Introduction to Programming with Python

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Questions and Answers

Which action correctly demonstrates reading data from the keyboard in Python?

  • `name = input()` (correct)
  • `write(name)`
  • `print('Enter your name:')`
  • `name = read()`

How can you declare a constant variable named PI with the value 3.14 in Python?

  • `PI = 3.14 # This is a constant`
  • `const PI = 3.14`
  • `PI = 3.14` (correct)
  • `CONSTANT PI = 3.14`

Which variable type would be most appropriate for storing a person's age?

  • `bool`
  • `str`
  • `int` (correct)
  • `float`

Which of the following code snippets will display 'Hello, World!' on the console?

<p><code>print('Hello, World!')</code> (C)</p> Signup and view all the answers

Given the requirement to calculate the area of a rectangle, which of the following outlines the correct sequence of steps?

<p>Input: length and width, Process: area = length * width, Output: area (C)</p> Signup and view all the answers

Which control structure is best suited for executing a block of code repeatedly until a specific condition is met?

<p><code>while</code> loop (B)</p> Signup and view all the answers

What is the scope of a variable declared inside a function?

<p>Local, accessible only within the function (A)</p> Signup and view all the answers

Which code snippet correctly initializes a 1D array (list) named numbers with 5 elements, all set to 0?

<p><code>numbers = [0] * 5</code> (D)</p> Signup and view all the answers

Which of the following is NOT an effective way to document code?

<p>Writing code that is as concise as possible, even if it reduces readability (C)</p> Signup and view all the answers

What is the binary equivalent of the decimal number 10?

<p>1010 (B)</p> Signup and view all the answers

Flashcards

What is a Variable?

A named storage location that holds a value that can be changed during program execution.

What is a Constant?

A named storage location that holds a value that cannot be changed during program execution.

What are Integers?

Whole numbers, both positive and negative, without any decimal points.

What are Real Numbers (Floats)?

Numbers that can have a fractional part (decimal point).

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What is a Character?

A single letter, number, symbol, or space.

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What is a String?

A sequence of characters.

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What are Control Structures?

A fundamental programming construct that controls the order in which statements are executed (e.g., if/else statements, loops).

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What are Functions/Modules?

A self-contained block of code that performs a specific task. Helps in organizing code and making it reusable.

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What is Variable Scope?

The region of the program where a variable can be accessed. Understanding scope prevents naming conflicts and unexpected behavior.

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What is a 1D Array?

A data structure that stores a collection of elements of the same type, accessed using an index.

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Study Notes

  • The below notes can be used to generate a pre-test for an Introduction to Programming course in Python

Input/Output Operations

  • Programs should be able to receive data from keyboard input
  • Programs should be able to display processed data to the computer screen

Variables and Constants

  • Programs must demonstrate the use of variables and constants
  • Students should understand different variable types – namely integers, reals, characters, and strings

Program Development

  • Students should develop and implement programs from provided problem statements
  • Proficiency in using control structures and functions/modules is expected

Functions/Modules

  • Programs should use functions/modules
  • A basic understanding of variable scope within functions/modules is expected

Data Structures

  • Programs should design, write, and modify programs using one-dimensional array processing

Documentation

  • Programs should be documented with standards required in the class

Number Systems

  • Students should be able to convert numbers from base 10 (decimal) to binary and hexadecimal

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