Using selection | Computing | Quizalize & Oak National Academy

Starter quiz

The data a variable holds can ______ throughout the running of a program.
- change ✓
- not change
The `=` symbol in Python is used for...
- assignment. ✓
- equations.
- comparison.
Which of the following is an example of a string?
- `100`
- `True`
- `3.14`
- `"Hello world!"` ✓
What name would be displayed when this Python program is run? ```name = "Izzy" name = "Lucas" name = "Izzy" print (name)```
- `name`
- `Izzy` ✓
- `Lucas`
What is the result of the following Python expression? ```10 + 5 * 2```
- '20' ✓
What function is used to convert user input from a string to an integer in Python?
- `input()`
- `print()``
- `int(input())` ✓
- `int()`

Write the Python code to store the number 25 in a variable called age.
- 'age = 25' ✓
In Python, which keyword allows you to create a block of code that only executes when a certain condition is true?
- `print`
- `else`
- `if` ✓
- `input`
In Python, which of the following code blocks demonstrates a correct way to use an if-else statement?
Which if statement would correctly check if the variable score is greater than or equal to 80?
- `if score >= 80:` ✓
- `if score > 80:`
- `if score = 80:`
- `if score <= 80:`
You are creating a program for a game where the player wins if they roll a 6 on a dice. Write the if statement that would check if the variable `dice_roll` is equal to 6.
- 'if dice_roll == 6:' ✓

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Selection is used when there is more than one possible path for a program to follow.
Relational operators can be used to compare the values of expressions.
Expressions formed using relational operators evaluate to either True or False.
Logical expressions can be built using a combination of relational and logical operators.

The = symbol is used to check if a variable is equal to a value (comparison).

The = symbol is used in Python for assignment. The == operator is used for comparison.

Relational operators - compare two values and produce the result of True or False
Condition - an expression that evaluates to True or False
Selection - used when there is more than one possible path for a program to follow
Logical expression - an expression that combines relational and logical operators