Block-Based Coding for Eighth Graders: Interactive Quizzes and Learning

Question 1

Which block is used to repeat a set of commands multiple times in block-based coding?

Accepted Answer

Repeat

Answer

Move

Answer

If-Else

Answer

Wait

Question 2

What is the primary purpose of the 'If-Else' block?

Accepted Answer

To execute code based on whether a specified condition is true or false

Answer

To repeat a set of commands

Answer

To store data

Answer

To pause execution for a specific amount of time

Question 3

Which variable type in block-based coding is designed to store numbers without decimal points?

Accepted Answer

Integer

Answer

Float

Answer

String

Answer

Boolean

Question 4

What is the key difference between 'Local Variables' and 'Global Variables' in block-based coding?

Accepted Answer

Local variables are accessible only within their defining block, while global variables can be accessed throughout the entire program.

Answer

Local variables are temporary, while global variables are permanent.

Answer

Local variables can store any type of data, while global variables can only store strings.

Answer

There is no difference between local and global variables.

Question 5

How do you define a function in block-based coding?

Accepted Answer

Use the 'Create Function' block

Answer

Enclose the code within curly braces

Answer

Functions cannot be defined in block-based coding

Answer

Define a variable with the function name

Question 6

What is the distinction between a 'Sprite' and a 'Backdrop' in block-based coding?

Accepted Answer

Sprites are movable objects, while backdrops are static backgrounds.

Answer

Backdrops are movable objects, while sprites are static backgrounds.

Answer

Sprites and backdrops are the same thing.

Answer

There is no distinction between sprites and backdrops in block-based coding

Question 7

Which block would you use to create a loop that repeats a set of commands 5 times?

Accepted Answer

Repeat block

Answer

While block

Answer

Do-while block

Answer

For block

Question 8

What is the purpose of the 'start on' block in block-based coding?

Accepted Answer

To specify when a program should start running

Answer

To create a loop

Answer

To check if a condition is true

Answer

To store data

Question 9

What is the difference between a function and a procedure in block-based coding?

Accepted Answer

A function returns a value, while a procedure does not.

Answer

A procedure returns a value, while a function does not.

Answer

Functions and procedures are the same thing.

Answer

There is no difference between functions and procedures in block-based coding.

Question 10

What is the purpose of using a sprite in block-based coding?

Accepted Answer

To represent an object on the screen

Answer

To store data

Answer

To create a loop

Answer

To check if a condition is true

Question 11

Which of the following is NOT considered a basic coding concept?

Accepted Answer

Functions

Answer

Variables

Answer

Loops

Answer

Conditionals

Question 12

What is the primary function of a variable in coding?

Accepted Answer

Storing data

Answer

Performing calculations

Answer

Controlling the flow of a program

Answer

Displaying information on the screen

Question 13

Which code block correctly sets up a 'for' loop that starts at 1, ends at 10, and increments by 1 each time?

Accepted Answer

for (counter = 1; counter <= 10; counter++)

Answer

for counter = 1 to 10

Answer

for (counter in range(1, 11))

Answer

counter = 1; while (counter <= 10) { counter++ }

Question 14

What is the purpose of an 'if' statement?

Accepted Answer

To run specific code only when a particular condition is true.

Answer

To store a value in a variable.

Answer

To end a program early.

Answer

To create a loop.

Question 15

Which of the following is NOT a comparison operator?

Accepted Answer

is

Answer

==

Answer

!=

Answer

>

Question 16

What is the primary purpose of a function?

Accepted Answer

To organize code into reusable blocks that perform specific tasks.

Answer

To store data for later use.

Answer

To create loops that repeat actions.

Answer

To handle events that occur in a program.

Question 17

What is the main goal of debugging?

Accepted Answer

To find and fix errors in code.

Answer

To improve the performance of code.

Answer

To document the purpose of code.

Answer

To test the functionality of code.

Question 18

In block-based coding, what type of element represents a storage location for data with a name?

Accepted Answer

Variable

Answer

Loop

Answer

Conditional

Answer

Event

Question 19

What is the main purpose of a 'while' loop in block-based coding?

