Chapter 2

Question 1

A ______ error does not prevent the program from running, but causes it to produce incorrect results.

Answer 1

Logic

Question 2

A ______ is a single function that the program must perform in order to satisfy the customer.

Answer 2

Task

Question 3

A _______ is a set of well-defined logical steps that must be taken to perform a task.

Answer 3

Algorithm

Question 4

An informal language that has no syntax rules and is not meant to be compiled or executed is called _______.

Answer 4

Pseudocode

Question 5

A _____ is a diagram that graphically depicts the steps that take place in a program.

Answer 5

Flowchart

Question 6

A ______ is a sequence of characters.

Answer 6

String

Question 7

A ______ is a name that references a value in the computer’s memory.

Answer 7

Variable

Question 8

A _______ is any hypothetical person using a program providing input for it.

Answer 8

User

Question 9

A string literal in Python must be enclosed by _______.

Answer 9

Either a single quote or double quote

Question 10

Short notes places in different parts of a program explaining how those parts of the program work are called _________.

Answer 10

Comments

Question 11

A(n) _____ makes a variable reference a value in the computer’s memory.

Answer 11

Assignment statement

Question 12

This symbol marks the beginning of a common it Python.

Answer 12

#

Question 13

In the expression 12+7, the values on the right and left of the symbol are called ________.

Answer 13

Operands

Question 14

This operator performs integer division.

Answer 14

//

Question 15

This is an operator that raises a number to a power.

Answer 15

**

Question 16

This operator performs division, but instead of returning the quotient it returns the remainder.

Answer 16

%

Question 17

Suppose the following statement is in a program: price = 99.0. After this statement executes, the price variable will reference a value of which data type?

Answer 17

Float

Question 18

Which built-in function can be used to read input that has been typed on the keyboard?

Answer 18

input()

Question 19

Which built-in function can be used to convert an int value to a float?

Answer 19

int()

Question 20

A magic number is _____________.

Answer 20

An unexplained value that appears in a program’s code.

Question 21

A _________ is a name that represents a value that does not change during the programs’s execution.

Answer 21

Named constant

Question 22

True or false?

Programmers must be careful to not make syntax errors when writing pseudocode.

Answer 22

False

Question 23

In a math expression, multiplication and division take place before addition and subtraction.

Answer 23

True

Question 24

Variable names can have spaces in them.

Answer 24

False

Question 25

In Python, the first character of a variable cannot be a number.

Answer 25

True

Question 26

If you print a variable that has not been assigned a value, the number 0 will be displayed.

Answer 26

False