Demo Final for Quizizz

This program uses a for loop to make a square with sides 70 pixels long. Which line(s) will cause errors?

• Line 1

• Line 2

• Line 3

• Lines 1 and 3

• Lines 1, 2 and 3

This program uses a loop to create an asterisk with 10 lines. Which line(s) will cause errors?

• Line 1

• Line 2

• Line 4

• Lines 1 and 2

• Lines 1 and 5

Define a function to make a dashed line across the world. There should be 50 pixels between each line. Tracy will start at the left edge of the world. What is wrong with the function?

• You define the function but you never call it

• The : is missing at the end of line 1 - It should be def make_dashed_line():

• You should not have a : at the end of the for loop on line 2

• Lines 3, 4, 5, and 6 should not be indented

Answer explanation

The correct choice highlights that the function definition is missing a colon at the end of line 1. It should be 'def make_dashed_line():'. This is a syntax error that prevents the function from being defined properly.

This program will move to the left side of the world and draw a circle as shown in the image. What command needs to be added to line 1?

• penup()

• erase()

• forward()

• goto(-200,0)

Answer explanation

The command 'penup()' is needed to lift the pen before moving to the left side, preventing any unwanted lines from being drawn. This allows the program to move without drawing until it reaches the desired position to draw the circle.

This program is supposed to make an octagon. Instead, it has 8 short lines in a row. What should be done to fix it?

• remove the 'i' on line 1

• indent the 'left(45)' on line 3

• change 'left(45)' to 'turn(45)'

• remove the indent for 'forward(10)' on line 2

Answer explanation

Indenting 'left(45)' on line 3 ensures that it is executed as part of the loop that draws the octagon. This change will allow the program to turn correctly after each line, forming the desired octagonal shape instead of short lines.

This function is supposed to have Tracy create a filled in pink hexagon. Instead, it only draws the outline. What is the problem?

• The comment should have """ before and """ after it.

• Missing the () on line 6 - it should be end_fill()

• There is no way to fill in shapes in Python

• The function is defined but it is never called.

Answer explanation

The issue is that the function is missing parentheses on line 6. It should be 'end_fill()' to properly fill the shape. Without the parentheses, the fill command is not executed, resulting in only the outline being drawn.

This program draws two lines that are 50 pixels long with 20 pixels between them. Which line(s) will cause errors?

• Line 1

• Line 2

• Line 3

• Line 4

• Line 5

Answer explanation

Line 3 will cause errors because it likely contains incorrect syntax or logic that prevents it from executing properly. The other lines are correctly formatted and should work as intended.

Why do certain words change color in Python?

• To show you that these words can be clicked

• To tell you that these words cannot be used in Python

• To tell Python to skip these words when running the code

• To show that they are recognized as key words

Comments are:

• Only needed when a program is over 50 lines

• Written for humans to read and understand

• Commands performed by the computer

• Always green when Python recognizes them

Answer explanation

Comments are essential for making code understandable to humans, not just for the computer. They help explain the logic and purpose of the code, making it easier for others (or the original author) to read and maintain.

Which of these are valid function names in Python? (Select all the correct answers.)

• 2_circles

• make_2_circles

• 2 circles

• two_circles