Accepted Answer

To repeat a series of actions as long as a condition remains true

Answer

To make a decision based on a condition

Answer

To store a value in a variable

Answer

To call a function

Question 20

Which of the following best describes a conditional statement in block-based coding?

Accepted Answer

A statement that executes different actions based on whether a condition is true or false

Answer

A statement that loops through a set of actions until a condition is met

Answer

A statement that assigns a value to a variable

Answer

A statement that creates a new sprite

Question 21

What is the function of a 'broadcast' block in block-based coding?

Accepted Answer

To send a message to all other sprites in the project

Answer

To create a new sprite

Answer

To store a value for later use

Answer

To control the flow of the program

Question 22

What does a 'clone' block do in block-based coding?

Accepted Answer

Creates a duplicate of an existing sprite

Answer

Moves a sprite to a different location

Answer

Changes the appearance of a sprite

Answer

Deletes a sprite

Question 23

In block-based coding, what is the difference between a 'local' variable and a 'global' variable?

Accepted Answer

Local variables are only accessible within the current sprite, while global variables can be accessed from anywhere in the project

Answer

Global variables are only accessible within the current sprite, while local variables can be accessed from anywhere in the project

Answer

Local variables are stored in memory, while global variables are stored on the hard drive

Answer

Global variables are stored in memory, while local variables are stored on the hard drive

Question 24

What is the main purpose of a 'function' block in block-based coding?

Accepted Answer

To group together a set of actions that can be reused

Answer

To create a new sprite

Answer

To store a value for later use

Answer

To control the flow of the program

Question 25

In block-based coding, which block is used to halt the program's execution?

Accepted Answer

Stop block

Answer

Start block

Answer

Event block

Answer

Loop block

Question 26

In block-based coding, which block is used to create an integer variable named 'myNum' that can store only whole numbers?

Accepted Answer

Define an integer variable named 'myNum'

Answer

Define a string variable named 'myNum'

Answer

Define a variable named 'myNum' and set it to 10

Answer

Define a boolean variable named 'myNum'

Question 27

In block-based coding, what is the primary purpose of using variables?

Accepted Answer

To store data or values

Answer

To create loops

Answer

To control the flow of a program

Answer

To run specific commands repeatedly

Question 28

What is the key difference between Boolean and Comparison blocks in block-based coding?

Accepted Answer

Boolean blocks check true or false conditions, while Comparison blocks compare values.

Answer

Comparison blocks check true or false conditions, while Boolean blocks represent values.

Answer

Boolean blocks are used for condition checking, while Comparison blocks compare values.

Answer

There is no difference between Boolean and Comparison blocks.

Question 29

In block-based coding, which of the following is a valid variable name?

Accepted Answer

my_score

Answer

age in years

Answer

5 points

Answer

for

Question 30

What is the main purpose of the 'wait' block in block-based coding?

Accepted Answer

To pause the execution of a program for a specified duration

Answer

To iterate through a set of commands multiple times

Answer

To evaluate whether a condition is true

Answer

To modify the value stored in a variable

Question 31

In block-based coding, what is the primary function of the 'play sound' block, and how can you effectively utilize it?

Accepted Answer

Using the 'play sound' block, you can add sound effects to your program that play when the block is activated.

Answer

The 'play sound' block allows you to add background music that plays continuously throughout your program.

Answer

The 'play sound' block lets you create and record your own custom sound effects for use in your program.

Answer

Block-based coding does not include a 'play sound' block for adding sound effects to programs.

Question 32

In block-based coding, how do you make your program speak when the green flag is clicked using the 'text to speech' block?

Accepted Answer

Connect the 'text to speech' block to the 'when green flag clicked' block.

Answer

Connect the 'text to speech' block to a 'when [event]' block, such as 'when space key pressed.'

Answer

Connect the 'text to speech' block to a 'repeat' block, such as 'repeat 10 times.'

Answer

Connect the 'text to speech' block to a 'forever' block.

Question 33

In block-based coding, what's the main purpose of the 'repeat' block?

Accepted Answer

Repeat a set of instructions multiple times

Answer

Store data for later use

Answer

Compare values and make decisions

Answer

Display information on the screen

Question 34

In block-based coding, which block is used to add two numbers?

