Question 1

Question 1Carefully go through some sample scripts given below. What is happening in each of these scripts ?

Accepted Answer

Script 1When the sprite is clicked, it will repeatedly move 5 steps in the direction it's facing. If it reaches the edge of the screen, it will bounce back and continue to move 5 steps infinitely.Script 2When the sprite is clicked, it will repeatedly move 5 steps in the direction it's facing. If it reaches the edge of the screen, it will bounce back and it will also gradually rotate clockwise if it's facing right, or anticlockwise if it's facing left.Script 3When the green flag is clicked, the sprite will face to the right, resize to 60% of its original size and move to the position with coordinates (-100, -70). It will check if it's touching another sprite named "Sprite1". If it is, it will display the text "Woof!" in a speech bubble for 2 seconds.

Question 2

Question 2How are following two scripts different from one another ?

Accepted Answer

The key distinction between the given scripts is that in the first script, the "Woof!" message will be displayed once when the sprite is touching "Sprite1". In the second script, because of the forever loop, the "Woof!" message will be repeatedly displayed every time the sprite is touching "Sprite1", as long as the program is running.

Question 3

Question 3Create a fun game in scratch where there are two sprites on the stage cat sprite and a ball sprite. Ball is forever moving on stage. The cat sprite's movement is controlled by pressing all arrow keys : up/down/left/right. If the cat sprite touched the ball sprite, it exclaims "Hurray!!".

Accepted Answer

Below is the scratch script for the game:

Question 4

Question 1Write a script/program to draw a heptagon on the stage.

Accepted Answer

Below is the scratch script to draw a heptagon on the stage:

Question 5

Question 2Write a script/program to draw an Octagon on the stage.

Accepted Answer

Below is the scratch script to draw an octagon on the stage:

Question 6

Question 3Using drawing commands, carefully design a script to draw the adjacent figure on the stage.

Accepted Answer

Below is the scratch script to draw the house on the stage:

Question 7

Question 1In which block category do you find blocks to start your script ?OperatorsEventsDataMotion

Accepted Answer

EventsReason — Hat blocks are used to start a script and are usually found in Events category of blocks.

Question 8

Question 2In which category do you find block to change the direction of sprite ?OperatorsEventsDataMotion

Accepted Answer

MotionReason — Motion category of blocks contains blocks for the movement of a sprite.

Question 9

Question 3The background on which your script runs or your sprite moves, is called ............... .SpriteBackdropBackgroundThe stage

Accepted Answer

The stageReason — The background on which your script runs or your sprite moves, is called the stage.

Question 10

Question 4The background imagery of the stage is known as ............... .SpriteBackdropBackgroundThe stage

Accepted Answer

BackdropReason — The background imagery of the stage is known as backdrop.

Question 11

Question 5Which of the following command will leave impression of sprite on the stage ?Pen downPen upStampDown

Accepted Answer

StampReason — Stamp command leaves an impression of sprite on the stage.

Question 12

Question 6Which of the following command will prevent your sprite to move off the stage ?go to x .......... y ..........set x to ..........If On edge, bouncechange x by ..........

Accepted Answer

If On edge, bounceReason — If On edge, bounce command checks to see if the sprite is on the edge of the stage. If the sprite is on the edge, then it flips the sprite around so that it faces the other way. Thus, the sprite cannot get off the stage.

Question 13

Question 7Which of the following will take action based on an action only once ?repeat until if thenrepeat ..........none of these

Accepted Answer

if thenReason — The if then block takes an action depending on a certain condition.

Question 14

Question 8From the given table of letters, find words / terms related to Scratch (can be left-to-right, right-to-left, top-to-bottom, diagonally upwards, downwards etc.)

Accepted Answer

The words are as follows:CONTROLMOVEPROGRAMSCRATCHSCRIPTSPRITESTAGE

Question 15

Question 9Look at the section of code opposite that controls a sprite.Write down what you think the user will see when the green flag is clicked.

Accepted Answer

When the green flag is clicked, the sprite is at the same position.

Question 16

Question 10Why did you think the sprite behaved this way ? (refer to above question)

Accepted Answer

The sprite behaved this way because the sprite moved forward 10 steps and then moved backwards the same number of steps.

Question 17

Question 11A position on the stage is also called ................ .pospartpixeldot ?

Accepted Answer

pixelReason — A position on the stage is also called pixel.

Question 18

Question 12Name the block to replay an action (or a set of actions) for a specific number of timesrepeat blockif blockforever blockrepeat until block

Accepted Answer

repeat blockReason — The repeat block is used to repeat a code a specific number of times.

Question 19

Question 13Name the block to keep repeating a set of action endlesslyrepeat blockif blockforever blockrepeat until block

Accepted Answer

forever blockReason — The forever block is used to keep repeating a set of action endlessly.

Question 20

Question 14Name the block used to perform an action or a set of actions only if some condition is true or another action has happened firstrepeatifcheckwait

Accepted Answer

ifReason — The if block is used to perform an action or a set of actions only if some condition is true or another action has happened first.

Scratch Programming I

Application Oriented Questions

Lab Activity

Objective Type Questions

Theoretical Questions