Robotics 2 Unit 3 Practice

What is the purpose of an array in programming?

• Store multiple values of musical notes.

• Execute sequences of maneuvers in robotic applications.

• Represent sequences of maneuvers with arrays of characters.

• Store multiple values in a single variable.

How do you access individual elements in an array?

• Through a loop.

• Using index notation.

• Modifying the provided sketch.

• With character arrays.

What is the purpose of using a switch-case statement in the ControlWithCharacters example sketch?

• To execute maneuver sequences based on numerical values

• To execute maneuver sequences based on characters

• To display different characters on the screen

• To calculate the sum of an array

What concept explains the starting index of arrays in most programming languages?

• One-indexing

• Zero-indexing

• Negative-indexing

• Positive-indexing

Which of the following is a correct way to use the sizeof function?

• To determine the size of the screen

• To calculate the total memory used by the program

• To determine the number of elements in an array

• To resize an array to a smaller size

What is the purpose of using arrays in the context of maneuver sequences?

• To store different types of sensors

• To store maneuver sequences

• To create a list of robot parts

• To log data for analysis

What does the #define directive do in a C/C++ program?

• It includes a standard library.

• It creates a function.

• It defines a macro.

• It declares a variable.

In the setup() function of an Arduino sketch, how many times is the tone() function called if it's not in a loop?

• Never

• Once

• Twice

• Indefinitely

What is the purpose of the delay(1000); command in the setup() function?

• To stop the program

• To delay the program for 1000 milliseconds

• To create a sound for 1000 milliseconds

• To reset the microcontroller

What is the difference between the tone() commands on lines 1 and 3 in the last code snippet?

• The duration of the tone

• The pin to which the speaker is attached

• The frequency of the tone

• There is no difference