App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 400 · 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.♿ What does a screen reader do? (a) reads the screen aloud (b) makes text tiny (c) takes photos (d) plays music
2. 2.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
3. 3.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
4. 4.♿ Accessibility means an app works for ___. (a) only experts (b) nobody (c) only the coder (d) everyone
5. 5.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
6. 6.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
7. 7.♿ Why add captions to videos? (a) to slow them down (b) to add colour (c) to hide the sound (d) so anyone can follow
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 16 px
   Label: 10 px
   Hint: 14 px
9. 9.Which of these makes the app harder to use? (a) captions on videos (b) labels on every icon (c) strong colour contrast (d) tiny tap areas
10. 10.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
11. 11.Which of these makes the app harder to use? (a) big touch targets (b) icons with no labels (c) labels on every icon (d) text that can grow
12. 12.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 22 px
    Label: 17 px
    Menu: 15 px
    Body text: 13 px
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 13 px
    Hint: 18 px
    Label: 23 px
15. 15.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
16. 16.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
17. 17.Which of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) fast-flashing lights (d) text that can grow
18. 18.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 17 px
    Hint: 13 px
    Footer: 18 px
    Title: 18 px
20. 20.♿ What should every icon-only button have for screen readers? (a) a sound (b) a long animation (c) a text label (d) a bright colour
21. 21.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 12 px
    Footer: 17 px
    Body text: 16 px (a) Body text (b) Footer (c) Hint
23. 23.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 13 px
    Title: 22 px
    Menu: 18 px
    Hint: 18 px
24. 24.Which of these helps everyone use the app? (a) icons with no labels (b) big touch targets (c) sudden loud sounds (d) tiny tap areas
25. 25.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
26. 26.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 10 px
    Caption: 19 px
    Title: 19 px (a) Caption (b) Menu (c) Title
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 27 px
    Label: 26 px
    Footer: 13 px
    Hint: 17 px
    Title: 21 px (a) Footer (b) Label (c) Menu (d) Hint
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 24 px
    Caption: 12 px
    Title: 26 px (a) Caption (b) Body text (c) Title
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 23 px
    Menu: 11 px
    Title: 20 px
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 13 px
    Body text: 23 px
    Hint: 26 px
    Label: 23 px (a) Label (b) Hint (c) Caption (d) Body text
32. 32.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 17 px
    Body text: 12 px
    Label: 12 px
    Title: 16 px
    Menu: 17 px
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 21 px
    Hint: 23 px
    Label: 20 px
35. 35.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
36. 36.Which of these makes the app harder to use? (a) text that can grow (b) labels on every icon (c) sudden loud sounds (d) big touch targets
37. 37.Which of these helps everyone use the app? (a) captions on videos (b) colour as the only clue (c) sudden loud sounds (d) icons with no labels
38. 38.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
39. 39.🔍 Which is the odd one out? (a) tiny tap areas (b) captions on videos (c) colour as the only clue (d) icons with no labels
40. 40.🔍 Which is the odd one out? (a) labels on every icon (b) tiny tap areas (c) strong colour contrast (d) captions on videos

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