Subprograms unit 2

Question 1

What is a subprogram?

Answer 1

A section of code within a larger program that performs a specific task.

Question 2

What is a function?

Answer 2

A subprogram that returns a value to the main program.

Question 3

What is a procedure?

Answer 3

A subprogram that does not return a value to the main program.

Question 4

What are the benefits of using subprograms?

Answer 4

1. Makes code easier to manage.
2. Improves reusability.
3. Makes code easier to read and debug.
4. Allows for modular design.

Question 5

What is a parameter?

Answer 5

A value that is passed into a subprogram when it is called.

Question 6

What is the difference between local and global variables?

Answer 6

Local variables can only be used inside the subprogram.

Global variables can be used anywhere in the program.

Question 7

Why is using local variables better in subprograms?

Answer 7

It prevents accidental changes to data in other parts of the program.

Question 8

What does “passing data into and out of subprograms” mean?

Answer 8

Sending input values into the subprogram (parameters) and possibly getting a result back (return value).

Question 9

What is a user-defined subprogram?

Answer 9

A function or procedure that you create yourself for a specific task.

Question 10

What is a pre-existing subprogram?

Answer 10

A built-in function provided by the programming language (e.g. len(), print() in Python).

Question 11

Example: Define a simple Python function that returns the square of a number.

Answer 11

def square(num):
return num * num