App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 859 · 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.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 17 px
   Label: 21 px
   Hint: 10 px
   Menu: 19 px (a) Label (b) Hint (c) Body text (d) Menu
2. 2.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) reads the screen aloud (d) plays music
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 14 px
   Body text: 24 px
   Title: 14 px
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 11 px
   Footer: 12 px
   Hint: 14 px
   Title: 20 px
5. 5.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
6. 6.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) fast-flashing lights (d) strong colour contrast
7. 7.🔍 Which is the odd one out? (a) fast-flashing lights (b) strong colour contrast (c) icons with no labels (d) sudden loud sounds
8. 8.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) to add colour (d) so anyone can follow
9. 9.♿ What should every icon-only button have for screen readers? (a) a sound (b) a text label (c) a bright colour (d) a long animation
10. 10.🔍 Which is the odd one out? (a) text that can grow (b) sudden loud sounds (c) fast-flashing lights (d) tiny tap areas
11. 11.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) icons with no labels (d) big touch targets
12. 12.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
13. 13.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
14. 14.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
15. 15.Which of these helps everyone use the app? (a) icons with no labels (b) sudden loud sounds (c) labels on every icon (d) fast-flashing lights
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 23 px
    Footer: 28 px
    Body text: 25 px
    Menu: 9 px
    Label: 27 px (a) Footer (b) Title (c) Menu (d) Body text
17. 17.Which of these makes the app harder to use? (a) captions on videos (b) big touch targets (c) tiny tap areas (d) labels on every icon
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 12 px
    Caption: 28 px
    Hint: 25 px (a) Caption (b) Body text (c) Hint
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 13 px
    Caption: 15 px
    Menu: 17 px
    Footer: 16 px
20. 20.Which of these helps everyone use the app? (a) sudden loud sounds (b) icons with no labels (c) strong colour contrast (d) tiny tap areas
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 18 px
    Label: 19 px
    Hint: 24 px
    Menu: 22 px
    Title: 10 px (a) Title (b) Caption (c) Label (d) Hint
22. 22.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
23. 23.🔍 Which is the odd one out? (a) icons with no labels (b) big touch targets (c) colour as the only clue (d) fast-flashing lights
24. 24.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
25. 25.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 20 px
    Title: 11 px
    Body text: 16 px (a) Body text (b) Footer (c) Title
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 28 px
    Hint: 10 px
    Label: 26 px
    Footer: 18 px
    Body text: 21 px (a) Label (b) Caption (c) Footer (d) Hint
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 12 px
    Body text: 19 px
    Label: 24 px
    Footer: 14 px
    Caption: 12 px
29. 29.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
30. 30.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 28 px
    Body text: 24 px
    Label: 9 px
    Footer: 18 px (a) Body text (b) Label (c) Footer (d) Hint
32. 32.Which of these helps everyone use the app? (a) fast-flashing lights (b) big touch targets (c) sudden loud sounds (d) tiny tap areas
33. 33.🔍 Which is the odd one out? (a) sudden loud sounds (b) captions on videos (c) big touch targets (d) text that can grow
34. 34.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
35. 35.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
36. 36.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) colour-blind users (c) the battery (d) fast typists
37. 37.♿ Accessibility means an app works for ___. (a) only the coder (b) only experts (c) everyone (d) nobody
38. 38.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) colour as the only clue (d) labels on every icon
39. 39.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) big touch targets (b) tiny tap areas (c) labels on every icon (d) captions on videos

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