Test Yourself: Different Ways to Broadcast

How many times will you hear the sound when you run the script below?

Choose one:

0

No.

1

No; consider the meaning of "until done" in the block.

4

Right!

8

No.

How many times will you hear the sound when you run the script below?

Choose one:

0

No.

1

Right; because the play sound blocks don't wait for the previous block to finish the playing, it will sound as if all four sounds are played simultaneously.

4

No; although each block is playing the sound, each will play it (nearly) simultaneously, because they won't wait "until [the previous block is] done" .

8

No.

How many times will you hear the note 60 play when you click on the green flag?

When I receive playnotes, play note 60 3x times

0

No.

1

Nope.

3

Correct; because each broadcast won't wait before it lets the next block run, you will hear each invocation of the when I receive "playnotes" block set at the same time.

4

No.

8

No.

12

No; because each broadcast won't wait before it lets the next block run, you will hear each invocation of the when I receive "playnotes" block set at the same time.

How many times will the sound be played when you click the green flag?

0

No.

1

Right!

2

Nope.

4

No.

How many times will the sound be played when you click the green flag?

0

Correct!

1

No; look carefully at the chain of broadcast blocks.

2

Nope.

4

No.