App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 248 · 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.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
2. 2.♿ A screen has 12 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
3. 3.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
4. 4.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
5. 5.♿ Accessibility means an app works for ___. (a) only experts (b) nobody (c) only the coder (d) everyone
6. 6.♿ What does a screen reader do? (a) plays music (b) reads the screen aloud (c) makes text tiny (d) takes photos
7. 7.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
8. 8.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
9. 9.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) tiny tap areas (b) fast-flashing lights (c) labels on every icon (d) icons with no labels
11. 11.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) tiny tap areas (d) labels on every icon
12. 12.♿ Why add captions to videos? (a) to slow them down (b) to add colour (c) so anyone can follow (d) to hide the sound
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 16 px
    Hint: 10 px
    Footer: 21 px
    Caption: 20 px
    Title: 28 px (a) Caption (b) Body text (c) Hint (d) Footer
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 11 px
    Body text: 11 px
    Menu: 12 px
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 17 px
    Caption: 11 px
    Hint: 19 px
    Footer: 11 px
    Label: 12 px
16. 16.🔍 Which is the odd one out? (a) big touch targets (b) sudden loud sounds (c) labels on every icon (d) strong colour contrast
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 12 px
    Title: 25 px
    Label: 28 px (a) Label (b) Title (c) Body text
18. 18.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
19. 19.♿ 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
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 10 px
    Body text: 20 px
    Title: 23 px
21. 21.Which of these helps everyone use the app? (a) captions on videos (b) sudden loud sounds (c) icons with no labels (d) tiny tap areas
22. 22.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
23. 23.🔍 Which is the odd one out? (a) icons with no labels (b) strong colour contrast (c) tiny tap areas (d) sudden loud sounds
24. 24.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
25. 25.Which of these makes the app harder to use? (a) text that can grow (b) strong colour contrast (c) fast-flashing lights (d) big touch targets
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 10 px
    Title: 12 px
    Caption: 16 px
    Footer: 18 px
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 24 px
    Menu: 9 px
    Body text: 23 px (a) Menu (b) Body text (c) Hint
28. 28.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
29. 29.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 15 px
    Body text: 18 px
    Hint: 10 px
31. 31.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) colour-blind users (c) fast typists (d) the battery
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 22 px
    Title: 16 px
    Body text: 18 px
    Label: 13 px (a) Label (b) Title (c) Body text (d) Hint
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 12 px
    Hint: 19 px
    Title: 19 px (a) Hint (b) Title (c) Caption
34. 34.♿ A screen has 9 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
35. 35.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 24 px
    Hint: 16 px
    Body text: 14 px
    Label: 17 px
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 24 px
    Hint: 18 px
    Title: 19 px
    Menu: 14 px
    Body text: 24 px (a) Hint (b) Menu (c) Footer (d) Title
38. 38.Which of these helps everyone use the app? (a) icons with no labels (b) labels on every icon (c) colour as the only clue (d) tiny tap areas
39. 39.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 16 px
    Body text: 13 px
    Title: 11 px
    Menu: 10 px
    Caption: 11 px

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