Page 59 - Scratch Programming Playground

Review Questions

Try to answer the following practice questions to test what
you’ve learned. You probably won’t know all the answers off
the top of your head, but you can explore the Scratch editor to
figure out the answers. (The answers are also online at http://
www.nostarch.com/scratchplayground/.)

1. what happens when a sprite moves after it has run the
pen down block?
2. Some code moves a sprite, but no line is drawn behind it.
what might cause this bug?
3. which block causes the lines in the Rainbow Lines pro-
gram to look like a rainbow?
4. which code block do you use to make the rainbow lines
thicker?
5. how do you turn on Turbo Mode? how do you turn it off?
6. how do you duplicate a sprite and its code blocks?

7. where does a sprite point when its direction is 90 degrees?
8. what is the degree direction for pointing up?
9. You want a sprite to point down and move in that direc-
tion. In which color of blocks category would you find code
blocks to do this?
10. how do you select a new backdrop from Scratch’s Back-
drop Library?

11. You see a sprite named Sprite1 in the Sprite List. how do
you rename this sprite?

raInBow LIneS In SpaCe! 33