← Blink programs and delays lesson New set →

Electronics Worksheet: Blink Programs and Delays

Electronics lesson 23: Blink programs and delays · Set 246 · 40 questions
TalentJR

Remember (ON + OFF = one blink): 1 second = 1000 ms. One blink = ON wait + OFF wait. Blinks = total time in ms ÷ one blink; repeat n times takes n × one round.

NameDateTime takenScore ___ / 40
  1. 1.⏱️ How many milliseconds are in 1 second? (a) 100 (b) 1000 (c) 60 (d) 10
  2. 2.⏱️ repeat 6 times { buzzer ON; wait 600 ms; buzzer OFF; wait 500 ms }
    How many milliseconds does this take in all?
  3. 3.⏱️ What does “wait 500 ms” do? (a) waits 500 seconds (b) pauses for half a second (c) turns the LED off (d) blinks 500 times
  4. 4.⏱️ A program says “wait 7250 ms”. How many seconds is that? =
  5. 5.⏱️ How many milliseconds is a wait of 0.1 seconds?
  6. 6.⏱️ loop forever { LED ON; wait 700 ms; LED OFF; wait 850 ms }
    How many milliseconds does one blink (ON + OFF) take?
  7. 7.⏱️ repeat 6 times { buzzer ON; wait 300 ms; buzzer OFF; wait 200 ms }
    How many milliseconds does this take in all?
  8. 8.⏱️ How many milliseconds is a wait of 2 seconds?
  9. 9.⏱️ How many milliseconds is a wait of 3 seconds?
  10. 10.⏱️ loop forever { LED ON; wait 650 ms; LED OFF; wait 300 ms }
    How many milliseconds does one blink (ON + OFF) take?
  11. 11.⏱️ loop forever { LED ON; wait 950 ms; LED OFF; wait 50 ms }
    How many milliseconds does one blink (ON + OFF) take?
  12. 12.⏱️ loop forever { LED ON; wait 1000 ms; LED OFF; wait 500 ms }
    How many milliseconds does one blink (ON + OFF) take?
  13. 13.⏱️ How many milliseconds is a wait of 2.7 seconds?
  14. 14.⏱️ How many milliseconds is a wait of 1.2 seconds?
  15. 15.⏱️ loop forever { LED ON; wait 200 ms; LED OFF; wait 100 ms }
    How many milliseconds does one blink (ON + OFF) take?
  16. 16.⏱️ loop forever { LED ON; wait 50 ms; LED OFF; wait 200 ms }
    How many times does the LED blink in 5 seconds?
  17. 17.⏱️ loop forever { LED ON; wait 250 ms; LED OFF; wait 700 ms }
    How many milliseconds does one blink (ON + OFF) take?
  18. 18.⏱️ loop forever { LED ON; wait 150 ms; LED OFF; wait 350 ms }
    How many times does the LED blink in 5 seconds?
  19. 19.⏱️ loop forever { LED ON; wait 150 ms; LED OFF; wait 250 ms }
    How many times does the LED blink in 4 seconds?
  20. 20.⏱️ loop forever { LED ON; wait 550 ms; LED OFF; wait 850 ms }
    How many milliseconds does one blink (ON + OFF) take?
  21. 21.⏱️ loop forever { LED ON; wait 50 ms; LED OFF; wait 950 ms }
    How many milliseconds does one blink (ON + OFF) take?
  22. 22.⏱️ repeat 3 times { buzzer ON; wait 700 ms; buzzer OFF; wait 200 ms }
    How many milliseconds does this take in all?
  23. 23.⏱️ loop forever { LED ON; wait 50 ms; LED OFF; wait 350 ms }
    How many times does the LED blink in 4 seconds?
  24. 24.⏱️ repeat 7 times { buzzer ON; wait 400 ms; buzzer OFF; wait 1000 ms }
    How many milliseconds does this take in all?
  25. 25.⏱️ loop forever { LED ON; wait 50 ms; LED OFF; wait 350 ms }
    How many milliseconds does one blink (ON + OFF) take?
  26. 26.⏱️ loop forever { LED ON; wait 750 ms; LED OFF; wait 700 ms }
    How many milliseconds does one blink (ON + OFF) take?
  27. 27.⏱️ loop forever { LED ON; wait 200 ms; LED OFF; wait 400 ms }
    How many milliseconds does one blink (ON + OFF) take?
  28. 28.⏱️ loop forever { LED ON; wait 450 ms; LED OFF; wait 550 ms }
    How many milliseconds does one blink (ON + OFF) take?
  29. 29.⏱️ loop forever { LED ON; wait 150 ms; LED OFF; wait 100 ms }
    How many times does the LED blink in 10 seconds?
  30. 30.⏱️ loop forever { LED ON; wait 650 ms; LED OFF; wait 250 ms }
    How many milliseconds does one blink (ON + OFF) take?
  31. 31.⏱️ A program says “wait 2250 ms”. How many seconds is that? =
  32. 32.⏱️ loop forever { LED ON; wait 150 ms; LED OFF; wait 250 ms }
    How many times does the LED blink in 6 seconds?
  33. 33.⏱️ loop forever { LED ON; wait 500 ms; LED OFF; wait 950 ms }
    How many milliseconds does one blink (ON + OFF) take?
  34. 34.⏱️ repeat 2 times { buzzer ON; wait 900 ms; buzzer OFF; wait 100 ms }
    How many milliseconds does this take in all?
  35. 35.⏱️ repeat 3 times { buzzer ON; wait 100 ms; buzzer OFF; wait 500 ms }
    How many milliseconds does this take in all?
  36. 36.⏱️ How many milliseconds is a wait of 5 seconds?
  37. 37.⏱️ repeat 2 times { buzzer ON; wait 100 ms; buzzer OFF; wait 200 ms }
    How many milliseconds does this take in all?
  38. 38.⏱️ loop forever { LED ON; wait 250 ms; LED OFF; wait 150 ms }
    How many times does the LED blink in 2 seconds?
  39. 39.⏱️ A program says “wait 6250 ms”. How many seconds is that? =
  40. 40.⏱️ loop forever { LED ON; wait 900 ms; LED OFF; wait 900 ms }
    How many milliseconds does one blink (ON + OFF) take?

Answer key

  1. 1000
  2. 6600
  3. pauses for half a second
  4. 7.25
  5. 100
  6. 1550
  7. 3000
  8. 2000
  9. 3000
  10. 950
  11. 1000
  12. 1500
  13. 2700
  14. 1200
  15. 300
  16. 20
  17. 950
  18. 10
  19. 10
  20. 1400
  21. 1000
  22. 2700
  23. 10
  24. 9800
  25. 400
  26. 1450
  27. 600
  28. 1000
  29. 40
  30. 900
  31. 2.25
  32. 15
  33. 1450
  34. 2000
  35. 1800
  36. 5000
  37. 600
  38. 5
  39. 6.25
  40. 1800

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids