Class 7 & 8 Coding Activity: If Conditional Statement

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Questions and Answers

What is the purpose of Step 2 in Activity 3?

To wait for the customers (correct)
To blend the strawberries
To add strawberries
To serve the customer

What condition is checked in Step 3 of Activity 4?

If the customer is a duck (correct)
If the strawberries are ripe
If the customer arrives
If the beaver is ready

What happens in Step 4 of both Activity 3 and Activity 4?

The beaver blends the fruit (correct)
The customer arrives
The customer is served
The strawberries are added

What is the purpose of Activity 5?

To pick match sticks and add them to the pile (C) Signup and view all the answers

What is the main difference between Activity 3 and Activity 4?

The condition checked in the if-statement (B) Signup and view all the answers

What is the purpose of Step 5 in Activity 3?

To end the program (D) Signup and view all the answers

What is the limitation of the rat in Activity 5?

The rat can only pick one match stick at a time (A) Signup and view all the answers

What is the common step in all three activities?

Wait for the customer to arrive (C) Signup and view all the answers

What is Beaver's job in the fruit processing unit?

To prepare juice in specific blenders based on fruit type (D) Signup and view all the answers

In which blender should Beaver prepare the juice if the fruit is a strawberry?

Blender #2 (A) Signup and view all the answers

What is the first step in the algorithm to prepare juice?

Check the types of fruits on the conveyor belt (C) Signup and view all the answers

In the snake and giraffe puzzle, what is the purpose of placing giraffe_1 and snake_1?

To create a path for the car to reach the banana (C) Signup and view all the answers

What is set to a length of 5 in the snake and giraffe puzzle?

Snake_1's length (A) Signup and view all the answers

What is the final step in the algorithm to prepare juice?

Repeat steps 2 to 4 until no fruits are left (B) Signup and view all the answers

What is the purpose of the program written in Task 2?

To help the baby monkey get the banana (C) Signup and view all the answers

What is the purpose of setting the height of giraffe_0 in the snake and giraffe puzzle?

To create a path for the car to reach the banana (C) Signup and view all the answers

What is the purpose of the flowchart in the given context?

To determine the final grade achieved (C) Signup and view all the answers

What should be printed if the grade is less than 75?

You are not promoted to the next grade (C) Signup and view all the answers

What will be the output of the program if x is assigned a value of 5?

x is a positive number (C) Signup and view all the answers

What will be the output of the program if y is assigned a value of -5?

y is either 0 or a negative number (A) Signup and view all the answers

What will be the output of the program if z is assigned a value of 0?

z is 0 (A) Signup and view all the answers

What is the purpose of the nested-if in the program?

To check multiple conditions and print the appropriate message (B) Signup and view all the answers

What is the main purpose of a loop in programming?

To automate repetitive tasks (B) Signup and view all the answers

What is a characteristic of a for loop?

It is used to iterate over a sequence (C) Signup and view all the answers

What is a nested loop?

A loop that contains another loop within it (D) Signup and view all the answers

What is the purpose of a while loop?

To repeatedly execute a block of code while a condition is true (A) Signup and view all the answers

What is a characteristic of a nested while loop?

It is used to perform operations that require more than one level of iteration (A) Signup and view all the answers

What is the difference between a for loop and a while loop?

A for loop iterates over a sequence, while a while loop checks a condition (B) Signup and view all the answers

What is an advantage of using loops in programming?

They make coding more efficient (A) Signup and view all the answers

What is a common use case for nested loops?

To perform operations that require more than one level of iteration (D) Signup and view all the answers

What is the output of type(4)?

integer (D) Signup and view all the answers

What is the purpose of comments in code?

To make code more readable (B) Signup and view all the answers

How do you define a single-line comment in Python?

Using the hash symbol (#) (C) Signup and view all the answers

What is the output of type(4.5)?

float (C) Signup and view all the answers

What is the purpose of inline comments?

To add a short description next to the code (D) Signup and view all the answers

How do you define a multiline comment in Python?

Using triple quotes (D) Signup and view all the answers

What is the output of type("Welcome")?

string (C) Signup and view all the answers

When are comments ignored by the interpreter?

During code execution (A) Signup and view all the answers

Study Notes

Coding Activities for Classes VII & VIII

Activity 3: If Conditional Statement involves writing an algorithm, flowchart, and program to make a beaver blend strawberries and serve them to a customer.
The steps involved are:
Wait for the customer to arrive
If the customer arrives, add strawberries
Blend and serve
Repeat the process until the last customer arrives

If-else Conditional Statement

Activity 4 involves writing an algorithm, flowchart, and program to make a beaver blend blackberries and serve them to a duck customer, or blend strawberries and serve them to other customers.
The steps involved are:
Wait for the customer to arrive
If the customer is a duck, add blackberries
Else, add strawberries
Blend and serve
Repeat the process until the last customer arrives

Loops

Activity 5 involves writing an algorithm, flowchart, and program to make a rat pick matchsticks and add them to a pile.
Loops are used to automate repetitive tasks.
Types of loops:
For loop: used to iterate over a sequence or iterable objects
Nested for loop: a loop within another loop
While loop: used to repeatedly execute a block of code while a condition is true
Nested while loop: a loop structure with another while loop inside it

Variables and Data Types

Task 2 involves writing an algorithm, flowchart, and program to help a baby monkey get a banana.
The task involves understanding different data types:
Integer: a whole number (e.g. 4)
Floating-point number: a decimal number (e.g. 4.5)
String: a sequence of characters (e.g. "Welcome")
Boolean: a true or false value (e.g. False)

Comments

Comments are used to add descriptions to the code to make it easier to understand.
Types of comments:
Single-line comments: marked using the hash (#) symbol at the beginning of a line
Inline comments: single-line comments written next to the code on the same line
Multiline comments: used to write multiple lines of description, marked using triple quotes

Input and Output

Task 1 involves writing a program to implement different scenarios using input and output coding concepts.
The scenarios involve:
Assigning a value to a variable and printing a message based on the value
Using nested-if statements to implement multiple scenarios

Coding Concepts

Loops are used to automate repetitive tasks.
There are different types of loops: for loop, nested for loop, while loop, and nested while loop.
Loops are used to perform operations that require multiple levels of iteration.

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Description

Create an algorithm, flowchart, and program to make a beaver blend strawberry and serve it to a customer using if conditional statements.