3073 Ch.2
This operator performs division, but instead of returning the quotient it returns the remainder. 1. % 2. * 3. ** 4. /
1. %
This operator performs integer division. 1. // 2. % 3. ** 4. /
1. //
A magic number is: 1. a number that is mathematically undefined 2. an unexplained value that appears in a program's code 3. a number that cannot be divided by 1 4. a number that causes computers to crash
1. a number that is mathematically undefined
Short notes placed in different parts of a program explaining how those parts of the program work are called 1. comments 2. reference manuals 3. tutorials 4. external documentation
1. comments
A ___________is a diagram that graphically depicts the steps that take place in a program. 1. flowchart 2. step chart 3. code graph 4. program graph
1. flowchart
Which built-in function can be used to read input that has been typed on the keyboard? 1. input() 2. get_input() 3. read_input() 4. keyboard()
1. input()
In the expression 12 + 7, the values on the right and left of the + symbol are called . 1. operands 2. operators 3. arguments 4. math expressions
1. operands
A______ is a name that references a value in the computer's memory. 1. variable 2. register 3. RAM slot 4. byte
1. variable
Which of the following statements will cause an error? 1. x = 17 2. 17 = x 3. x = 99999 4. x = '17'
1. x = 17
A(n)___ makes a variable reference a value in the computer's memory. 1. variable declaration 2. assignment statement 3. math expression 4. string literal
2. assignment statement
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? 1. int 2. float 3. currency 4. str
2. float
Which built-in function can be used to convert an int value to a float? 1. int_to_float() 2. float() 3. convert() 4. int()
2. float()
A___ is a name that represents a value that does not change during the program's execution. 1. named literal 2. named constant 3. variable signature 4. key term
2. named constant
An informal language that has no syntax rules and is not meant to be compiled or executed is called 1. faux code 2. pseudocode 3. Python 4. a flowchart
2. pseudocode
A___________ is a single function that the program must perform in order to satisfy the customer 1. task 2. software requirement 3. prerequisite 4. predicate
2. software requirement
A______ is any hypothetical person using a program and providing input for it. 1. designer 2. user 3. guinea pig 4. test subject
2. user
This is an operator that raises a number to a power. 1. % 154 2. * 3. ** 4. /
3. **
A ___________error does not prevent the program from running, but causes it to produce incorrect results. 1. syntax 2. hardware 3. logic 4. fatal
3. logic
A___________is a sequence of characters. 1. char sequence 2. character collection 3. string 4. text block
3. string
This symbol marks the beginning of a comment in Python. 1. & 2. * 3. ** 4. #
4. #
A(n)___________ is a set of well-defined logical steps that must be taken to perform a task. 1. logarithm 2. plan of action 3. logic schedule 4. algorithm
4. algorithm
A___string literal in Python must be enclosed in 1. parentheses. 2. single-quotes. 3. double-quotes. 4. either single-quotes or double-quotes.
4. either single-quotes or double-quotes.
According to the behavior of integer division, when an integer is divided by an integer, the result will be a float.
False
In Python, math expressions are always evaluated from left to right, no matter what the operators are.
False
Python formats all floating-point numbers to two decimal places when outputting with the print statement.False
False
Since a named constant is just a variable, it can change any time during a program's execution.
False
A flowchart is a tool used by programmers to design programs.
True
Comments in Python begin with the # character.
True
Computer programs typically perform three steps: input is received, some process is performed on the input, and output is produced.
True
In Python, print statements written on separate lines do not necessarily output on separate lines.
True
Python allows programmers to break a statement into multiple lines.
True
The \t escape character causes the output to skip over to the next horizontal tab.
True
When using the camelCase naming convention, the first word of the variable name is written in lowercase and the first characters of all subsequent words are written in uppercase.
True