App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 416 · 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) captions on videos (c) labels on every icon (d) tiny tap areas
2. 2.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
3. 3.🔍 Which is the odd one out? (a) labels on every icon (b) strong colour contrast (c) fast-flashing lights (d) text that can grow
4. 4.🔍 Which is the odd one out? (a) tiny tap areas (b) colour as the only clue (c) text that can grow (d) sudden loud sounds
5. 5.♿ A screen has 10 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 17 px
   Menu: 15 px
   Hint: 13 px
   Caption: 13 px
   Title: 19 px
7. 7.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
8. 8.♿ Accessibility means an app works for ___. (a) only the coder (b) only experts (c) everyone (d) nobody
9. 9.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 17 px
    Label: 11 px
    Title: 25 px
    Menu: 16 px
    Footer: 22 px (a) Body text (b) Label (c) Menu (d) Title
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 18 px
    Footer: 22 px
    Hint: 11 px
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 23 px
    Hint: 14 px
    Body text: 23 px (a) Body text (b) Menu (c) Hint
13. 13.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 17 px
    Title: 24 px
    Hint: 12 px
    Label: 18 px (a) Hint (b) Label (c) Menu (d) Title
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 24 px
    Label: 22 px
    Caption: 23 px
    Title: 12 px (a) Label (b) Caption (c) Footer (d) Title
16. 16.♿ A screen has 11 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
17. 17.Which of these helps everyone use the app? (a) fast-flashing lights (b) big touch targets (c) sudden loud sounds (d) icons with no labels
18. 18.Which of these makes the app harder to use? (a) big touch targets (b) strong colour contrast (c) text that can grow (d) fast-flashing lights
19. 19.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
20. 20.Which of these helps everyone use the app? (a) icons with no labels (b) colour as the only clue (c) tiny tap areas (d) strong colour contrast
21. 21.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 21 px
    Hint: 17 px
    Footer: 17 px
    Title: 10 px
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 20 px
    Footer: 28 px
    Title: 11 px (a) Footer (b) Label (c) Title
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 11 px
    Title: 21 px
    Menu: 14 px
    Footer: 20 px
25. 25.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 11 px
    Label: 15 px
    Title: 14 px
27. 27.♿ A screen has 10 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
28. 28.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
29. 29.Which of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) icons with no labels (d) big touch targets
30. 30.♿ What should every icon-only button have for screen readers? (a) a text label (b) a bright colour (c) a long animation (d) a sound
31. 31.♿ What does a screen reader do? (a) plays music (b) makes text tiny (c) reads the screen aloud (d) takes photos
32. 32.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 23 px
    Hint: 15 px
    Footer: 14 px
    Title: 24 px
34. 34.🔍 Which is the odd one out? (a) text that can grow (b) tiny tap areas (c) big touch targets (d) strong colour contrast
35. 35.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 16 px
    Hint: 13 px
    Footer: 24 px
    Title: 20 px
    Body text: 12 px
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 23 px
    Hint: 14 px
    Body text: 15 px
    Title: 19 px
38. 38.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) to add colour (d) so anyone can follow
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 11 px
    Title: 11 px
    Caption: 16 px
    Footer: 15 px
    Label: 17 px
40. 40.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False

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