Đề 1

Given the script and scene below. How many clones will be made in each time the green flag is clicked?

• 1

• 2

• 3

• 4

• unlimited

The stage is the space where sprites can move around. This space is two-dimensional. The horizontal direction goes from -240 to 240. The vertical direction ranges from?

• -180 to 180

• -360 to 360

• -90 to 90

• -240 to 240

• none of the above

In the stack of blocks below, how many times does the sprite move 10 steps?

• 6

• 7

• 8

• 9

• none of the above

What does the sprite cat would say?

• 68

• 86

• 74

• 47

• none of the above

Given the following script and scene. When up arrow key is pressed, the sprite Cat would move up. When down arrow key is pressed, the sprite Cat would move down. (Assume the green flag is clicked). Why doesn’t it work?

• “Change y” should be replaced by “Change x”

• Change y by 10 is too small.

• Change y by -10 is too small.

• Up arrow/Down arrow should be pressed.

• None of the above.

Given the following scene. What’s the expected result of variable “x”?

• 2

• 4

• 6

• 8

• none of the above

Given the following the script and scene. When the sprite is clicked, the cat would move from (0,0) to random position. Which of the following can slow down its speed?

• Increase the cat’s size.

• Add more script blocks to increase its weigh

• “Wait 0.2 seconds” should be replaced by “Wait 0.3 seconds”

• Set the initial position to (100, 100).

• None of the above

Michelle wants the cat to start in the middle of the stage, then move across the stage and grow. It works the first time she clicks the green flag - but not when she clicks it again! What's going on?

• Increase repeat 3 to repeat 5 or 10.

• Glide to … should be replaced Go to.

• Change size by … to Change size 20.

• Script blocks after When … should be put in a “Forever” loop.

• None of the above.

The following expression receives a numerical or logical value?

• 0

• 1

• False

• True

• none of the above

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

• Motions

• Events

• Operator

• Sensing

• Control