week 7 functions with turtle graphics

Question 1

turtle graphics

Answer 1

python module for learning drawing

Question 1

importing turtle module syntax

Answer 1

import turtle
import random

Question 2

setting up turtle screen

Answer 2

s = turtle.getscreen()

Question 3

setting up turtle object

Answer 3

t = turtle.Turtle()

Question 4

change color of screen

Answer 4

originally black, but can be changed with the following function

s.bgcolor(‘blue’)

Question 5

turtle screen

Answer 5

center is (0,0), like a graph (100 is typically a quarter of the way through)

Question 6

customize turtle

Answer 6

you can customize speed, shape, fill color, pen color, and width

Question 7

customize turtle syntax

Answer 7

t.width(5)

Question 8

function

Answer 8

‘blueprint’ you can call onto later to repeat a chunk of code many times

Question 9

function syntax

Answer 9

def funName():
# function body

Question 10

function call syntax

Answer 10

funName()

Question 11

how do you call a function repeatedly?

Answer 11

with a for loop

Question 12

purpose of a function

Answer 12

improve code readability, reduce redundancy, facilitate modular/incremental programming

Question 13

function parameters

Answer 13

assigns variables that are defined when function is called

basically input arguments and what they are called in terms of the function

Question 14

random.randint()

Answer 14

randomly generates integers between and including two arguments

Question 15

computational thinking

Answer 15

creating series of instructions to solve a problem

Question 16

algorithm

Answer 16

series of instructions that solves a specific problem

Question 17

def keyword

Answer 17

used to define new functions

Question 18

return statement

Answer 18

used so function can return a value (can appear anywhere in function body and can have multiple return statements)

Question 19

None

Answer 19

keyword that means no value, if function doesn’t have return it outputs None

Question 20

arguments

Answer 20

value provided to the function’s parameters during the function call

Question 21

hierarchal/nested function calls

Answer 21

function call inside of a function call
i.e int(input())

Question 22

void function

Answer 22

function that doesn’t return anything

Question 23

polymorphism

Answer 23

using multiplication operator to repeat a section of text/char multiple times in print statement (python only)

Question 24

dynamic typing

Answer 24

determines type of objects as program executes (python)

Question 25

static typing

Answer 25

requires program to declare type and program parameters in the source code (C, C++, Java)

Question 26

modular development

Answer 26

dividing program into separate modules that are individually developed and tested before being integrated into a single program

Question 27

function stub

Answer 27

function definition who’s statements have not yet been written (placeholder)

Question 28

pass function

Answer 28

does nothing and returns nothing, can be used as a placeholder for function body until it’s written