Kiểm tra

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

• A. Motions

• B. Events

• C. Operators

• D. Sensing

• E. Control

2.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?

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• D. All of the above

• E. None of the above

3. 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?

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• E. None of the above

4. Given the operator

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

• A. 0

• B. 1

• C. 2

• D. 3

• E. None of the above

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

• A. (0, 20)

• B. (90, 30)

• C. (20, 30)

• D. (90, 20)

• E. None of the above

6. Which of the following scipts gives the same final outcome as the above script and scence?

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

• A. (50, 50)

• B. (250, 0)

• C. (50, 0)

• D. (90, 50)

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

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• 
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• E. None of the above

9.Which of the following is the correct scipt so that three cat will apear in the stage as expected result? (You can assume that the green flag is clicked)

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

• A. It can be 0 to 10

• B. It can be 1 to 10

• C. It can be 2 to 10

• D. It can be 3 to 10

• E. None of the above