Coding & Algebra

Multiple Choice

What does the binary code '01000001' represent in computer memory?

• The number 65

• The letter A

• A switch in the off position

• A programming language

Multiple Choice

Which binary code represents the letter 'G' in the binary alphabet?

• 01000110

• 01000111

• 01000100

• 01000010

Multiple Choice

What animal is represented by the binary code 01000110 01001111 01011000?

• Dog

• Cat

• Fox

• Cow

Multiple Select

Which of the following statements are true about pixels and binary representation?

• Each pixel's position and color can be represented in binary.

• A computer screen is made up of pixels, which are small squares.

• A computer does not need to know the position of each pixel to show a picture.

• The color of a pixel cannot be represented in binary.

Fill in the Blanks

A typical computer monitor is made of

pixels.

Multiple Choice

In the pixel art code, what does the number 1 represent?

• A light pixel

• A dark pixel

• A red pixel

• A blue pixel

Multiple Choice

What is a statement in a programming language?

• An instruction given to a computer

• A variable used in a program

• A function that returns a value

• A loop that repeats actions

Multiple Select

Which of the following are true about conditional statements?

• They execute actions based on whether a condition is true or false

• They are always represented as loops

• They can be written as if-then or if-then-else statements

• They are only used for mathematical operations

Fill in the Blanks

Fill in the blanks to show the result of the conditional statement: If two numbers are equal, the computer will display a ___ light; else it will display a ___ light.

Multiple Choice

Which programming language is shown in the code example on the second slide?

• JavaScript

• Python

• C

• Java

Multiple Choice

Why do computer programmers prefer using programming languages like C, Python, or JavaScript instead of writing in binary?

• Programming languages are easier and faster to use than binary

• Binary is more efficient than programming languages

• Programming languages are only used for games

• Binary is required for all programming tasks

Multiple Select

Which of the following are characteristics of efficient code?

• Uses the lowest number of instructions

• Uses the smallest amount of space to store data

• Always runs slower

• May improve program speed

Fill in the Blanks

Fill in the blank: The process of making code shorter and faster is called

code.

Fill in the Blanks

Fill in the blank: In the pixel art coding example, the number that represents all squares in a line being colored is

.

Multiple Choice

Which of the following best describes the purpose of using numbers like '1 3 1' and '0 5' to represent pixel art?

• To count the total number of pixels in the art

• To efficiently encode the pattern of colored and uncolored pixels in each line

• To identify the color used in each pixel

• To determine the size of the grid

Multiple Select

Based on the code and grid in images 2 and 3, which steps are necessary to reach and color the second square? Select all that apply.

• Move one square right

• Move one square down

• Colour in the square

• Move one square left

Fill in the Blanks

Fill in the blank: Computer memory consists of switches that can be in the

(= 1) or off (= 0) position.