Bài 4-qt-ta

What is the primary purpose of the "Repeat" loop block in Blockly?

• Execute a set of commands a fixed number of times

• Check a condition before executing commands

• Create a new variable

• Perform arithmetic operations

Which Blockly loop block is best suited for iterating until a condition is met?

• Repeat block

• While block

• For each block

• Count with block

In Blockly, what does the "For each" loop block do?

• Iterates over each element in a list

• Repeats a fixed number of times

• Checks multiple conditions

• Generates random numbers

What happens if the condition in a While loop block in Blockly is initially false?

• The loop executes once

• The loop does not execute at all

• The loop runs indefinitely

• The program crashes

Which Blockly loop block allows you to specify a range of numbers for iteration?

• Repeat block

• While block

• Count with block

• For each block

To sum numbers from 1 to 10 in Blockly, which loop block would be most efficient?

• Count with block from 1 to 10

• While block with a counter

• For each block with a list

• Repeat block 10 times

What does the "Break" block do when placed inside a loop in Blockly?

• Skips the current iteration

• Exits the loop entirely

• Restarts the loop

• Pauses the loop

In Blockly, how can you create an infinite loop using the While block?

• Set the condition to "true"

• Leave the condition empty

• Use a variable that never changes

• Set the condition to "false"

Which loop block in Blockly is best for processing each character in a string?

• For each block with a string converted to a list

• Repeat block with string length

• While block with a counter

• Count with block from 1 to string length

To find the first number divisible by 5 in a list, which loop block and mechanism would you use in Blockly?

• For each block with a Break block

• Repeat block with a fixed count

• While block with a counter

• Count with block from 1 to list length