Escaping Corners Quiz

Which of the following functions is NOT defined in the initial navigation function definitions of the escaping_corners.py script?

• forward()

• left()

• right()

• stop()

What is the purpose of the variable counter in the escaping_corners.py script?

• To store the current speed of the robot.

• To keep track of alternate whisker presses.

• To record the total distance traveled by the robot.

• To control the duration of the robot's movements.

The variables o_w_l and o_w_r are used to store what?

• The desired whisker states.

• The current motor speeds.

• The previous whisker states.

• The number of times the robot has turned.

The outermost "if" statement in the main loop checks if which of the following is true?

• Both whiskers are pressed simultaneously.

• Neither whisker is pressed.

• w_l and w_r are different.

• Both previous whisker states were the same.

When is the counter variable incremented?

• When both whiskers are pressed simultaneously.

• When neither whisker is pressed.

• When both current whisker input states are different from their previous input states.

• Every time the main loop runs.

What happens if the counter exceeds four?

• The robot stops moving.

• The robot moves forward at a faster speed.

• A tone plays, and the robot attempts to escape the corner by moving backward and turning left twice.

• The whisker input values are reset to zero.

Before the robot attempts to escape a corner, what are the values assigned to counter, w_l, and w_r?

• 1, 1, 1

• 5, 0, 0

• 0, 1, 1

• 1, 1, 15

If the condition in the outermost if statement (w_l != w_r) is false, what happens to the counter variable?

• It is incremented.

• It remains unchanged.

• It is reset to 1.

• It is set to 0.

What action does the robot take in the else block at the end of the code, when neither whisker is pressed?

• It moves backwards and turns left.

• It moves backwards and turns right.

• It stops.

• It moves forward.

In the forward() function, which servo is set to a speed of 75?

• bot(19)

• bot(18)

• bot(7)

• bot(9)