Python Week 2
True
Built-in functions of the Python Standard Library can be used without being imported.
gray
Equal contributions of the three components in an RGB color results in various shades of what?
True
Full documentation about the Python Standard Library can be found online. True
True
If a filled shape drawn by a turtle is not fully enclosed, Python fills the shape as if the starting point is connected to the end point.
'a'
If a variable called business refers to the string 'Time Warner', what is the result of the expression business[6]?
YodaYodaYoda
If a variable called jedi refers to the string 'Yoda', what is the result of the expression jedi * 3?
19
If a variable called pioneer refers to the string 'Grace Murray Hopper', what is the result of the expression len(pioneer)?
't'
If a variable called son refers to the string 'Justin', what is the result of the expression son[-3]?
False
If both operands to the remainder operator (%) are positive, a divisor of n will produce a result in the range 1 to n.
True
If either or both operands to the division operator (//) are floating-point values, then the result will be a floating-point value.
0.5
If the current value of the variable num1 is 2 and the current value of the variable num2 is 3, what value will be stored in num2 after the following line of code is executed? num2 /= num1 * num2
6
If the current value of the variable size is 2, what value will be stored in size after the following line of code is executed? size *= 3
up and right (northeast)
If the turtle is currently facing up (north), which way would it be facing after executing the command turtle.right(45)?
0 and 1
If the variable num contains a positive integer, what are the only two possible results of the expression num % 2?
False
Python represents a color using the CMYK color model.
True
Setting the turtle's speed to 0 turns off the animation of the turtle movement completely.
hours // 24
Suppose the integer variable hours contains a value that represents a number of hours. Which of the following expressions will compute how many 24-hour periods are represented by that value, without worrying about any leftover hours.
False
Using components from the Python Standard Library is a rare occurrence.
A collection of programming components that can be used in any Python program.
What is the Python Standard Library?
3
What is the result of the expression 43 % 5?
3
What is the result of the expression 7 // 2?
12
What is the result of the expression math.floor(12.843)?
27
What is the result of the expression math.pow(3, 3)?
17
What is the result of the expression max(6, 17)?
A regular string literal cannot span across multiple lines.
What issue must be addressed when printing a long character string?
+
What operator is used to perform string concatenation in Python?
No output. This line would produce an error.
What output does the following code produce? print('Total: ' + 100 + 20)
depth = depth + (50 * offset)
Which line of code is equivalent to the following? depth += 50 * offset
Convert the user input to an integer.
Which of the following does the input function NOT do when it is called?
'#FFFFFF'
Which of the following hex strings represents the color white?
up and left (northwest)
Which way would the turtle be facing after executing the command turtle.setheading(135)?
down and right (southeast)
Which way would the turtle be facing after executing the following code? turtle.setheading(270) turtle.right(20) turtle.left(65)
8
If the current value of the variable count is 2, what value will be stored in count after the following line of code is executed? count += count * 3
6
If the current value of the variable num is 4, what value will be stored in num after the following line of code is executed? num += 2
False
The effect of the setheading depends on the current heading of the turtle.
prompt
What is text that requests user input called?
True
You cannot change the contents of Python character string once it has been created.
False
A turtle draws a filled circle using the fill_circle command.
False
All mathematical functions in Python are part of the math module.
True
The Python turtle graphics module is based on the programming language Logo developed in the 1960s.
False
The expression x ^ y raises the value x to the power y.
False
The goto command moves the turtle without drawing a line.
True
The human eye has three types of color receptors that correspond to wavelengths of red, green, and blue.
True
The input function always returns the read data as a character string.
False
The input function will produce an error if the value read is not numeric.
True
The input, int, and float functions are all built-in functions.
True
The math module contains a constant that represents the value pi to several digits.
True
The math.pi constant represents pi to 15 decimal places.
False
The origin point (0, 0) of the turtle coordinate system is in the upper left corner of the graphic screen.
True
The pen color and size determines the color and width of the lines drawn.
True
The position of a circle depends on the current heading of the turtle.
False
The stroke color of a filled turtle shape must be the same as the fill color.
True
The turtle circle command can be used to draw a regular polygon.
False
The webcolors module is part of the Python Standard Library.