Edexcel GCSE Computer Science Topic 1 Computational thinking overview quiz quiz

Removing unnecessary detail from a model of the problem

Repeating a block of code a fixed number of times

Breaking a problem into smaller sub-problems

Translating the source code into machine code

Adding more and more detail to a model of the problem

Sorting a list of data into order

Counting the rows of a truth table

Removing or hiding unnecessary detail

They avoid repeating code and are easier to test

They make programs run on any operating system without changes

They automatically convert binary numbers to hexadecimal

They remove the need for any variables in the program

The whole-number quotient of a division

The remainder after a division

The larger of two numbers

A number raised to a power

A condition-controlled (WHILE) loop

A recursive loop

A count-controlled (FOR) loop

An infinite loop

Syntax error

Runtime error

Translation error

Logic error

Syntax error

Logic error

Runtime error

Overflow error

The list must contain numbers only

The list must be sorted

The list must have an even length

The list must be stored in an array

It splits the list in half over and over and then merges the sorted parts back together

It checks the middle item and discards a half

It repeatedly swaps adjacent items that are out of order

It removes the largest item each time round

Bubble sort

Linear search

Binary search

Merge sort

AND

OR

NOT

XOR

3

6

8

9

On every single line of the algorithm without exception

Only when that variable's value changes

Only at the very end of the algorithm

Only when you are inside a loop