Chapter 5

Question 1

block

Answer 1

A group of consecutive statements with the same indentation.

Question 2

body

Answer 2

The block of statements in a compound statement that follows the header.

Question 3

Boolean algebra

Answer 3

Some rules for rearranging and reasoning about Boolean expressions.
Boolean expression

Question 4

Boolean expression

Answer 4

An expression that is either true or false.

Question 5

Boolean value

Answer 5

There are exactly two Boolean values: True and False. Boolean values result when a Boolean expression is evaluated by the Python interepreter. They have type bool.

Question 6

branch

Answer 6

One of the possible paths of the flow of execution determined by conditional executio

Question 7

chained conditional

Answer 7

A conditional branch with more than two possible flows of execution. In Python chained conditionals are written with if … elif … else statements.

Question 8

comparison operator

Answer 8

One of the six operators that compares two values: ==, !=, >, <, >=, and <=.

Question 9

condition

Answer 9

The Boolean expression in a conditional statement that determines which branch is executed.

Question 10

conditional statement

Answer 10

A statement that controls the flow of execution depending on some condition. In Python the keywords if, elif, and else are used for conditional statements.

Question 11

logical operator

Answer 11

One of the operators that combines Boolean expressions: and, or, and not.

Question 12

nesting

Answer 12

One program structure within another, such as a conditional statement inside a branch of another conditional statement.

Question 13

prompt

Answer 13

A visual cue that tells the user that the system is ready to accept input data.

Question 14

truth table

Answer 14

A concise table of Boolean values that can describe the semantics of an operator.

Question 15

type conversion

Answer 15

An explicit function call that takes a value of one type and computes a corresponding value of another type.

Question 16

wrapping code in a function

Answer 16

The process of adding a function header and parameters to a sequence of program statements is often refered to as “wrapping the code in a function”. This process is very useful whenever the program statements in question are going to be used multiple times. It is even more useful when it allows the programmer to express their mental chunking, and how they’ve broken a complex problem into pieces