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

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 all possible combinations of A and B and the output.

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. Show the input and output for both possible values of A.

Answer: A | Output 0 | 1 1 | 0

Question 4: Complete the truth table for an XOR gate with inputs A and B. The XOR gate outputs true only when exactly one of the inputs is true.

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

Question 5: Draw a logic circuit for a simple AND gate. Label the inputs and output clearly. Leave space for your sketch.

Answer: A correct sketch would include a standard AND gate shape with two inputs labeled A and B, and an output line labeled 'Output'.

Question 6: Sketch a logic circuit that uses a NOT gate and an AND gate to produce an output that is true only when A is false and B is true.

Answer: A correct sketch would show A going into a NOT gate, B going directly into an AND gate, and the outputs of these gates feeding into the AND gate, with the final output labeled.

Question 7: Suppose A is true (1) and B is false (0). What is the result of A AND B? Write your answer as 0 or 1.

Answer: 0

Question 8: Suppose A is false (0) and B is true (1). What is the result of A OR B? Write your answer as 0 or 1.

Answer: 1

Question 9: Explain in your own words what the NOT gate does to its input.

Answer: The NOT gate inverts its input; if the input is 0, the output is 1, and if the input is 1, the output is 0.

Question 10: Describe a real-world example where a logic gate might be used in a household device.

Answer: A logic gate could be used in a security system where the alarm sounds only if a door is open (input A) and the correct code is entered (input B).