App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 559 · 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 is the odd one out? (a) tiny tap areas (b) sudden loud sounds (c) icons with no labels (d) big touch targets
2. 2.Which of these helps everyone use the app? (a) tiny tap areas (b) big touch targets (c) icons with no labels (d) fast-flashing lights
3. 3.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
4. 4.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) colour-blind users (d) the server
5. 5.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
6. 6.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
7. 7.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
8. 8.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
9. 9.♿ Why add captions to videos? (a) to slow them down (b) to add colour (c) so anyone can follow (d) to hide the sound
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 25 px
    Label: 17 px
    Title: 21 px
    Body text: 23 px
    Hint: 10 px (a) Label (b) Caption (c) Title (d) Hint
11. 11.🔍 Which is the odd one out? (a) labels on every icon (b) big touch targets (c) fast-flashing lights (d) captions on videos
12. 12.Which of these helps everyone use the app? (a) fast-flashing lights (b) icons with no labels (c) sudden loud sounds (d) text that can grow
13. 13.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
14. 14.🔍 Which is the odd one out? (a) captions on videos (b) icons with no labels (c) fast-flashing lights (d) tiny tap areas
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 20 px
    Body text: 11 px
    Footer: 20 px
16. 16.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 16 px
    Menu: 26 px
    Label: 12 px
    Caption: 20 px
    Footer: 28 px (a) Caption (b) Menu (c) Label (d) Title
18. 18.♿ What does a screen reader do? (a) takes photos (b) plays music (c) makes text tiny (d) reads the screen aloud
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 21 px
    Body text: 22 px
    Menu: 21 px
    Label: 12 px (a) Body text (b) Menu (c) Caption (d) Label
20. 20.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
21. 21.Which of these makes the app harder to use? (a) tiny tap areas (b) strong colour contrast (c) big touch targets (d) text that can grow
22. 22.Which of these makes the app harder to use? (a) colour as the only clue (b) strong colour contrast (c) big touch targets (d) text that can grow
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 24 px
    Footer: 13 px
    Menu: 27 px
    Body text: 21 px (a) Body text (b) Menu (c) Footer (d) Caption
24. 24.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
25. 25.♿ What should every icon-only button have for screen readers? (a) a text label (b) a long animation (c) a bright colour (d) a sound
26. 26.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
27. 27.Which of these helps everyone use the app? (a) icons with no labels (b) fast-flashing lights (c) captions on videos (d) tiny tap areas
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 11 px
    Label: 24 px
    Menu: 15 px
29. 29.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
30. 30.♿ A screen has 12 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
31. 31.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
32. 32.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) captions on videos (d) sudden loud sounds
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 23 px
    Caption: 10 px
    Menu: 23 px
    Hint: 22 px (a) Hint (b) Menu (c) Title (d) Caption
34. 34.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
35. 35.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
36. 36.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
37. 37.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 10 px
    Menu: 16 px
    Title: 14 px
    Label: 18 px
39. 39.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
40. 40.♿ A screen has 11 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?

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