App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 701 · 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.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
2. 2.🔍 Which is the odd one out? (a) labels on every icon (b) big touch targets (c) tiny tap areas (d) captions on videos
3. 3.Which of these helps everyone use the app? (a) fast-flashing lights (b) big touch targets (c) sudden loud sounds (d) tiny tap areas
4. 4.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
5. 5.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 18 px
   Label: 18 px
   Hint: 19 px
   Footer: 28 px
   Body text: 13 px (a) Hint (b) Label (c) Body text (d) Caption
7. 7.🔍 Which is the odd one out? (a) icons with no labels (b) colour as the only clue (c) tiny tap areas (d) captions on videos
8. 8.♿ What does a screen reader do? (a) makes text tiny (b) reads the screen aloud (c) plays music (d) takes photos
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 16 px
   Title: 12 px
   Hint: 20 px
   Label: 24 px
   Footer: 26 px (a) Label (b) Title (c) Body text (d) Hint
10. 10.♿ What should every icon-only button have for screen readers? (a) a sound (b) a text label (c) a long animation (d) a bright colour
11. 11.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 17 px
    Label: 10 px
    Title: 20 px (a) Title (b) Label (c) Body text
13. 13.Which of these makes the app harder to use? (a) big touch targets (b) strong colour contrast (c) labels on every icon (d) sudden loud sounds
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 24 px
    Hint: 24 px
    Title: 20 px
    Label: 10 px
    Menu: 10 px
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 14 px
    Body text: 28 px
    Caption: 19 px (a) Body text (b) Title (c) Caption
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 16 px
    Label: 25 px
    Footer: 14 px (a) Body text (b) Footer (c) Label
17. 17.Which of these helps everyone use the app? (a) icons with no labels (b) tiny tap areas (c) strong colour contrast (d) colour as the only clue
18. 18.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
19. 19.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (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” makes the app harder to use. (a) False (b) True
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 10 px
    Label: 28 px
    Hint: 25 px
    Menu: 23 px (a) Label (b) Menu (c) Hint (d) Body text
23. 23.♿ Why add captions to videos? (a) so anyone can follow (b) to add colour (c) to slow them down (d) to hide the sound
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 22 px
    Footer: 24 px
    Hint: 14 px (a) Footer (b) Hint (c) Menu
25. 25.Which of these makes the app harder to use? (a) big touch targets (b) text that can grow (c) tiny tap areas (d) labels on every icon
26. 26.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
27. 27.Which of these helps everyone use the app? (a) text that can grow (b) colour as the only clue (c) icons with no labels (d) sudden loud sounds
28. 28.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
29. 29.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
30. 30.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 28 px
    Body text: 23 px
    Hint: 12 px (a) Hint (b) Title (c) Body text
32. 32.🔍 Which is the odd one out? (a) fast-flashing lights (b) sudden loud sounds (c) labels on every icon (d) icons with no labels
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 20 px
    Footer: 13 px
    Caption: 21 px
    Menu: 25 px (a) Footer (b) Hint (c) Menu (d) Caption
34. 34.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
35. 35.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
36. 36.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 24 px
    Footer: 11 px
    Hint: 12 px
38. 38.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
39. 39.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
40. 40.♿ Accessibility means an app works for ___. (a) only the coder (b) nobody (c) only experts (d) everyone

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