App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 320 · 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.♿ Why add captions to videos? (a) to add colour (b) to slow them down (c) to hide the sound (d) so anyone can follow
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 18 px
   Label: 26 px
   Caption: 18 px
   Body text: 12 px
   Hint: 18 px (a) Caption (b) Title (c) Body text (d) Label
3. 3.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
4. 4.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
5. 5.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Label: 23 px
   Caption: 21 px
   Menu: 16 px
   Body text: 17 px
   Title: 10 px
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 24 px
   Label: 25 px
   Caption: 13 px (a) Hint (b) Caption (c) Label
7. 7.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
8. 8.♿ Accessibility means an app works for ___. (a) only the coder (b) only experts (c) everyone (d) nobody
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 10 px
   Body text: 16 px
   Menu: 13 px
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 14 px
    Body text: 10 px
    Menu: 14 px
    Title: 10 px
    Label: 16 px
11. 11.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
12. 12.Which of these makes the app harder to use? (a) icons with no labels (b) strong colour contrast (c) labels on every icon (d) big touch targets
13. 13.🔍 Which is the odd one out? (a) labels on every icon (b) sudden loud sounds (c) colour as the only clue (d) icons with no labels
14. 14.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) reads the screen aloud (d) plays music
15. 15.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
16. 16.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
17. 17.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
18. 18.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) labels on every icon (d) fast-flashing lights
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 20 px
    Title: 14 px
    Body text: 11 px
    Hint: 20 px
    Label: 20 px
20. 20.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) icons with no labels (d) strong colour contrast
21. 21.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
22. 22.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
23. 23.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 20 px
    Title: 13 px
    Menu: 21 px
    Caption: 19 px
    Footer: 16 px (a) Menu (b) Caption (c) Body text (d) Title
25. 25.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 13 px
    Caption: 28 px
    Body text: 18 px (a) Label (b) Body text (c) Caption
26. 26.🔍 Which is the odd one out? (a) tiny tap areas (b) strong colour contrast (c) colour as the only clue (d) icons with no labels
27. 27.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 20 px
    Body text: 17 px
    Hint: 10 px
    Caption: 18 px
    Menu: 20 px
29. 29.🔍 Which is the odd one out? (a) icons with no labels (b) text that can grow (c) fast-flashing lights (d) tiny tap areas
30. 30.🔍 Which is the odd one out? (a) tiny tap areas (b) captions on videos (c) colour as the only clue (d) fast-flashing lights
31. 31.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 13 px
    Caption: 12 px
    Body text: 11 px
    Title: 17 px
    Menu: 20 px
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 19 px
    Hint: 11 px
    Label: 11 px
    Body text: 23 px
    Caption: 12 px
34. 34.Which of these makes the app harder to use? (a) text that can grow (b) strong colour contrast (c) captions on videos (d) fast-flashing lights
35. 35.🔍 Which is the odd one out? (a) labels on every icon (b) icons with no labels (c) captions on videos (d) strong colour contrast
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 18 px
    Label: 18 px
    Footer: 11 px
    Menu: 19 px
    Hint: 22 px (a) Menu (b) Label (c) Title (d) Footer
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 24 px
    Caption: 28 px
    Title: 13 px
    Footer: 24 px
    Body text: 19 px (a) Footer (b) Label (c) Caption (d) Title
38. 38.♿ A screen has 8 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 20 px
    Menu: 20 px
    Hint: 28 px
    Body text: 13 px
    Title: 27 px (a) Body text (b) Menu (c) Hint (d) Caption
40. 40.Which of these helps everyone use the app? (a) sudden loud sounds (b) tiny tap areas (c) labels on every icon (d) fast-flashing lights

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