Chapter 8

Introduction to Coding
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Exercises

1. Define Algorithm.

Ans: An algorithm is a set of step-by-step instructions given to a computer to solve a problem or complete a task.

2. What is Scratch?

Ans: Scratch is a visual programming language where users can create interactive stories, games, and animations by snapping blocks of code together.

3. What is the default position of the 'cat sprite' in the stage?

Ans: The default position of the 'cat sprite' is at the center of the stage, which is at coordinates (0, 0).

4. How many command groups are there in the blocks palette?

Ans: There are 9 command groups in the blocks palette in Scratch.
(They are: Motion, Looks, Sound, Events, Control, Sensing, Operators, Variables, and My Blocks.)

5. Write the features of block-based coding.

Ans: It is easy to learn and beginner-friendly.
        Uses drag-and-drop blocks instead of typing code.
        Reduces syntax errors.
        Helps to visualize the flow of the program.
        Encourages creativity and problem-solving.



EDITING BY - DEEPA DAS.

New Update 2026