ICT Grade 10 Chapter 5: Decision Blocks and Boolean Logic

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What does the compare texts block in App Inventor allow us to determine?

Whether one string is a substring of another

Whether two strings are equal (correct)

Whether a string contains a specific character

Whether a string is longer than another

What is the purpose of trimming a string?

To remove leading and trailing spaces from a string (correct)

To add extra spaces to a string

To concatenate two strings

To convert all characters to uppercase

In App Inventor, what is the purpose of the text join block?

To format output text by combining different strings (correct)

To check if a string contains a specific character

To compare two strings and determine which is larger

To split a string into multiple substrings

What is the function of the decision block in App Inventor?

To execute specific code based on a condition Signup and view all the answers

When comparing two strings in App Inventor, what Boolean logic is typically used?

Equal to logic Signup and view all the answers

How can we determine if one string is less than another in App Inventor?

By using the compare texts block Signup and view all the answers

What block in MIT App Inventor allows you to compare two numbers?

Math drawer Signup and view all the answers

In the Test Average App, what happens if the average of the three test scores is exactly 95?

The app does not display any message. Signup and view all the answers

What component is used in the Test Average App to input the three test scores?

TextBoxScore1 Signup and view all the answers

Which block's operator can be used to check if one value is less than or equal to another in MIT App Inventor?

= operator in the Math drawer Signup and view all the answers

What property changes if the average in the Test Average App is greater than 95?

LabelPrompt's Text property Signup and view all the answers

Which block type is used to create Boolean expressions in MIT App Inventor that are tested by decision blocks?

Logic blocks Signup and view all the answers

What type of expressions are commonly tested in decision-making in a computer program?

Boolean expressions Signup and view all the answers

Where can the 'if then' block be found in App Inventor?

Built-in section, in the Control drawer Signup and view all the answers

What happens if the Boolean expression #1 in the 'if then else' block is false?

The program jumps to the else socket Signup and view all the answers

In a computer program, what does the value 'false' typically signify?

The program should skip the current block of code Signup and view all the answers

Which drawer contains the 'if then else' block in App Inventor?

Control drawer Signup and view all the answers

When using Boolean expressions, what happens if none of the expressions are true in an 'if then else' block?

The program executes all instructions in the 'else' socket Signup and view all the answers

ICT Grade 10 Chapter 5: Decision Blocks and Boolean Logic

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