App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 764 · 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.Which of these makes the app harder to use? (a) captions on videos (b) colour as the only clue (c) labels on every icon (d) strong colour contrast
2. 2.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
3. 3.Which of these helps everyone use the app? (a) colour as the only clue (b) fast-flashing lights (c) tiny tap areas (d) labels on every icon
4. 4.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 21 px
   Label: 18 px
   Menu: 22 px
   Hint: 14 px
   Caption: 20 px (a) Title (b) Label (c) Menu (d) Hint
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 24 px
   Label: 18 px
   Caption: 10 px
   Menu: 23 px (a) Label (b) Caption (c) Menu (d) Hint
7. 7.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 20 px
   Label: 14 px
   Menu: 17 px (a) Menu (b) Label (c) Hint
9. 9.♿ A screen has 12 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
10. 10.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
11. 11.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
12. 12.🔍 Which is the odd one out? (a) icons with no labels (b) labels on every icon (c) fast-flashing lights (d) colour as the only clue
13. 13.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
14. 14.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) plays music (d) reads the screen aloud
15. 15.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a long animation (c) a sound (d) a text label
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 28 px
    Label: 14 px
    Caption: 25 px
    Menu: 21 px
    Title: 17 px (a) Label (b) Caption (c) Menu (d) Footer
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 27 px
    Footer: 14 px
    Hint: 28 px
    Body text: 20 px (a) Hint (b) Title (c) Body text (d) Footer
18. 18.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
19. 19.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
20. 20.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
21. 21.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
22. 22.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
23. 23.🔍 Which is the odd one out? (a) tiny tap areas (b) big touch targets (c) icons with no labels (d) fast-flashing lights
24. 24.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
25. 25.♿ Why add captions to videos? (a) so anyone can follow (b) to hide the sound (c) to slow them down (d) to add colour
26. 26.♿ A screen has 8 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
27. 27.♿ A screen has 12 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
28. 28.Which of these helps everyone use the app? (a) tiny tap areas (b) strong colour contrast (c) sudden loud sounds (d) fast-flashing lights
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 20 px
    Title: 22 px
    Footer: 18 px
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 24 px
    Hint: 22 px
    Menu: 19 px
    Title: 17 px
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 25 px
    Title: 9 px
    Hint: 21 px (a) Hint (b) Title (c) Menu
32. 32.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) text that can grow (d) fast-flashing lights
33. 33.🔍 Which is the odd one out? (a) tiny tap areas (b) sudden loud sounds (c) colour as the only clue (d) strong colour contrast
34. 34.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 19 px
    Menu: 13 px
    Title: 27 px (a) Title (b) Menu (c) Caption
36. 36.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
37. 37.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
38. 38.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) tiny tap areas (b) icons with no labels (c) captions on videos (d) sudden loud sounds
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 20 px
    Title: 16 px
    Menu: 21 px
    Label: 14 px

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