Understanding Logic Gates

What is the function of an AND gate?

• The function of an AND gate is to output true regardless of the input values.

• The function of an AND gate is to output true only when all inputs are true.

• The function of an AND gate is to output false only when all inputs are false.

• The function of an AND gate is to output true when at least one input is true.

How does an OR gate operate?

• An OR gate outputs false if at least one input is true.

• An OR gate outputs true if at least one input is true.

• An OR gate has no effect on the output regardless of the inputs.

• An OR gate outputs true only if both inputs are true.

What is the output of a NOT gate when the input is true?

• null

• undefined

• false

• true

Draw the symbol for an AND gate.

• A circle with two inputs and two outputs

• The symbol for an AND gate is a flat-ended shape with two inputs on the left and one output on the right.

• A square with three inputs and no output

• A triangle with one input and one output

Draw the symbol for an OR gate.

• A straight line with two inputs on either end.

• The symbol for an OR gate is a curved shape with two inputs on the left and one output on the right.

• A square shape with one input and two outputs.

• A triangle shape with three inputs and no output.

Draw the symbol for a NOT gate.

• A triangle pointing right with a small circle at the tip.

• A square with a line through it.

• A circle with two lines extending from it.

• A triangle pointing left with no circle.

What is the truth table for an AND gate?

• | A | B | Output | |---|---|--------| | 0 | 0 | 1 | | 0 | 1 | 1 | | 1 | 0 | 1 | | 1 | 1 | 0 |

• | A | B | Output | |---|---|--------| | 0 | 0 | 0 | | 0 | 1 | 0 | | 1 | 0 | 0 | | 1 | 1 | 1 |

• | A | B | Output | |---|---|--------| | 0 | 0 | 0 | | 0 | 1 | 1 | | 1 | 0 | 0 | | 1 | 1 | 1 |

• | A | B | Output | |---|---|--------| | 0 | 0 | 0 | | 0 | 1 | 0 | | 1 | 0 | 1 | | 1 | 1 | 1 |

What is the truth table for an OR gate?

• | A | B | Output | |---|---|--------| | 0 | 0 | 1 | | 0 | 1 | 1 | | 1 | 0 | 0 | | 1 | 1 | 0 |

• | A | B | Output | |---|---|--------| | 0 | 0 | 0 | | 0 | 1 | 0 | | 1 | 0 | 0 | | 1 | 1 | 0 |

• | A | B | Output | |---|---|--------| | 0 | 0 | 1 | | 0 | 1 | 0 | | 1 | 0 | 0 | | 1 | 1 | 0 |

• | A | B | Output | |---|---|--------| | 0 | 0 | 0 | | 0 | 1 | 1 | | 1 | 0 | 1 | | 1 | 1 | 1 |

What is the truth table for a NOT gate?

• Input: 0 -> Output: 0; Input: 1 -> Output: 1

• Input: 0 -> Output: 1; Input: 1 -> Output: 0

• Input: 0 -> Output: 1; Input: 1 -> Output: 1

• Input: 0 -> Output: 0; Input: 1 -> Output: 0

In what applications are logic gates commonly used?

• Mechanical engineering and design

• Logic gates are commonly used in digital circuits, computer processors, and control systems.

• Home appliances and kitchen gadgets

• Biological research and experiments