Programming Basics: Loops and Conditionals

What is the primary purpose of using a loop in block coding?

A conditional statement evaluates a condition and executes different actions based on the truth value.

What is a variable in block coding?

In programming, a ______ is a sequence of characters used for representing text.

Match the following terms with their definitions:

Number = 22 What would the output be of the variable 'number'?

Explain why the order of conditions in 'if/elif/else' statements is important.

What is the primary function of an if statement in programming?

What role does the elif keyword play in an if/elif/else statement?

Explain how the following code works: if score >= 90: grade = 'A'.

Loops

Loops repeat a block of code.
Used to automate tasks that need to be performed multiple times.
Types of loops include for loops and while loops.
for loops iterate over a sequence (e.g., a list).
while loops repeat as long as a condition is true.

Conditional Statements

Conditional statements control the flow of execution based on conditions.
These statements execute different blocks of code depending on whether a condition is true or false.
Common types include if, if/else, if/elif/else.

If/Elif/Else Example

This example demonstrates a conditional statement that checks multiple conditions and executes different blocks of code based on the outcome.

Example:

if age < 18:
  print("You are underage.")
elif age >= 18 and age <= 65:
    print("You are an adult.")
else:
  print("You are a senior citizen.")

Variables

Variables store data values in a program.
Can be assigned different data types such as strings, numbers, or booleans.
The name of a variable follows a convention to clearly represent its purpose.
This helps in reading and understanding the code.
Example: name = "Alice" or age = 30

String

A string is a sequence of characters.
Enclosed in either single (' ') or double (" ") quotes.
Example: "Hello, world!" or 'This is a string'

Integer

An integer represents a whole number.
Can be positive, zero, or negative.
Example: 10, -5, 0

Explore the fundamental concepts of loops and conditional statements in programming. This quiz covers types of loops, examples of conditional statements, and the use of variables. Test your understanding and improve your coding skills with practical examples.