Knowledge Organiser Y9 Term 2.2

Ava is creating a digital invitation for her birthday party. She wants to join the greeting "Hello" with her name to make a new string.

This is called...

• Floor division

• Concatentaion

• Iteration

• Integer division

Answer explanation

Joining two strings together to create a new string is known as concatenation. This process combines the strings end-to-end, making 'concatenaion' the correct choice among the options provided.

Emily is creating a personalized greeting card using Python. She wants to join two strings, 'Happy' and 'Birthday', to form a complete message. What symbol in Python should she use to join these two strings together?

• ,

• *

• -

• +

Answer explanation

In Python, the '+' symbol is used to concatenate or join two strings together. For example, 'Hello' + ' World' results in 'Hello World'. The other options do not serve this purpose.

Matilda is creating a digital diary and wants to store her daily thoughts, symbols, and even some numbers. She wonders if a string is a suitable data type for this purpose.

• True

• False

Answer explanation

True. A string is indeed a data type that can store a sequence of characters, including text, symbols, and numbers.

Chloe is setting up her new email account and needs to create a password. What data type should be used for a password, such as

C0ys1998*

• Float

• String

• Boolean

• Integer

Answer explanation

A password like C0ys1998* contains letters, numbers, and special characters, making it a string. Strings are the appropriate data type for storing text, including passwords, while other types like Float, Boolean, and Integer are not suitable.

Aarav is registering for a new course online.

firstname = input("Enter your firstname")

surname = input(“Hey " + __________ + " Enter your surname")

What is missing between the + symbols?

• surname

• secondname

• firstname

• first name

Answer explanation

The missing part between the + symbols is 'firstname'. This allows the input prompt to greet the user with their first name before asking for their surname, making it more personalized.

Neha is creating a secure password for her new email account. She decides to use the password "C0ys1999*".

passwordLength = len(password)

What is stored in the variable, "passwordLength"?

• 8

• 14

• 9

Answer explanation

The variable 'password' contains the string 'C0ys1999*', which has 9 characters. Therefore, the function len(password) returns 9, which is stored in 'passwordLength'. Thus, the correct answer is 9.

Oliver is trying to set a password for his new online account. He decides to use the password = ("C0ys1999*").

He then wants to check the length of his password using passwordLength = len(PASSWORD).

Why will this code get a syntax error?

• The variable is spelt incorrectly

• The wrong case has been used

• The command order is incorrect

Answer explanation

The code will raise a syntax error because 'PASSWORD' is used instead of 'password'. Python is case-sensitive, so the variable name must match exactly, making 'The wrong case has been used' the correct choice.

Rohan is writing a message to his friend and wants to know if spaces are counted in the length of the message.

"Hi Bob"

• True

• False

Answer explanation

The statement is True because when counting the length of the string "Hi Bob", the space between 'Hi' and 'Bob' is included in the count, making the total length 7.

Isla is writing a message to her friend and she types the following string:

"Hi Bob"

What is the length of characters in her message?

• 6

• 5

Answer explanation

The string "Hi Bob" contains 6 characters, including the space. Therefore, the correct answer is 6.

Aarav is working on a project where he needs to join two text strings together to create a single string. This process is known as...

C (a)  

Answer explanation

When two text strings are joined together, the process is called 'concatenation'. The term 'oncatenation' is incorrect and does not exist in this context.