App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 9 · 40 questions

Developer's tip (Design for everyone): Our rule: text is at least 16 px; every icon has a text label for screen readers. Add captions to videos; never use colour as the only clue. Big touch targets and strong contrast help everyone.

1. 1.♿ Accessibility means an app works for ___. (a) only experts (b) nobody (c) everyone (d) only the coder
2. 2.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
3. 3.🔍 Which is the odd one out? (a) colour as the only clue (b) tiny tap areas (c) captions on videos (d) icons with no labels
4. 4.🔍 Which is the odd one out? (a) captions on videos (b) text that can grow (c) labels on every icon (d) tiny tap areas
5. 5.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 11 px
   Caption: 28 px
   Label: 23 px
   Title: 16 px
   Footer: 16 px (a) Title (b) Caption (c) Menu (d) Label
7. 7.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 12 px
   Title: 20 px
   Label: 23 px
   Hint: 16 px (a) Menu (b) Title (c) Label (d) Hint
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 13 px
   Footer: 19 px
   Caption: 11 px
   Hint: 24 px
   Menu: 14 px
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 12 px
    Body text: 24 px
    Hint: 10 px
11. 11.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
12. 12.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
13. 13.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
14. 14.Which of these makes the app harder to use? (a) strong colour contrast (b) colour as the only clue (c) captions on videos (d) big touch targets
15. 15.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 15 px
    Caption: 19 px
    Label: 17 px
    Body text: 19 px
    Hint: 14 px
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 21 px
    Menu: 13 px
    Title: 26 px
    Label: 19 px (a) Hint (b) Title (c) Label (d) Menu
18. 18.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
19. 19.♿ Why add captions to videos? (a) to add colour (b) so anyone can follow (c) to slow them down (d) to hide the sound
20. 20.♿ A screen has 11 icon buttons. Only 10 of them have a text label for screen readers. How many still need a label?
21. 21.♿ A screen has 9 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 17 px
    Hint: 27 px
    Body text: 16 px
    Footer: 27 px
    Menu: 12 px (a) Body text (b) Hint (c) Menu (d) Caption
23. 23.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
24. 24.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
25. 25.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 19 px
    Hint: 11 px
    Body text: 19 px
    Title: 10 px
    Footer: 20 px
27. 27.♿ What does a screen reader do? (a) reads the screen aloud (b) takes photos (c) plays music (d) makes text tiny
28. 28.🔍 Which is the odd one out? (a) labels on every icon (b) colour as the only clue (c) big touch targets (d) text that can grow
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 23 px
    Hint: 11 px
    Body text: 20 px
    Title: 13 px
    Caption: 14 px
30. 30.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
31. 31.Which of these helps everyone use the app? (a) text that can grow (b) fast-flashing lights (c) colour as the only clue (d) icons with no labels
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 21 px
    Menu: 12 px
    Body text: 20 px
    Label: 19 px
    Hint: 11 px
33. 33.Which of these helps everyone use the app? (a) big touch targets (b) sudden loud sounds (c) colour as the only clue (d) fast-flashing lights
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 16 px
    Title: 14 px
    Caption: 18 px
    Label: 16 px
35. 35.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) captions on videos (d) icons with no labels
36. 36.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 10 px
    Caption: 13 px
    Menu: 11 px
    Body text: 23 px
38. 38.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) colour-blind users (c) fast typists (d) the battery
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 13 px
    Caption: 10 px
    Menu: 17 px
40. 40.Which of these makes the app harder to use? (a) strong colour contrast (b) big touch targets (c) fast-flashing lights (d) labels on every icon

Free app development lessons, practice and worksheets at talentjr.in/app-development-for-students