Question 1: Write the truth table for the AND gate with two inputs, A and B. Fill in the outputs for all input combinations.

Answer: A | B | Output ---|---|-------- 0 | 0 | 0 0 | 1 | 0 1 | 0 | 0 1 | 1 | 1

Question 2: Write the truth table for the OR gate with two inputs, A and B. Fill in the outputs for all input combinations.

Answer: A | B | Output ---|---|-------- 0 | 0 | 0 0 | 1 | 1 1 | 0 | 1 1 | 1 | 1

Question 3: Write the truth table for the NOT gate with input A. Fill in the output for both possible inputs.

Answer: A | Output --|-------- 0 | 1 1 | 0

Question 4: Describe a scenario where an AND gate might be used in a real-world device. Use complete sentences.

Answer: An AND gate can be used in a security system where two conditions must be met to unlock a door, such as a keycard being swiped AND a correct PIN being entered.

Question 5: Complete the truth table for a NAND gate with inputs A and B.

Answer: A | B | Output ---|---|-------- 0 | 0 | 1 0 | 1 | 1 1 | 0 | 1 1 | 1 | 0

Question 6: Draw a logic circuit diagram for a circuit that uses an AND gate and an OR gate to produce an output. Label the inputs and the output.

Answer: A correct sketch would show two inputs feeding into an AND gate and the same or another input feeding into an OR gate, with the outputs of both gates feeding into a final OR gate or similar arrangement as specified. Labels should clearly identify each component and connection.

Question 7: Explain the difference between the AND and OR gates in your own words.

Answer: An AND gate outputs true only if both inputs are true. An OR gate outputs true if at least one input is true.

Question 8: Sketch a truth table for a simple circuit that uses a NOT gate to invert the input A. Describe the output for input A being true and false.

Answer: Input A | Output ---------|-------- 0 | 1 1 | 0 A correct sketch would show the input A and the inverted output, with the output being the opposite of the input.

Question 9: Create a Boolean expression for a circuit where the output is true only when input A is true AND input B is false.

Answer: The Boolean expression is: A AND (NOT B)

Question 10: Describe a real-world example where the use of a Boolean AND operation can improve safety or security.

Answer: In a safety system, an alarm might only activate if both the door is open AND a security code is entered, ensuring both conditions are met before triggering an alarm.