Strings and Variables

Question 1

”, ‘

Answer 1

Used to create a string
ex: “Hello”, ‘345’

Question 2

\

Answer 2

Used to escape “ and ‘ when appropriate
ex: print(‘I/’m a cat’) –> I’m a cat

Question 3

\n

Answer 3

Creates new line
ex: print(“Hello\nthere”) –>
Hello
there

Question 4

\t

Answer 4

Creates tab
ex: print(“Hello\tthere”) –>
Hello there

Question 5

”””

Answer 5

Automatically puts newlines when used in place of “ or ‘
ex: print(“"”Why,
hello there”””) –>
Why,
Hello there

Question 6

Concatenation

Answer 6

Adding strings together
ex: print(“Spam” + “Eggs”) –> SpamEggs, print(“1”+”2”+”3”) –> 123

Question 7

Strings can be multiplied by floats

Answer 7

False, only integers

Question 8

=

Answer 8

Creates variable
ex: name = “Anna”

Question 9

Python is a case sensitive languauge

Answer 9

True

Question 10

What can be used as a name in Python?

Answer 10

Allowed: Letters, Numbers, Underscores
ex: this_is_a_normal_name = 7

Question 11

You can start a name with a number

Answer 11

False
ex: 123abc = 7 –> “SyntaxError: invalid syntax”

Question 12

You can reassign a variable as much as you want

Answer 12

True, though not good practice

Question 13

input()

Answer 13

Function to get input from user
ex: x = input()

Question 14

Even if the user enters a number as input, it is processed as a string.

Answer 14

True

Question 15

input(“ “), input(‘ ‘)

Answer 15

Creates prompt message
ex: name = input(“Enter your name: “)

Question 16

int()

Answer 16

Converts input/variable to an integer
ex: age = int(input())

Question 17

str()

Answer 17

Converts input/variable to a string
ex: print(“you are now” + str(age))

Question 18

float()

Answer 18

Converts input/variable to a float
ex: money = float(input())

Question 19

+=, -=, *=, /=, %=, etc.

Answer 19

In-place operators. Allow you to write code like x= x+3 more concisely
ex: x += 3

Question 20

:=

Answer 20

Walrus operator, allows you to assign values to variables within an expression, including variables that do not exist yet.
ex: num = int(input())
print(num) –>
print(num:=int(input()))