ThinkPython Basic

Question 1

Operator

Answer 1

Special symbols that represent computations like addition and multiplication.

Question 2

Division

Answer 2

/

Question 3

Multiplication

Answer 3

*

Question 4

Exponentiation (raises number to a power)

Answer 4

**

Question 5

Types of values

Answer 5

integer
floating point number
string

Question 6

Interpreter

Answer 6

A program that reads another program and executes it

Question 7

Integer

Answer 7

Type that represents whole numbers

Question 8

floating-point

Answer 8

Type that represents numbers with fractional parts.

Question 9

String

Answer 9

Type that represents a sequence of characters

Question 10

Variable

Answer 10

A name that refers to a value.

Question 11

Assignment statement

Answer 11

Creates a new variable and gives it a value.

Question 12

State diagram

Answer 12

A way to represent variables on paper by drawing an arrow from a variable to its value. It shows the state of each variable.

Question 13

Keyword

Answer 13

Used by the interpreter to recognize the structure of the program, they cannot be used as variable names.

Question 14

Expression

Answer 14

A combination of values, variables, and operators.

*Values and variables are considered expressions by themselves.

Question 15

Evaluate

Answer 15

The interpreter does this to find the value of an expression given in the prompt.

Question 16

Statement

Answer 16

A unit of code that has an effect, like creating a variable or displaying a value.

Question 17

Execute

Answer 17

The interpreter does what the statement says.

Question 18

Script

Answer 18

1. A program stored in a file.
2. A file of saved code that can be run by the interpreter.
   * Running in interactive mode is useful for testing bits of code before putting them into a script.

Question 19

Order of operations

Answer 19

PEMDAS
The order of evaluation. Parentheses, Exponentiation, multiplication, division, addition, subtraction

*Operators with the same precedence are evaluated from left to right, except exponentiation.

Question 20

String concatenation

Answer 20

Join strings by linking them end-to-end, using the + operator. To perform repetition, use *. If one of the values is a string, must use an integer.

*Performing mathematical operations on strings is illegal.

Question 21

Comments in Python

Answer 21

# A single line
""" An entire chunk

Question 22

Operand

Answer 22

One of the values on which an operator operates.