App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 622 · 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.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
2. 2.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
3. 3.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 18 px
   Title: 9 px
   Menu: 20 px (a) Title (b) Body text (c) Menu
5. 5.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a bright colour (c) a sound (d) a text label
6. 6.Which of these helps everyone use the app? (a) icons with no labels (b) labels on every icon (c) colour as the only clue (d) tiny tap areas
7. 7.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
8. 8.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
9. 9.♿ What does a screen reader do? (a) plays music (b) makes text tiny (c) reads the screen aloud (d) takes photos
10. 10.♿ A screen has 12 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
11. 11.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
12. 12.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
13. 13.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
14. 14.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 13 px
    Title: 25 px
    Hint: 27 px (a) Hint (b) Title (c) Footer
16. 16.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 11 px
    Caption: 17 px
    Label: 22 px
    Footer: 18 px
    Menu: 23 px
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 17 px
    Caption: 9 px
    Body text: 25 px
    Label: 17 px
    Menu: 28 px (a) Footer (b) Label (c) Caption (d) Body text
19. 19.🔍 Which is the odd one out? (a) big touch targets (b) fast-flashing lights (c) text that can grow (d) labels on every icon
20. 20.♿ A screen has 8 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
21. 21.🔍 Which is the odd one out? (a) big touch targets (b) captions on videos (c) icons with no labels (d) text that can grow
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 10 px
    Hint: 13 px
    Label: 13 px
    Footer: 20 px
    Body text: 24 px
23. 23.🔍 Which is the odd one out? (a) text that can grow (b) strong colour contrast (c) labels on every icon (d) sudden loud sounds
24. 24.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 18 px
    Title: 13 px
    Menu: 26 px
    Caption: 16 px (a) Menu (b) Hint (c) Caption (d) Title
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 12 px
    Footer: 19 px
    Menu: 14 px
    Label: 17 px
27. 27.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
28. 28.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
29. 29.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
30. 30.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
31. 31.Which of these helps everyone use the app? (a) strong colour contrast (b) icons with no labels (c) colour as the only clue (d) tiny tap areas
32. 32.🔍 Which is the odd one out? (a) labels on every icon (b) big touch targets (c) tiny tap areas (d) text that can grow
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 17 px
    Title: 13 px
    Hint: 15 px
    Menu: 12 px
34. 34.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) captions on videos (d) fast-flashing lights
35. 35.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) so anyone can follow (d) to add colour
36. 36.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) labels on every icon (d) colour as the only clue
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 21 px
    Hint: 12 px
    Menu: 28 px (a) Hint (b) Menu (c) Caption
38. 38.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
39. 39.Which of these makes the app harder to use? (a) tiny tap areas (b) labels on every icon (c) strong colour contrast (d) text that can grow
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 20 px
    Caption: 12 px
    Menu: 22 px (a) Caption (b) Label (c) Menu

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