Python Variables and Data Types Flashcard

Front

What is the correct syntax to assign Charlotte's age to a variable in Python?

Back

variable_name = value

Answer explanation

In Python, the correct syntax to assign a value to a variable is using the equals sign '='. Therefore, 'variable_name = value' is the correct choice for storing Charlotte's age.

Front

Olivia is learning to code and wants to name her variables correctly. Which of the following is NOT allowed in a variable name? Starting with a letter, Using underscores, Using letters and numbers, Containing spaces

Back

Containing spaces

Answer explanation

Variable names cannot contain spaces, as this would confuse the compiler or interpreter. They must start with a letter, can include underscores, and can contain letters and numbers.

Front

Aiden has 100 apples. What will be the output if he prints the number of apples he has using the following code:
num = 100
print(num)?

Back

100

Answer explanation

Aiden has 100 apples, and the code assigns this value to the variable 'num'. The print function outputs the value of 'num', which is 100. Therefore, the correct answer is 100.

Front

Scarlett is writing a Python program to ask users for their favorite color. Which function should she use to get user input?

Back

input()

Answer explanation

The correct function for getting user input in Python is input(). It prompts the user for input and returns it as a string, making it ideal for asking for a favorite color.

Front

What type of data does the input() function return? Options: Integer, Float, String, Boolean

Back

String

Answer explanation

The input() function in Python always returns user input as a string, regardless of whether the input looks like an integer, float, or boolean. Therefore, the correct answer is String.

Front

David is trying to combine a message with a number in Python. What will happen if he tries to add a string and an integer?

Back

It will throw an error

Answer explanation

In Python, adding a string and an integer will throw a TypeError. This is because Python does not support implicit conversion between these types for addition, requiring explicit conversion instead.

Front

Isla received a string input representing her age from a web form. How can she convert this string input to an integer?

Back

int()

Answer explanation

To convert a string input representing an age to an integer, Isla should use the int() function. This function takes a string and converts it to an integer, making it the correct choice among the options provided.

Front

Which of the following is a valid variable name? 9Ted, Ben Name, Ted@home, Ted_123

Back

Ted_123

Answer explanation

A valid variable name must start with a letter or underscore, cannot contain spaces, and cannot include special characters like '@'. 'Ted_123' meets all these criteria, making it the correct choice.

Front

Arjun is writing a program to print a greeting message. What will be the output of the following code: print('Hello', 'World')?

Back

Hello World

Answer explanation

The code print('Hello', 'World') outputs 'Hello World' because the print function in Python separates multiple arguments with a space by default. Therefore, the correct answer is 'Hello World'.

Front

Hannah is updating her budget tracker in Python. Which of the following is a correct way for her to reassign a variable representing her monthly savings? monthly_savings = 100, monthly_savings = '100', monthly_savings = 100.0

Back

All of the above

Answer explanation

All options are valid ways to reassign the variable 'monthly_savings'. It can be an integer (100), a string ('100'), or a float (100.0), demonstrating Python's dynamic typing.