App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 596 · 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) strong colour contrast (c) labels on every icon (d) sudden loud sounds
2. 2.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 11 px
   Label: 21 px
   Caption: 26 px (a) Hint (b) Label (c) Caption
4. 4.🔍 Which is the odd one out? (a) tiny tap areas (b) labels on every icon (c) text that can grow (d) strong colour contrast
5. 5.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
6. 6.Which of these helps everyone use the app? (a) tiny tap areas (b) big touch targets (c) icons with no labels (d) colour as the only clue
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 18 px
   Footer: 10 px
   Hint: 16 px
8. 8.♿ A screen has 9 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 17 px
   Footer: 9 px
   Menu: 22 px (a) Footer (b) Menu (c) Title
10. 10.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
11. 11.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
12. 12.♿ Why add captions to videos? (a) to slow them down (b) so anyone can follow (c) to add colour (d) to hide the sound
13. 13.🔍 Which is the odd one out? (a) captions on videos (b) text that can grow (c) sudden loud sounds (d) big touch targets
14. 14.♿ What does a screen reader do? (a) plays music (b) makes text tiny (c) takes photos (d) reads the screen aloud
15. 15.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 23 px
    Hint: 9 px
    Body text: 20 px (a) Body text (b) Caption (c) Hint
17. 17.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) big touch targets (d) colour as the only clue
19. 19.🔍 Which is the odd one out? (a) icons with no labels (b) fast-flashing lights (c) labels on every icon (d) sudden loud sounds
20. 20.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
21. 21.♿ A screen has 11 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 19 px
    Title: 25 px
    Menu: 21 px
    Footer: 20 px
    Caption: 13 px (a) Hint (b) Menu (c) Caption (d) Title
23. 23.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
24. 24.♿ Accessibility means an app works for ___. (a) everyone (b) only experts (c) only the coder (d) nobody
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 17 px
    Hint: 23 px
    Body text: 9 px (a) Hint (b) Body text (c) Title
26. 26.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
27. 27.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) colour-blind users (c) the server (d) fast typists
28. 28.🔍 Which is the odd one out? (a) fast-flashing lights (b) icons with no labels (c) tiny tap areas (d) big touch targets
29. 29.♿ What should every icon-only button have for screen readers? (a) a sound (b) a long animation (c) a bright colour (d) a text label
30. 30.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
31. 31.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
32. 32.🔍 Which is the odd one out? (a) tiny tap areas (b) colour as the only clue (c) captions on videos (d) fast-flashing lights
33. 33.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) strong colour contrast (d) fast-flashing lights
34. 34.Which of these helps everyone use the app? (a) colour as the only clue (b) fast-flashing lights (c) text that can grow (d) tiny tap areas
35. 35.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 19 px
    Title: 11 px
    Menu: 21 px
37. 37.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
38. 38.Which of these makes the app harder to use? (a) text that can grow (b) labels on every icon (c) big touch targets (d) icons with no labels
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 12 px
    Label: 17 px
    Menu: 21 px
    Title: 15 px
    Caption: 14 px
40. 40.Which of these helps everyone use the app? (a) sudden loud sounds (b) captions on videos (c) colour as the only clue (d) tiny tap areas

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