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Worksheets

Logic Gates

Total questions: 20

Worksheet time: 8mins

Name
Class
Date
1.

What will the circuit's output be?

a)

1

b)

0

2.

What type of logic gate is this table showing?

a)

AND

b)

OR

c)

NOT

3.

What type of logic gate is this table showing?

a)

AND

b)

OR

c)

NOT

4.

Which logic gate is this?

a)

AND

b)

OR

c)

NOT

5.

Which logic gate is this?

a)

AND

b)

OR

c)

NOT

6.

Which logic gate is this?

a)

AND

b)

NOT

c)

OR

7.

What will this gate's output be?

a)

0

b)

1

8.

What will this gate's output be?

a)

0

b)

1

9.

What will this gate's output be?

a)

0

b)

1

10.

What will this gate's output be?

a)

0

b)

1

11.

How many different combinations of 1 and 0 are possible with 2 bits?

a)

2

b)

4

c)

6

d)

8

12.

How many different combinations of 1 and 0 are possible with 1 bit?

a)

1

b)

2

c)

3

d)

4

13.

How many different combinations of 1 and 0 are possible with 3 bits?

a)

2

b)

4

c)

6

d)

8

14.

How do we get all the inputs for a truth table with 3 inputs?

a)

Guess all the combinations of 1s and 0s

b)

Count up in binary from 000

c)

Count up in binary from 111

d)

Count up in binary from 1

15.

What is the Logic Expression for this circuit?

a)

Z = NOT (A AND B)

b)

Z = NOT (A OR B)

c)

Z = (NOT A) AND B

d)

Z = (NOT A) OR B

16.

True or False:

Both inputs need to be 1 for an OR gate to output a 1

a)

True

b)

False

17.

True or False:

AND gates output a 1 if both inputs are 0

a)

True

b)

False

18.

True or False:

NOT gates output the opposite of the input

a)

True

b)

False

19.

True or False:

NOT gates can only have one input

a)

True

b)

False

20.

Why do we make intermediate columns when constructing truth tables?

a)

Because it gets us more marks

b)

Because it's impossible to get the answer without them

c)

Because it makes working out the solution easier

d)

There is no reason to make them