Programming with Karel Quiz

Which of the following commands is a valid Karel command?

• move

• move ();

• move()

• move()

Which of the following is the correct way to define a turnRight function in Karel? (The commands are run together so just make sure the brackets, parenthesis, and semi-colon are correct.)

• function turnRight() { turnLeft(); turnLeft(); turnLeft(); }

• function turnRight() { turnRight(); turnRight(); turnRight(); }

• function turnRight { turnleft(); turnleft(); turnLeft(); }

• turnRight function() { turnleft(); turnleft(); turnLeft(); }

Why do we use functions in Karel programs?

• Break down our program into smaller parts

• Avoid repeating code

• Make our program more readable

• All of the above

If Karel starts at Row 1 and Column 1, facing East, where will Karel be, and what direction will Karel be facing after running the following code? (Assume the world is 10x10 in size) move(); turnLeft(); putBall(); turnLeft(); turnLeft(); turnLeft(); move(); turnLeft();

• Row 3, Column 1, Facing North

• Row 1, Column 4, Facing North

• Row 1, Column 3, Facing South

• Row 1, Column 3, Facing North

Karel starts at Row 1 and Column 1, facing East. After calling the stairStep function twice, where will Karel be and what direction will Karel be facing? (assume this is a SuperKarel program and the world is 10x10 in size)

• Row 2, Column 2, Facing North

• Row 3, Column 3, Facing East

• Row 3, Column 3, Facing West

• Row 4, Column 4, Facing East

In this code, how many times is the dance function called and how many times is it defined?
function main() {
move();
dance();

move();
turnLeft();
dance();

dance();

• Called 1 time, defined 1 time

• Called 1 time, defined 3 times

• Called 3 times, defined 1 time

• Called 3 times, defined 3 times

What's wrong with this code?

function main() {

move();

go();

go();

}

function go() {

move();

move();

}

function go() {

move();

move();

}

main();

• The go function is called twice

• The go function has a syntax error

• The go function has been defined twice

• go is not a command that Karel understands

How many total times will Karel move in this program?
function main() {

move();
for (let i = 0; i < 5; i++) {

move();
putBall();
}
}
main();

• 1

• 5

• 6

• 7

What is wrong with this for loop? for (let i = 0; i < 10, i + 1) { move(); } I. The for loop uses commas instead of semicolons II. It should say i++ instead of i + 1

• I

• II

• I and II

• The for loop is correct

What is the proper format for a single line comment in Karel?

• # This is a comment

• // This is a comment

• /* This is a comment

• This is a comment