Python Basics for Grade 12 Students

What are the basic data types in Python?

• float, string, boolean

• string, number, object

• int, float, str, list, tuple, set, dict

• boolean, character, array

How do you declare a variable in Python?

• let variable_name = value

• You declare a variable in Python by using the syntax: variable_name = value.

• variable_name : value

• var variable_name = value

What is the difference between a list and a tuple in Python?

• Lists can contain only numbers; tuples can contain any data type.

• Tuples are mutable; lists are immutable.

• Lists are faster than tuples in all cases.

• Lists are mutable; tuples are immutable.

Explain the use of 'if' statements in Python.

• 'if' statements are only for looping through lists in Python.

• 'if' statements are used to define functions in Python.

• 'if' statements are used to declare variables in Python.

• 'if' statements in Python are used for conditional execution of code blocks.

What is a loop in Python and how is it used?

• A loop in Python is a data structure for storing multiple values.

• A loop in Python is a control structure for repeated execution of code blocks.

• A loop in Python is a function that executes only once.

• A loop in Python is a type of variable used for calculations.

Describe the purpose of the 'for' loop in Python.

• To create a new variable in Python.

• The purpose of the 'for' loop in Python is to iterate over a sequence or iterable, executing a block of code for each item.

• To handle exceptions in Python.

• To define a function in Python.

What is the output of the following code: print(type(5))?

How do you create a dictionary in Python?

• Dictionaries are created with parentheses, for example: ('key', 'value').

• You can create a dictionary using square brackets, like this: ['key': 'value'].

• You can create a dictionary in Python using curly braces, like this: {'key': 'value'}.

• You must use a list to create a dictionary, such as: ['key', 'value'].

What is the significance of indentation in Python?

• Indentation is optional in Python and has no effect on code execution.

• Indentation is only used for comments in Python code.

• Indentation is significant in Python as it defines code blocks and enforces readability.

• Indentation is used to separate different programming languages in Python.

Explain the difference between 'break' and 'continue' in loops.

• 'break' exits the loop; 'continue' skips to the next iteration.

• 'break' pauses the loop; 'continue' restarts the loop from the beginning.

• 'break' skips to the next iteration; 'continue' exits the loop.

• 'break' continues the loop; 'continue' exits the loop entirely.