Worksheet Solutions: : Scratch Programming | Computer Applications for Class 9 PDF Download

Q.1. Fill in the blanks with the given words.
(i) The Script area shows the code for execution.
(ii) The Tabs present in the Blocks Area are Scripts, Costumes and Sounds.
(iii) To make the script say something you need to use the Looks block.
(iv) The default file extension of Scratch file is .sb2.
(v) The Repeat code is used to execute a group of codes for specified number of times.
(vi) The Stage shows the output of a script.
(vii) The default filename in Scratch is Untitled.
(viii) The Green flag is used to execute a script.
(ix) The code “wait 1 secs” is present in the Control block.
(x) The scratch stage is 480 pixels wide and 360 pixels high.

Q.2. State whether the following statements are True (T) or (F) False.
(i) It is possible to select a different sprite other than a cat. True
(ii) The ‘clear’ command of the Pen script is used to remove all line traces. True
(iii) The Sound script allows you to insert sound effects into your program.- True
(iv) The Repeat block is used to execute infinitely. False
(v) Move 10 steps refers to moving 10 pixels. True
(vi) The green colour is associated with the Motion scripts. False
(vii) The pen up command of the Pen script is used to trace a line with a moving object. True
(viii) The Scratch stage id 380 pixels high. True
(ix) The Backdrop library dialog allows you select different backgrounds for the stage. True
(x) The “next costume” code is present in the Looks Block. True