ICT Grade 8 REVISION

Explain the relationship between an algorithm and a flowchart. How does a flowchart represent an algorithm?

Answer explanation

An algorithm is a step-by-step procedure or set of instructions for solving a problem or accomplishing a specific task.

On the other hand, a flowchart is a graphical representation of an algorithm.

What is Python?

Answer explanation

Python is a high-level, interpreted, and general-purpose programming language known for its simplicity and readability.

What are the key features of Python?

Answer explanation

Some key features of Python include its easy-to-read syntax, dynamic typing, automatic memory management, extensive standard library, and support for multiple programming paradigms such as procedural, object-oriented, and functional programming.

What are the different data types available in Python?

Answer explanation

   Python supports various built-in data types, including: Numeric types: int, float

Sequence types: list Text type: str Boolean type: bool

Explain the syntax of the if statement in Python and provide an example code snippet that demonstrates its usage.

Answer explanation

The if statement in Python is used to perform conditional execution of code based on a given condition. Its syntax consists of the keyword "if" followed by a condition, followed by a colon (:). The code block that follows the if statement is indented and executed only if the condition is evaluated as True.

Example code snippet:

 

# Example code using if statement x = 10

if x > 5:

print("The value of x is greater than 5.")

How do you use the input() function in Python to receive user input? Provide an example code snippet that demonstrates its usage.

Answer explanation

The input() function in Python is used to receive user input. It asks the user for input and waits for them to enter a value.

Here's an example code snippet:

name = input("Enter your name: ") print("Hello, " + name)

Explain the purpose of the print() function in Python. Provide an example code snippet that demonstrates how to print multiple values using this function.

Answer explanation

The print() function in Python is used to display or output.

Here's an example code snippet that demonstrates printing multiple values: name = "John"

age = 25

print("Name:", name, "Age:", age) Output

Name: John Age: 25

How do you convert a string to an integer in Python? Describe the usage of the int() function and provide an example code snippet.

Answer explanation

To convert a string to an integer in Python. Here's an example code snippet:

num_str = "10" num_int = int(num_str) print(num_int)

What is the purpose of the type() function in Python? How does it help in determining the data type of a value or variable? Provide an example code snippet that illustrates its usage.

Answer explanation

The type() function in Python is used to determine the data type of a value or variable.

Here's an example code snippet: x = 5

print(type(x))

what does this python code do?

Answer explanation

Enter two numbers and calculates their sum, product, and difference.