App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 250 · 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.♿ Accessibility means an app works for ___. (a) only the coder (b) nobody (c) everyone (d) only experts
2. 2.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 21 px
   Caption: 11 px
   Hint: 23 px
   Menu: 10 px
4. 4.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
5. 5.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
6. 6.♿ Why add captions to videos? (a) to hide the sound (b) so anyone can follow (c) to slow them down (d) to add colour
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 11 px
   Hint: 24 px
   Label: 23 px (a) Hint (b) Menu (c) Label
8. 8.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) big touch targets (d) icons with no labels
9. 9.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
10. 10.🔍 Which is the odd one out? (a) text that can grow (b) captions on videos (c) labels on every icon (d) colour as the only clue
11. 11.Which of these helps everyone use the app? (a) sudden loud sounds (b) icons with no labels (c) text that can grow (d) fast-flashing lights
12. 12.Which of these makes the app harder to use? (a) icons with no labels (b) labels on every icon (c) big touch targets (d) text that can grow
13. 13.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
14. 14.♿ A screen has 12 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 28 px
    Title: 12 px
    Footer: 23 px
    Caption: 26 px (a) Body text (b) Caption (c) Footer (d) Title
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 12 px
    Footer: 20 px
    Body text: 18 px
    Hint: 17 px
    Title: 22 px
17. 17.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
18. 18.🔍 Which is the odd one out? (a) captions on videos (b) fast-flashing lights (c) big touch targets (d) labels on every icon
19. 19.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
20. 20.Which of these helps everyone use the app? (a) tiny tap areas (b) sudden loud sounds (c) icons with no labels (d) labels on every icon
21. 21.Which of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) text that can grow (d) colour as the only clue
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 10 px
    Caption: 15 px
    Hint: 13 px
    Title: 17 px
    Body text: 24 px
23. 23.Which of these helps everyone use the app? (a) icons with no labels (b) big touch targets (c) colour as the only clue (d) tiny tap areas
24. 24.Which of these makes the app harder to use? (a) fast-flashing lights (b) captions on videos (c) big touch targets (d) text that can grow
25. 25.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
26. 26.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 25 px
    Label: 16 px
    Caption: 13 px
    Footer: 17 px
    Title: 25 px (a) Footer (b) Caption (c) Hint (d) Label
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 13 px
    Menu: 23 px
    Label: 17 px (a) Hint (b) Label (c) Menu
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 17 px
    Footer: 12 px
    Title: 17 px
30. 30.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
31. 31.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 14 px
    Hint: 16 px
    Menu: 27 px (a) Menu (b) Hint (c) Label
33. 33.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
34. 34.🔍 Which is the odd one out? (a) colour as the only clue (b) icons with no labels (c) text that can grow (d) tiny tap areas
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 19 px
    Hint: 9 px
    Footer: 18 px
    Title: 19 px (a) Footer (b) Title (c) Body text (d) Hint
36. 36.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
37. 37.♿ What does a screen reader do? (a) plays music (b) reads the screen aloud (c) takes photos (d) makes text tiny
38. 38.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
39. 39.🔍 Which is the odd one out? (a) icons with no labels (b) big touch targets (c) tiny tap areas (d) colour as the only clue
40. 40.Which of these makes the app harder to use? (a) sudden loud sounds (b) labels on every icon (c) strong colour contrast (d) big touch targets

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