Robotics

Question 1

1The Arduino function pinMode(9, OUTPUT) sets pin 9 as

Easy

A. an analogue reader B. an input C. a ground D. an output

Question 2

2In an Arduino sketch, the code inside loop() runs

Easy

A. only when a button is pressed B. once, when the board starts C. over and over again while the board has power D. once a day

Question 3

3What path does a robot follow with this program? REPEAT 4 TIMES: move forward 10 cm, turn right 90°

Easy

A. a straight line 40 cm long B. it spins on the spot C. a triangle D. a square

Question 4

4The Arduino command to set pin 13 HIGH is

Easy

A. digitalRead(13, HIGH); B. digitalWrite(13, HIGH); C. analogRead(13); D. pinMode(HIGH, 13);

Question 5

5An interrupt service routine (ISR) should be

Hard

A. full of print statements B. short and fast C. long with delays D. never used

Question 6

6In a flowchart, a decision (a yes/no question) is drawn as a

Easy

A. diamond B. rectangle C. parallelogram D. oval

Question 7

7On an Arduino, what does digitalWrite(13, HIGH) do?

Easy

A. turns off the board B. reads the value of pin 13 C. sets pin 13 as an input D. sets pin 13 to a high voltage (turns it on)

Question 8

8The Arduino function delay(1000) pauses the program for

Easy

A. 0.1 second B. 1,000 seconds C. 1 second D. 1 minute

Question 9

9The Arduino function analogRead() returns a value between

Medium

A. 0 and 1023 B. 0 and 1 C. 0 and 255 D. −1 and 1

Question 10

10In block-based coding (e.g. Scratch), a "forever" block

Easy

A. repeats the enclosed instructions continuously B. runs once C. stops the program D. deletes code