App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 450 · 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: colour as the only clue? (a) makes it harder (b) helps everyone
2. 2.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
3. 3.Which of these makes the app harder to use? (a) tiny tap areas (b) captions on videos (c) text that can grow (d) strong colour contrast
4. 4.♿ Accessibility means an app works for ___. (a) nobody (b) only experts (c) everyone (d) only the coder
5. 5.Which of these helps everyone use the app? (a) icons with no labels (b) labels on every icon (c) sudden loud sounds (d) tiny tap areas
6. 6.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 27 px
   Hint: 23 px
   Caption: 13 px (a) Label (b) Caption (c) Hint
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 14 px
   Title: 22 px
   Caption: 25 px
   Menu: 17 px (a) Caption (b) Menu (c) Title (d) Body text
9. 9.🔍 Which is the odd one out? (a) icons with no labels (b) sudden loud sounds (c) captions on videos (d) fast-flashing lights
10. 10.Which of these helps everyone use the app? (a) icons with no labels (b) strong colour contrast (c) sudden loud sounds (d) tiny tap areas
11. 11.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) sudden loud sounds (b) icons with no labels (c) colour as the only clue (d) text that can grow
13. 13.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
14. 14.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) strong colour contrast (d) sudden loud sounds
15. 15.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
16. 16.♿ Why add captions to videos? (a) so anyone can follow (b) to hide the sound (c) to slow them down (d) to add colour
17. 17.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 12 px
    Footer: 15 px
    Menu: 17 px
    Caption: 22 px
    Hint: 14 px
19. 19.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
20. 20.♿ A screen has 10 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
21. 21.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 11 px
    Menu: 13 px
    Body text: 16 px
    Hint: 18 px
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 15 px
    Menu: 18 px
    Body text: 17 px
    Footer: 16 px
24. 24.♿ What does a screen reader do? (a) makes text tiny (b) reads the screen aloud (c) takes photos (d) plays music
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 16 px
    Menu: 23 px
    Caption: 12 px
    Title: 22 px (a) Caption (b) Title (c) Label (d) Menu
26. 26.♿ A screen has 12 icon buttons. Only 10 of them have a text label for screen readers. How many still need a label?
27. 27.🔍 Which is the odd one out? (a) sudden loud sounds (b) big touch targets (c) icons with no labels (d) colour as the only clue
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 12 px
    Footer: 19 px
    Hint: 19 px
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 20 px
    Hint: 10 px
    Label: 21 px (a) Hint (b) Label (c) Title
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 18 px
    Body text: 24 px
    Label: 17 px
    Footer: 10 px
31. 31.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
32. 32.🔍 Which is the odd one out? (a) icons with no labels (b) captions on videos (c) strong colour contrast (d) labels on every icon
33. 33.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
34. 34.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
35. 35.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
36. 36.🔍 Which is the odd one out? (a) strong colour contrast (b) big touch targets (c) captions on videos (d) tiny tap areas
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 27 px
    Title: 20 px
    Menu: 11 px
    Label: 24 px
    Caption: 28 px (a) Menu (b) Footer (c) Label (d) Title
38. 38.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
39. 39.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
40. 40.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a long animation (c) a text label (d) a sound

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