Year 7 Computer Science: Logic Gates Worksheet
Computer Science
Year 7
10 questions
~20 mins
0 views0 downloads
About This Worksheet
This worksheet helps you understand the basic logic gates used in computers. Complete the tasks to improve your understanding of how these gates work.
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Year 7 Computer Science: Logic Gates Worksheet
Subject: Computer ScienceGrade: Year 7
Name:
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Untitled Worksheet
Grade Year 7
A
Questions
This worksheet helps you understand the basic logic gates used in computers. Complete the tasks to improve your understanding of how these gates work.
Answer all questions in the spaces provided.
1.
Complete the truth table for an AND gate with two inputs, A and B. Fill in the output column based on the inputs.
[3 marks]| A | B | Output |
|---|---|---|
| 0 | 0 | |
| 0 | 1 | |
| 1 | 0 | |
| 1 | 1 |
2.
Complete the truth table for an OR gate with two inputs, A and B. Fill in the output column based on the inputs.
[3 marks]| A | B | Output |
|---|---|---|
| 0 | 0 | |
| 0 | 1 | |
| 1 | 0 | |
| 1 | 1 |
3.
Complete the truth table for a NOT gate with input A. Fill in the output column.
[2 marks]| A | Output |
|---|---|
| 0 | |
| 1 |
4.
Describe what a NAND gate does in terms of its output based on its two inputs.
[3 marks]5.
Describe what an XOR gate does in terms of its output based on its two inputs.
[3 marks]6.
Draw a logic circuit using AND, OR, and NOT gates that could represent a simple security alarm system where the alarm sounds only if the door is open AND the alarm switch is turned on.
[8 marks]Drawing / Sketch space
7.
Sketch a logic circuit that uses NOT and OR gates to make a device turn on if either a switch is off or a sensor detects movement.
[8 marks]Drawing / Sketch space
8.
Complete the truth table for an XNOR gate with two inputs, A and B. Fill in the output column.
[3 marks]| A | B | Output |
|---|---|---|
| 0 | 0 | |
| 0 | 1 | |
| 1 | 0 | |
| 1 | 1 |
9.
Describe how a NOT gate can be used to invert a signal in a digital circuit.
[3 marks]10.
Draw the symbol of an OR gate and label its inputs and output.
[4 marks]Drawing / Sketch space
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Details
- Created
- 1/2/2026
- Updated
- 1/2/2026
- Type
- worksheet