Truth tables

QuizÂ by GCSE Computer Science Teacher 3

GCSE (AQA)
Computer Science
English National Curriculum

Feel free to use or edit a copy

includes Teacher and Student dashboards

### Measures 1 skill fromGCSE (AQA)Computer ScienceEnglish National Curriculum

3.4.2.a

Track each student's skills and progress in your Mastery dashboards

• edit the questions
• save a copy for later
• start a class game
• view complete results in the Gradebook and Mastery Dashboards
• automatically assign follow-up activities based on studentsâ€™ scores
• assign as homework
• share a link with colleagues
• print as a bubble sheet

### Our brand new solo games combine with your quiz, on the same screen

Correct quiz answers unlock more play!

14 questions
• Q1
What is a truth table?
They determine the output of one input
They list all the possible inputs and outputs of a logic gate
They work out if a statement is true or not
They list only the inputs of a logic gate
60s
3.4.2.a
Edit
Delete
• Q2
The truth table above is for which gate?
a AND B
NOT a
a OR b
a XOR b
45s
3.4.2.a
Edit
Delete
• Q3
The above truth table is for which gate?
a AND b
NOT a
a OR b
a XOR b
45s
3.4.2.a
Edit
Delete
• Q4
The above truth table is for which gate?
NOT a
a AND b
a OR b
a XOR b
45s
3.4.2.a
Edit
Delete
• Q5
The above truth table is for which gate?
(NOT a) AND b
NOT a XOR b
NOT a AND b
NOT a OR b
60s
3.4.2.a
Edit
Delete
• Q6
The above truth table is for which gate?
(NOT a) AND b
NOT a AND b
(NOT a) NOT b
(NOT a) OR b
60s
3.4.2.a
Edit
Delete
• Q7
If a truth table with two inputs will have 4 rows, how many must a truth table with three input have?
8
7
6
12
60s
3.4.2.a
Edit
Delete
• Q8
Which formula correctly represents the maximum number of rows in relation to the number of inputs?
max_rows = inputs^2
max_rows = inputs + 2
max_rows = inputs * 2
max_rows = max_rows - inputs
60s
3.4.2.a
Edit
Delete
• Q9
In what order would these inputs be displayed in a truth table?
Z, C, B, A
A, C, Z, B
A, B, C, Z
A, B, Z, C
60s
3.4.2.a
Edit
Delete
• Q10
What is the missing value?
0
1
60s
3.4.2.a
Edit
Delete
• Q11
Why is C is not considered when deciding how many inputs there are, and therefore how many rows are needed in the truth table?
Because C is only an input
Because C is also an output
Because it is easier to not include C
Because you can only include pairs of inputs
60s
3.4.2.a
Edit
Delete
• Q12
How many of these are both inputs AND outputs?
1
6
4
2
60s
3.4.2.a
Edit
Delete
• Q13
How many of these are only inputs?
6
4
2
1
60s
3.4.2.a
Edit
Delete
• Q14
What is one disadvantage of truth tables for combined logic gates?
It time taken to draw one does not outweigh the outcome of the process
If you make a mistake earlier in the table it will make the rest of the results in that row invalid
It is not an efficient way of testing for possible outcomes
It is easier to not use a truth table
60s
3.4.2.a
Edit
Delete

Teachers give this quiz to your class