Accepted Answer

+

Answer

-

Answer

x

Answer

/

Question 35

In block-based coding, what's the main reason for debugging?

Accepted Answer

To find and fix code errors.

Answer

To make code look better.

Answer

To make code run faster.

Question 36

Which of the following best describes the concept of a variable in block-based coding?

Accepted Answer

A named memory location that can store and modify data

Answer

A loop that repeats a set of blocks

Answer

A conditional statement that checks if a condition is true or false

Answer

A command that performs a specific action

Question 37

Which block-based coding platform is known for its easy-to-use drag-and-drop interface?

Accepted Answer

Scratch

Answer

C++

Answer

Python

Answer

Java

Question 38

What is the purpose of a loop block in block-based coding?

Accepted Answer

To execute a set of blocks multiple times

Answer

To create a custom function

Answer

To check if a condition is true or false

Answer

To store a value that can change

Question 39

Which of the following is NOT a common control structure used in block-based coding?

Accepted Answer

Do-while loop

Answer

If-else statement

Answer

For loop

Question 40

What is the purpose of a conditional statement in block-based coding?

Accepted Answer

To execute a set of blocks only when a specific condition is met

Answer

To create a loop

Answer

To define a variable

Question 41

What is the key difference between a variable and a constant in block-based coding?

Accepted Answer

Variables can store and change their values, while constants store fixed values

Answer

Variables are stored in memory, while constants are not

Answer

Variables are used for calculations, while constants are used for storing data

Question 42

Which of the following is a major advantage of using block-based coding?

Accepted Answer

It makes coding concepts accessible to beginners

Answer

It produces more efficient code than text-based coding

Answer

It is more secure than other coding languages

Answer

It reduces the need for debugging

Question 43

What is a typical challenge faced by students when learning to code with blocks?

Accepted Answer

Translating their ideas and problem-solving strategies into blocks

Answer

Debugging errors in their code

Answer

Creating efficient and optimized programs

Answer

Understanding the syntax of different blocks

Question 44

What will happen in a program after a 'repeat 10 times' block?

Accepted Answer

The code inside the 'repeat' block will run 10 times.

Answer

The program will stop running.

Answer

The code inside the 'repeat' block will run only once.

Question 45

What does a conditional statement (like 'if...then') determine in a program?

Accepted Answer

Which code block to execute based on a specific condition.

Answer

The number of times a loop will run.

Answer

The color of an object on the screen.

Question 46

What is the purpose of a variable in a block-based coding program?

Accepted Answer

To store and manage data that can change during the program.

Answer

To display text on the screen.

Answer

To create a loop in the program.

Question 47

Which block would you use to make a character move forward in a game?

Accepted Answer

Move 10 steps

Answer

Play sound 'meow'

Answer

Set size to 100%

Answer

Wait 1 second

Question 48

You want a cat sprite to meow when the spacebar is pressed. What kind of block would you use to achieve this?

Accepted Answer

Event

Answer

Control

Answer

Sound

Answer

Motion

Question 49

What is debugging in the context of block-based coding?

Accepted Answer

Finding and fixing errors in your code.

Answer

Saving your code to your computer.

Answer

Adding comments to your code.

Answer

Sharing your code with others.

Question 50

What is an algorithm in block-based coding?

Accepted Answer

A set of instructions that tell the computer what to do.

Answer

A variable that stores text.

Answer

A type of loop.

Question 51

You want a sprite to turn around completely.  If it turns 90 degrees with each block, how many blocks will you need?

Accepted Answer

4

Answer

2

Answer

3

Answer

1

Question 52

You have a variable called 'score' set to 0. Which block would you use to increase the score by 1?

Accepted Answer

Change 'score' by 1

Answer

Show variable 'score'

Answer

Set 'score' to 1

Answer

Hide variable 'score'

Question 53

What is the primary advantage of using block-based coding over text-based coding?

Accepted Answer

It is more visually intuitive and beginner-friendly.

Answer

It requires less memory to run.

Answer

It is faster to write complex programs.