Programming Concepts on Scratch

Select the answer below which best describes an operator in maths and computing.

• A symbol or function symbolising a mathematical process.

• A person who controls equipment.

• A person who runs a company.

• A person who acts in a shrewd manner.

Which answer bests describes the function of the "<" symbol.

• Greater than

• Greater than or equal to

• Less than

• Less than or equal to

The _____ co-ordinates are located vertically on a graph.

• X

• Y

Which value is the X coordinate in (3, 5)?

• 3

• 5

Which of the following best describes a 'sequence'?

• A random list

• A list of instructions

• Actions which follow each other in no particular order

• A list of actions which follow a particular order

How many variables are present in the image above?

• 1

• 2

• 3

• 4

AND, OR, NOT are all examples of what in programming

• Boolean expressions

• Connectives

Which of the statements below best describes a 'variable' in Computing.

• Something which is liable to change.

• A variable is used to store a piece of data that can change in a computer program.

• A piece of code which is assigned a value that never changes.

• Part of a program which allows a user to input something.

Describe what the piece of code above does.

• Makes the Sprite appear anywhere on the screen

• Make the sprite appear randomly between 1 and 100 on the X axis and 50 on the Y axis.

• Make the sprite appear at (1,50)

• Pick a random number between 1 and 100 and display it on the screen.

A series of step by step instructions which solve a problem is.....

• an operator.

• a Boolean expression.

• a variable.

• an algorithm.