Đề 7

Building blocks in Scratch includes many categories, for example, Motion, Looks, Sound, Events. Which category does the following block belong to?

• Motions

• Events

• Operators

• Sensing

• Control

Referring to the script and scene below. The Scratch Cat should do a flip when the space key is pressed. But when the space key is pressed, nothing happens! How do we fix the program?

• The program needs a "When flag click" to start

• "wait 0.1 seconds" should be put after "turn 90 degrees" so there is a tiny pause

• "turn 90 degrees" should be put in the loop

• All of the above

• None of the above

In this project, when the green flag is clicked, the Scratch Cat should say "Meow, meow, meow!" in a speech bubble and as a sound. But the speech bubble happens before the sound -- and the Scratch Cat only makes one "Meow" sound! How to fix it?

• "start sound meow" should be put in the loop "repeat 3"

• "start sound meow" should be put in the front of loop "repeat 3"

• "start sound meow" should be put after loop "repeat 3"

• "repeat 3" should be removed

• None of the above

Given the operator. What’s the result of variable “n” when the green flag is clicked?

• 0

• 1

• 2

• 3

• None of the above

What is the cat’s position after clicking the green flag?

• (0, 90)

• (90, 30)

• (20, 30)

• (90, 20)

• None of the above

Which of the following scripts gives the same final outcome as the above script and scene?

• 
• 
• 
• 
• 

Given the following scene. What is the cat’s position after clicking the green flag?

• (50, 50)

• (250, 0)

• (50, 0)

• (90, 50)

• None of the above

Given the cat is initially at (0,0), which of the following script will give the same outcome?

• 
• 
• 
• 
• None of the above

Which of the following is the correct script so that three cats will appear in the stage as expected result? (You can assume that the green flag is clicked)

• 
• 
• 
• 
• None of the above

Referring the following script below. What’s the result of “n”?

• It can be 0 to 10

• It can be 1 to 10

• It can be 2 to 10

• It can be 3 to 10

• None of the above