N5 - Python Recap

What does input("Enter your name: ") do?

• Displays your name

• Prints a message

• Asks the user for input

• Creates a variable

Answer explanation

The function input("Enter your name: ") prompts the user to enter their name, effectively asking for input. It does not display or print anything by itself, nor does it create a variable directly.

Which line outputs a message to the screen?

• input("Message")

• print("Message")

• message = "Message"

• display("Message")

Answer explanation

The correct choice is 'print("Message")' because it is the function used in Python to output messages to the screen. The other options do not display messages: 'input' takes input, assignment does not output, and 'display' is not a standard function.

What is the output of: print("Hello" + "World")

• Hello + World

• Hello World

• HelloWorld

• Error

Answer explanation

The expression 'Hello' + 'World' concatenates the two strings without any space, resulting in 'HelloWorld'. Therefore, the correct output is 'HelloWorld'.

What is wrong with this line? print("Your age is " + age)

• Nothing

• It needs int(age)

• It needs str(age)

• The + is incorrect

Answer explanation

The line is incorrect because 'age' is likely an integer. To concatenate it with a string, it needs to be converted to a string using str(age). Thus, the correct choice is 'It needs str(age)'. This allows proper string concatenation.

Which input line saves the response in a variable?

• print("Enter your name")

• input("Enter your name")

• name = input("Enter your name: ")

• response = print("Enter name: ")

Answer explanation

The correct choice is 'name = input("Enter your name: ")' because it assigns the user's input to the variable 'name'. The other options either do not save the input or use incorrect syntax.

Which line assigns the value 12 to a variable?

• 12 = age

• age == 12

• age = 12

• assign age 12

Answer explanation

The correct line is 'age = 12', which uses the assignment operator '=' to assign the value 12 to the variable 'age'. The other options either use incorrect syntax or do not perform an assignment.

Which is a string?

• "17"

• 17

• True

• 17.0

Answer explanation

The correct choice is "17" because it is enclosed in quotes, making it a string. The other options are either numbers or a boolean, which are not strings.

What type of data is stored by this line? rain = False

• Integer

• String

• Boolean

• Float

Answer explanation

The line 'rain = False' assigns a value of 'False' to the variable 'rain', which is a Boolean data type. Boolean values represent truth values, typically 'True' or 'False', making 'Boolean' the correct choice.

What is wrong with this code? age = input("Enter age: ") total = age + 5

• You can't add 5 to a string

• input() can't be used like that

• + is not valid

• Nothing

Answer explanation

The code attempts to add 5 to the variable 'age', which is obtained from input() as a string. You can't perform arithmetic operations on strings without converting them to integers first, making this operation invalid.

Which line shows correct variable naming?

• 2age = 5

• age-2 = 5

• age2 = 5

• age 2 = 5

Answer explanation

The correct variable naming is 'age2 = 5'. It uses letters and numbers without spaces or special characters. '2age' starts with a number, 'age-2' uses a hyphen, and 'age 2' has a space, which are all invalid in variable names.