Tracy Commands
Karel Commands
Errors
Binary and Decimal
Grab Bag
(2x points)
(2x points)
100
Name a command that is equivalent to right(90)
left(270)
100
How many total times does Karel place a ball?
6
100
What type of error is caused by a misspelled key word?
syntax error
100
How many binary digits are in the decimal number 4
3
100
What three things are required in the comment in front of every function definition.
Description, Precondition, Postcondition
200
What shape will this function draw?
circle(50,360,5)
Pentagon
200
Defining a turn_right() function as three consecutive left turns is an example of which concept? Hint: This concept describes the amount of detail in a given statement.
Decomposition
NOT Abstraction!
200
What type of error might this code cause?
Infinite Loop
200
How many unique values can be represented with 7 binary digits?
128
200
What is the word we use to describe inputs to a function?
Parameter
300
This code is designed to draw a triangle. Identify and fix the logic error
Line 5 should be right(120), not right(60)
300
How many spaces forward from the original spot does Karel end after this code?
3
300
This code is designed to paint the entire row red. Describe what happens when it is run.
The first square is not painted.
300
Which number is greater?
10002 or 910
910. The other number is equivalent to 810
300
What was Python named after?
It's not the snake! It's actually Monty Python, the British comedy series
400
How many lines will be drawn on the screen when this code finishes running?
0
400
What direction will Karel face after this code is run?
East
400
Is a syntax error considered a Compile Time error or a Run Time error?
Compile Time - It happens when the code is compiling, before it starts running.
400
Convert the following number to decimal. Mental math only!
000110102
000110102 = 2610
400
What year was python first introduced? (within 2 years earns half credit)
1991 - The same year Mr. Elman was born