App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 396 · 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.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
2. 2.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
3. 3.🔍 Which is the odd one out? (a) icons with no labels (b) labels on every icon (c) captions on videos (d) strong colour contrast
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 20 px
   Hint: 16 px
   Title: 22 px
   Caption: 21 px
   Label: 21 px
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 25 px
   Body text: 26 px
   Menu: 13 px
   Caption: 23 px
   Hint: 26 px (a) Caption (b) Menu (c) Title (d) Body text
6. 6.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
7. 7.🔍 Which is the odd one out? (a) labels on every icon (b) fast-flashing lights (c) icons with no labels (d) colour as the only clue
8. 8.♿ A screen has 12 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
9. 9.Which of these helps everyone use the app? (a) big touch targets (b) colour as the only clue (c) tiny tap areas (d) fast-flashing lights
10. 10.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
11. 11.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a sound (c) a text label (d) a bright colour
12. 12.♿ A screen has 11 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
13. 13.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 26 px
    Caption: 21 px
    Menu: 9 px (a) Menu (b) Hint (c) Caption
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 26 px
    Body text: 14 px
    Hint: 23 px
    Menu: 17 px (a) Footer (b) Hint (c) Menu (d) Body text
16. 16.Which of these helps everyone use the app? (a) fast-flashing lights (b) text that can grow (c) sudden loud sounds (d) icons with no labels
17. 17.♿ What does a screen reader do? (a) plays music (b) takes photos (c) makes text tiny (d) reads the screen aloud
18. 18.🔍 Which is the odd one out? (a) big touch targets (b) labels on every icon (c) captions on videos (d) tiny tap areas
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 9 px
    Title: 27 px
    Label: 27 px
    Body text: 25 px (a) Body text (b) Label (c) Caption (d) Title
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 17 px
    Footer: 23 px
    Title: 26 px
    Body text: 12 px (a) Hint (b) Body text (c) Title (d) Footer
21. 21.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
22. 22.♿ A screen has 12 icon buttons. Only 11 of them have a text label for screen readers. How many still need a label?
23. 23.Which of these helps everyone use the app? (a) sudden loud sounds (b) labels on every icon (c) icons with no labels (d) colour as the only clue
24. 24.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 13 px
    Hint: 21 px
    Title: 18 px
26. 26.Which of these makes the app harder to use? (a) icons with no labels (b) strong colour contrast (c) big touch targets (d) labels on every icon
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 22 px
    Menu: 15 px
    Caption: 15 px
    Body text: 12 px
28. 28.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
29. 29.♿ Why add captions to videos? (a) to slow them down (b) to add colour (c) to hide the sound (d) so anyone can follow
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 19 px
    Caption: 19 px
    Body text: 21 px
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 22 px
    Title: 24 px
    Hint: 16 px
    Label: 20 px
    Caption: 9 px (a) Title (b) Hint (c) Caption (d) Menu
32. 32.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
33. 33.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
34. 34.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
35. 35.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 28 px
    Caption: 11 px
    Hint: 22 px (a) Footer (b) Caption (c) Hint
37. 37.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
38. 38.Which of these makes the app harder to use? (a) text that can grow (b) captions on videos (c) sudden loud sounds (d) big touch targets
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 18 px
    Menu: 27 px
    Body text: 13 px (a) Body text (b) Menu (c) Caption
40. 40.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True

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