs on the left lettered, output Q on the right

    Picture: Forge Class Software Ltd

    True or false?

    For this gate, if A = 1, then Q = 1.

+ 12 more questions in the game.

Picture round: Logic circuits

KS315 questions· Core· all pictures

Plays in 13 of 17 game modes, including Gold Rush, Big Catch and Fossil Hunt.

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Preview 3 sample questions
  1. 1
    A logic circuit diagram with inputs A and B and output Q

    Picture: Forge Class Software Ltd

    Which expression matches this circuit?

    Q = A AND BQ = (NOT A) AND BQ = (NOT A) OR BQ = (NOT A) AND (NOT B)
  2. 2
    A logic circuit diagram with inputs A and B and output Q

    Picture: Forge Class Software Ltd

    Which expression matches this circuit?

    Q = A OR BQ = NOT ((NOT A) OR B)Q = NOT (A OR (NOT B))Q = NOT (A OR B)
  3. 3
    A logic circuit diagram with inputs A and B and output Q

    Picture: Forge Class Software Ltd

    Which expression matches this circuit?

    Q = NOT (A AND (NOT B))Q = NOT (A AND B)Q = NOT (A OR B)Q = NOT ((NOT A) AND B)

+ 12 more questions in the game.

Picture round: Logic circuits, set 2

KS315 questions· Core· all pictures

Plays in 13 of 17 game modes, including Gold Rush, Big Catch and Fossil Hunt.

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Preview 3 sample questions
  1. 1
    A logic circuit diagram with inputs A and B and output Q

    Picture: Forge Class Software Ltd

    Which inputs make Q = 1 in this circuit?

    A = 1, B = 0A = 0, B = 0A = 1, B = 1A = 0, B = 1
  2. 2
    A logic circuit diagram with inputs A, B and C and output Q

    Picture: Forge Class Software Ltd

    Which inputs make Q = 0 in this circuit?

    A = 0, B = 0, C = 0A = 0, B = 1, C = 0A = 0, B = 0, C = 1A = 1, B = 0, C = 0
  3. 3
    A logic circuit diagram with inputs A, B and C and output Q

    Picture: Forge Class Software Ltd

    Which inputs make Q = 0 in this circuit?

    A = 1, B = 0, C = 1A = 0, B = 1, C = 1A = 0, B = 0, C = 1A = 1, B = 1, C = 1

+ 12 more questions in the game.

Picture round: Logic circuits, set 3

KS315 questions· Core· all pictures

Plays in 13 of 17 game modes, including Gold Rush, Big Catch and Fossil Hunt.

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Preview 3 sample questions
  1. 1
    A logic circuit diagram with inputs A and B and output Q

    Picture: Forge Class Software Ltd

    True or false?

    In this circuit, if A = 1 and B = 0, then Q = 0.
  2. 2
    A logic circuit diagram with inputs A and B and output Q

    Picture: Forge Class Software Ltd

    True or false?

    In this circuit, if A = 0 and B = 1, then Q = 1.
  3. 3
    A logic circuit diagram with inputs A and B and output Q

    Picture: Forge Class Software Ltd

    True or false?

    In this circuit, if A = 0 and B = 0, then Q = 1.

+ 12 more questions in the game.

How hosting works

  1. Pick a set and a game mode. The questions stay the same; the game changes.
  2. Put the join code on the board. Pupils join at subjecthub.co.uk/play on a phone or laptop. They need no account.
  3. Play for 1 to 7 minutes. You choose the length before you start.

Free for teachers: host these sets with up to 40 players. You sign up once as a teacher.

See how each game mode plays →

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