Chapter 5 - Reading Quiz -Python
A ________ constant is a name that references a value that cannot be changed while the program runs.
global
A ________ variable is accessible to all the functions in a program file.
global
It is recommended that programmers avoid using ________ variables in a program whenever possible.
global
A(n) ________ chart is also known as a structured chart.
hierchy
chart is a visual representation of the relationships between functions.
hierchy
Which of the following statements causes the interpreter to load the contents of the random module into memory?
import random
The Python library functions that are built into the Python ________ can be used by simply calling the required function.
interpreter
A ________ variable is created inside a function.
local
The main function contains a program's ________ logic which is the overall logic of the program
mainline
The Python standard library's ________ module contains numerous functions that can be used in mathematical calculations.
math
The approach known as __________ makes a program easier to understand, test and maintain
modularization
Functions that are in the standard library are stored in files that are known as
modules
Python comes with ________ functions that have already been prewritten for the programmer.
standard library
The top-down design breaks down the overall task of a program into a series of
subtasks
The ________ design technique can be used to break down an algorithm into functions.
top-down
In Python you can have a list of variables on the left side of the argument operator. T/F
True
In Python, a module's file name should end in
.py
One reason not to use global variables is that it makes a program hard to debug. T/F
True
Which of the following functions returns the largest integer that is less than or equal to its argument?
floor
One of the drawbacks of a modularized program is that the only structure you can use in such a program is the sequence structure. T/F
False
def main(): print("The answer is", magic(5)) def magic(num): answer = num + 2 * 10 return answer main()
25
Different functions can have local variables with the same names. T/F
True
What type of function can be used to determine whether a number is even or odd?
Boolean
A function definition specifies what a function does and causes the function to execute. T/F
False
A hierarchy chart shows all the steps that are taken inside a function. T/F
False
A local variable can be accessed from anywhere in the program. T/F
False
In Python there is no restriction on the name of a module file. T/F
False
The math function atan(x) returns one tangent of x in radians. T/F
False
The value assigned to a global constant can be changed in the mainline logic. T/F
False
Unfortunately, there is no way to store and call on functions when using turtle graphics. T/F
False
Unlike other languages, in Python the number of values a function can return is limited to one. T/F
False
chart is an effective tool used by programmers to design and document functions.
IPO
What does the following statement mean? num1, num2 = get_num()
The function get_num() is expected to return a value for num1 and for num2.
A value-returning function is like a simple function except that when it finishes it returns a value back to the part of the program that called it. T/F
True
One reason to store graphics functions in a module is so that you can import the module into any program that needs to use those functions. T/F
True
Python allows you to pass multiple arguments to a function. T/F
True
Python function names follow the same rules as those for naming variables. T/F
True
The function header marks the beginning of the function definition. T/F
True
The math function ceil(x) returns the smallest integer that is greater than or equal to x. T/F
True
The randrange function returns a randomly selected value from a specific sequence of numbers. T/F
True
To assign a value to a global variable in a function, the global variable must be first declared in the function. T/F
True
What is a group of statements that exists within a program for the purpose of performing a specific task?
a function
A value-returning function is
a function that will return a value back to the part of the program that called it
The first line in a function definition is known as the function
a header
A(n) ________ is any piece of data that is passed into a function when the function is called.
argument
A set of statements that belong together as a group and contribute to the function definition is known as a
block
The function header begins with the keyword _______ and is followed by the name of the function
def
The code for a function is known as a function
definition
To refer to a function in a module, Python uses _______ notation
dot
When a function is called by its name during the execution of a program, then it is
executed
Which of the following will assign a random integer in the range of 1 through 50 to the variable number?
number = random.randint(1, 50)
A(n) ________ is a variable that receives an argument that is passed into a function.
parameter
Arguments are passed by _____ to the corresponding parameter variables in the function.
position
The 'P' in the acronym IPO refers to
processing
The return values of the trigonometric functions in Python are in
radians
In a flowchart, a function call is depicted by a(n)
rectangle
A value-returning function has a(n) ________ statement that sends a value back to the part of the program that called it.
return
In a value-returning function, the value of the expression that follows the keyword ________ will be sent back to the part of the program that called the function.
return
A variable is available only to statements in the variable's
scope
The ________ of a local variable is the function in which that variable is created.
scope