WorksheetsComputer Science IGCSE Logic Gates
Total questions: 40
Worksheet time: 20mins
What is the output?
True
False
What is the output?
True
False
What is the output?
True
False
What type of logic gate is this table showing?
AND
OR
NOT
Which logic gate is this?
AND
NOT
OR
How many different combinations of 1 and 0 are possible with 2 bits?
2
4
6
8
What is the Logic Expression for this circuit?
Z = NOT (A AND B)
Z = NOT (A OR B)
Z = (NOT A) AND B
Z = (NOT A) OR B
True or False:
Both inputs need to be 1 for an OR gate to output a 1
True
False
True or False:
AND gates output a 1 if both inputs are 0
True
False
True or False:
NOT gates output the opposite of the input
True
False
Why do we make intermediate columns when constructing truth tables?
Because it gets us more marks
Because it's impossible to get the answer without them
Because it makes working out the solution easier
There is no reason to make them
X = 1 if ((A is 1 AND B is NOT 1)
k
l
l
..
Not gate have:
2 input and 2 output
1 input and 1 output
2 input and 1 output
1 input and 2 output
What will the circuit's output be?
1
0
What will the circuit's output be?
1
0
What type of logic gate is this table showing?
AND
OR
NOT
What type of logic gate is this table showing?
AND
OR
NOT
Which logic gate is this?
AND
OR
NOT
Which logic gate is this?
AND
OR
NOT
Which logic gate is this?
AND
NOT
OR
What will this gate's output be?
0
1
What will this gate's output be?
0
1
What will this gate's output be?
0
1
What will this gate's output be?
0
1
How many different combinations of 1 and 0 are possible with 2 bits?
2
4
6
8
How many different combinations of 1 and 0 are possible with 1 bit?
1
2
3
4
How many different combinations of 1 and 0 are possible with 3 bits?
2
4
6
8
How do we get all the inputs for a truth table with 3 inputs?
Guess all the combinations of 1s and 0s
Count up in binary from 000
Count up in binary from 111
Count up in binary from 1
What is the Logic Expression for this circuit?
Z = NOT (A AND B)
Z = NOT (A OR B)
Z = (NOT A) AND B
Z = (NOT A) OR B
True or False:
Both inputs need to be 1 for an OR gate to output a 1
True
False
True or False:
AND gates output a 1 if both inputs are 0
True
False
True or False:
NOT gates output the opposite of the input
True
False
True or False:
NOT gates can only have one input
True
False
Why do we make intermediate columns when constructing truth tables?
Because it gets us more marks
Because it's impossible to get the answer without them
Because it makes working out the solution easier
There is no reason to make them
Which logic gate is represented by this truth table?
Which logic gate is represented by this truth table?
Which gate is represented by this boolean expression
NAND
NOT
NOR
NXOR
Which gate is represented by this boolean expression
XOR
OR
XEOR
EXNOR
