How does binary search work?

It repeatedly divides portion of data list in half

starts at beginning of list and goes all the way to end of list

Why do we use pseudocode when coding?

It is used in planning an algorithm when sketching out the structure of the program before actually coding

It is used as it is an easier way of coding

It is used after coding to compare with the actual code

It is used as a hexadecimal base system to code in python

What is the point in using a flowchart?

It gives a clear flow on the way the code should work and gives a vague outline

It allows you to make a pseudocode on it

It can be used to help abstraction

How can abstraction be used to aid problem solving?

Abstraction can help problem-solving by simulation by building a model of a problem and figure out what happens under different circumstances

Abstraction can be used to help problem-solving by removing all the modules and making all code sequential

Abstraction can be used to help problem-solving by putting it into code and making the problem a digital one

Abstraction can be used to help problem-solving by breaking the problem into smaller problems and working through them

AQA GCSE Computer Science - 3.1.4 Sorting Algorithms

Authored by Mr Ling-Winston

Computers

8th - 10th Grade

Used 123+ times

AQA GCSE Computer Science - 3.1.4 Sorting Algorithms

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18 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is decomposition?

The breaking down of a problem into smaller, simpler steps or stages

A series of steps that can be followed to complete a task

The removal of unnecessary details

An input/output box

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is abstraction?

The removal of unnecessary details

A type of loop

An algorithm

The breaking down of a problem into smaller, simpler steps or stages

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is an algorithm?

A series of steps that can be followed to complete a task

A type of sort

A type of iteration

A selection

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which one of the following is not basic programming construct?

Loop

Sequence

Iteration

Selection

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many types of Selection statements are there?

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which search algorithm is good for a few items?

Linear search

Binary search

Merge search

Sequence search

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens in stage 2 of the merge sort?

Each pair of sublists is repeatedly merged to produce new sorted sublists

The list is successively divided in half, forming two sublists, until each sublist is of length one

Adjacent numbers are swapped around

The numbers are multiplied together

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AQA GCSE Computer Science - 3.1.4 Sorting Algorithms

What is decomposition?

What is abstraction?

What is an algorithm?

Which one of the following is not basic programming construct?

How many types of Selection statements are there?

Which search algorithm is good for a few items?

What happens in stage 2 of the merge sort?

What is a FOR…EndFOR loop?

Which of the following is a character?

How does binary search work?

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