App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 458 · 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) big touch targets (b) fast-flashing lights (c) captions on videos (d) text that can grow
2. 2.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) sudden loud sounds (b) colour as the only clue (c) icons with no labels (d) text that can grow
4. 4.🔍 Which is the odd one out? (a) big touch targets (b) strong colour contrast (c) sudden loud sounds (d) captions on videos
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.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
7. 7.♿ What does a screen reader do? (a) reads the screen aloud (b) takes photos (c) makes text tiny (d) plays music
8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 22 px
   Caption: 12 px
   Title: 15 px
   Hint: 21 px
   Menu: 12 px
9. 9.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) fast typists (c) colour-blind users (d) the battery
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 19 px
    Hint: 24 px
    Menu: 12 px
    Footer: 23 px (a) Title (b) Footer (c) Menu (d) Hint
11. 11.♿ What should every icon-only button have for screen readers? (a) a sound (b) a bright colour (c) a text label (d) a long animation
12. 12.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
13. 13.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
14. 14.♿ A screen has 9 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
15. 15.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 12 px
    Title: 22 px
    Label: 14 px
17. 17.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
18. 18.♿ A screen has 10 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
19. 19.Which of these helps everyone use the app? (a) labels on every icon (b) icons with no labels (c) fast-flashing lights (d) sudden loud sounds
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 21 px
    Label: 10 px
    Title: 22 px
    Hint: 14 px
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 22 px
    Menu: 12 px
    Body text: 16 px
22. 22.🔍 Which is the odd one out? (a) labels on every icon (b) icons with no labels (c) sudden loud sounds (d) fast-flashing lights
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 13 px
    Footer: 26 px
    Menu: 19 px
    Caption: 19 px
    Hint: 16 px (a) Footer (b) Caption (c) Menu (d) Body text
24. 24.Which of these makes the app harder to use? (a) colour as the only clue (b) strong colour contrast (c) labels on every icon (d) big touch targets
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 14 px
    Menu: 18 px
    Caption: 23 px (a) Caption (b) Footer (c) Menu
26. 26.Which of these helps everyone use the app? (a) big touch targets (b) icons with no labels (c) sudden loud sounds (d) fast-flashing lights
27. 27.♿ A screen has 8 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
28. 28.Which of these helps everyone use the app? (a) captions on videos (b) tiny tap areas (c) fast-flashing lights (d) colour as the only clue
29. 29.Which of these makes the app harder to use? (a) captions on videos (b) strong colour contrast (c) text that can grow (d) icons with no labels
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 18 px
    Caption: 10 px
    Footer: 16 px
31. 31.♿ A screen has 8 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
32. 32.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
33. 33.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
34. 34.♿ Why add captions to videos? (a) so anyone can follow (b) to hide the sound (c) to add colour (d) to slow them down
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 22 px
    Body text: 25 px
    Menu: 9 px (a) Body text (b) Title (c) Menu
36. 36.♿ Accessibility means an app works for ___. (a) only the coder (b) only experts (c) everyone (d) nobody
37. 37.Which of these helps everyone use the app? (a) icons with no labels (b) strong colour contrast (c) sudden loud sounds (d) fast-flashing lights
38. 38.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) colour as the only clue (b) tiny tap areas (c) captions on videos (d) sudden loud sounds
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 20 px
    Label: 17 px
    Body text: 20 px
    Title: 11 px (a) Footer (b) Label (c) Body text (d) Title

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