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Edexcel GCSE Computer Science
Topic 1: Computational Thinking
1.1 Decomposition and Abstraction
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Decomposition simplifies complex tasks in problem-solving.
True
How does decomposition enhance collaboration in problem-solving?
By dividing tasks
Match the aspect with its description:
Purpose of decomposition ↔️ Breaks down complex problems
Emphasis of abstraction ↔️ Simplifying the task
Approach of abstraction ↔️ Selecting what to include
Result of decomposition ↔️ Subtasks or subproblems
Abstraction involves focusing on relevant details while hiding unnecessary
complexity
Match the aspect with its description:
Purpose of abstraction ↔️ Hides unnecessary complexity
Emphasis of decomposition ↔️ Dividing the task
Approach of decomposition ↔️ Top-down or bottom-up
Result of abstraction ↔️ Simplified view of the system
Decomposition
makes complex problems easier to understand.
True
What are the key benefits of decomposition?
Simplifies tasks, enhances collaboration, improves reusability
Abstraction simplifies a system by focusing on its essential
elements
Match the concept with its purpose:
Abstraction ↔️ Highlights essential details
Decomposition ↔️ Breaks down complex problems
Abstraction is essential for managing complexity and improving
efficiency
How does abstraction support code reusability?
By creating reusable modules
Abstraction simplifies complex systems by focusing on essential functions and properties while hiding intricate
details
What is the primary goal of decomposition in problem-solving?
Breaks down complex tasks
Match the concept with its emphasis:
Decomposition ↔️ Dividing the task
Abstraction ↔️ Simplifying the task
What is the main benefit of decomposition in managing complex problems?
Simplifies complex tasks
Decomposition enhances collaboration by allowing team members to work on different parts
concurrently
.
True
Abstraction simplifies a system by highlighting essential
details
How does decomposition simplify complex tasks?
Reduces into solvable subtasks
Decomposition reduces large problems into manageable
subtasks
.
True
Abstraction simplifies complex systems by focusing on essential functions and properties while hiding intricate
details
Abstraction simplifies complex systems by focusing on essential
details
Abstraction reduces
complexity
by hiding intricate details.
True
What is the primary purpose of decomposition in problem-solving?
Breaks down complex problems
When planning a birthday party, decomposition involves organizing invitations, catering, decoration, and
entertainment
Decomposition improves collaboration and reusability in complex tasks.
True
How does a GUI use abstraction to simplify user interaction?
Hides complex rendering processes
Abstraction focuses on essential details while hiding implementation
specifics
Abstraction facilitates clarity by simplifying
system
functionalities.
True
What is decomposition in computational thinking?
Breaking down complex tasks
Decomposition involves breaking down a complex problem into more manageable
parts
Reusability is a key benefit of decomposition.
True
What is an example of decomposition in real-world planning?
Planning a birthday party
Abstraction creates a simplified view of a system.
True
What is the relationship between decomposition and abstraction?
Decomposition simplifies tasks, abstraction hides complexity
Order the benefits of decomposition:
1️⃣ Simplifies complex tasks
2️⃣ Enhances collaboration
3️⃣ Improves reusability
Abstraction is used to divide tasks into subproblems.
False
How does abstraction simplify problem-solving?
By hiding unnecessary complexity
Why is decomposition crucial in problem-solving?
Breaks down complex tasks
Abstraction simplifies complex systems by hiding intricate details.
True
What is the purpose of abstraction in computer science?
Simplifies complex systems
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