Conditional logic (if-then decisions) in Intro to Computing - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is conditional logic in computing?

Conditional logic is a way for a computer to make decisions by checking if something is true or false, then doing different actions based on that.

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Explain the if-then structure in simple terms.

It means: if a condition is true, then do something. If not, skip it or do something else.

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What happens when the condition in an if-statement is false?

If the condition is false, the computer skips the 'then' part and moves on to the next instructions or checks other conditions.

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How is an if-then decision like choosing what to wear based on weather?

Just like you decide to wear a raincoat if it is raining, a computer uses if-then to choose actions based on conditions it checks.

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What is the role of an else in conditional logic?

Else tells the computer what to do if the 'if' condition is not true. It is like a backup plan.

What does an if-statement check?

A How to store data

B If a condition is true or false

C What color to display on screen

D How many times to repeat an action

An if-statement checks whether a condition is true or false to decide what to do next.

What happens if the condition in an if-statement is false and there is no else?

A The computer does nothing for that if-statement and moves on

B The computer repeats the if-statement

C The computer crashes

D The computer always runs the then-part

If the condition is false and no else is given, the computer skips the then-part and continues.

Which real-life example best matches an if-then decision?

A If it rains, then take an umbrella

B Always eat breakfast

C Count how many steps you take

D Write a letter

Deciding to take an umbrella only if it rains is like an if-then decision.

What does the else part do in an if-else statement?

A Runs before the if condition

B Runs only if the if condition is true

C Runs when the if condition is false

D Stops the program

Else runs when the if condition is false, providing an alternative action.

Which symbol is commonly used to start an if-statement in many programming languages?

A switch

B for

C while

D if

The keyword 'if' is used to start an if-statement.

Describe how an if-then decision works using a simple real-life example.

Think about a daily choice you make based on a yes/no question.

Explain the difference between if and else in conditional logic.

Consider what happens when the condition is true versus false.