App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 574 · 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 should every icon-only button have for screen readers? (a) a long animation (b) a bright colour (c) a sound (d) a text label
2. 2.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
3. 3.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) colour-blind users (c) the server (d) the battery
4. 4.♿ Why add captions to videos? (a) to add colour (b) to hide the sound (c) to slow them down (d) so anyone can follow
5. 5.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
6. 6.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
7. 7.♿ Accessibility means an app works for ___. (a) only experts (b) only the coder (c) nobody (d) everyone
8. 8.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
9. 9.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 13 px
    Footer: 17 px
    Menu: 21 px (a) Footer (b) Title (c) Menu
11. 11.🔍 Which is the odd one out? (a) icons with no labels (b) captions on videos (c) strong colour contrast (d) labels on every icon
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 26 px
    Caption: 16 px
    Label: 23 px
    Hint: 24 px
    Menu: 13 px (a) Caption (b) Label (c) Footer (d) Menu
13. 13.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
14. 14.♿ A screen has 11 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
15. 15.♿ A screen has 10 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
16. 16.🔍 Which is the odd one out? (a) strong colour contrast (b) fast-flashing lights (c) colour as the only clue (d) icons with no labels
17. 17.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
18. 18.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 20 px
    Label: 24 px
    Hint: 10 px
    Footer: 13 px
    Caption: 22 px
20. 20.♿ A screen has 6 icon buttons. Only 4 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) fast-flashing lights (b) labels on every icon (c) strong colour contrast (d) text that can grow
22. 22.Which of these helps everyone use the app? (a) captions on videos (b) icons with no labels (c) sudden loud sounds (d) colour as the only clue
23. 23.Which of these makes the app harder to use? (a) big touch targets (b) text that can grow (c) icons with no labels (d) strong colour contrast
24. 24.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
25. 25.♿ What does a screen reader do? (a) reads the screen aloud (b) plays music (c) takes photos (d) makes text tiny
26. 26.Which of these helps everyone use the app? (a) sudden loud sounds (b) colour as the only clue (c) big touch targets (d) fast-flashing lights
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 20 px
    Hint: 10 px
    Label: 27 px
    Caption: 21 px
    Menu: 18 px (a) Footer (b) Caption (c) Label (d) Hint
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 20 px
    Caption: 14 px
    Menu: 20 px (a) Body text (b) Caption (c) Menu
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 25 px
    Label: 16 px
    Footer: 12 px (a) Hint (b) Footer (c) Label
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 20 px
    Caption: 10 px
    Label: 16 px
    Hint: 24 px
    Footer: 21 px (a) Hint (b) Body text (c) Label (d) Caption
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 26 px
    Footer: 17 px
    Caption: 11 px
    Body text: 27 px (a) Footer (b) Body text (c) Caption (d) Label
32. 32.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
33. 33.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 24 px
    Label: 20 px
    Caption: 16 px
    Body text: 12 px
    Footer: 24 px
35. 35.Which of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) colour as the only clue (d) labels on every icon
36. 36.🔍 Which is the odd one out? (a) colour as the only clue (b) tiny tap areas (c) sudden loud sounds (d) labels on every icon
37. 37.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) colour as the only clue (d) strong colour contrast
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 21 px
    Hint: 17 px
    Menu: 14 px
    Footer: 10 px
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 10 px
    Hint: 20 px
    Body text: 19 px
    Caption: 26 px (a) Hint (b) Body text (c) Caption (d) Title
40. 40.🔍 Which is the odd one out? (a) tiny tap areas (b) colour as the only clue (c) captions on videos (d) sudden loud sounds

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