App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 118 · 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.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 21 px
   Hint: 17 px
   Caption: 16 px
   Body text: 22 px
3. 3.Which of these helps everyone use the app? (a) icons with no labels (b) fast-flashing lights (c) text that can grow (d) sudden loud sounds
4. 4.Which of these helps everyone use the app? (a) captions on videos (b) tiny tap areas (c) sudden loud sounds (d) colour as the only clue
5. 5.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
6. 6.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
7. 7.🔍 Which is the odd one out? (a) sudden loud sounds (b) fast-flashing lights (c) big touch targets (d) tiny tap areas
8. 8.♿ Why add captions to videos? (a) to hide the sound (b) so anyone can follow (c) to add colour (d) to slow them down
9. 9.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 14 px
    Caption: 22 px
    Footer: 24 px
    Menu: 26 px
    Label: 17 px (a) Menu (b) Footer (c) Caption (d) Body text
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 23 px
    Hint: 15 px
    Label: 10 px
    Footer: 20 px
    Body text: 22 px
12. 12.🔍 Which is the odd one out? (a) captions on videos (b) labels on every icon (c) strong colour contrast (d) colour as the only clue
13. 13.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
14. 14.♿ What should every icon-only button have for screen readers? (a) a sound (b) a long animation (c) a bright colour (d) a text label
15. 15.♿ Accessibility means an app works for ___. (a) only the coder (b) only experts (c) nobody (d) everyone
16. 16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 20 px
    Body text: 12 px
    Menu: 11 px
17. 17.Which of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) captions on videos (d) colour as the only clue
18. 18.Which of these helps everyone use the app? (a) labels on every icon (b) tiny tap areas (c) icons with no labels (d) fast-flashing lights
19. 19.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
20. 20.Which of these helps everyone use the app? (a) sudden loud sounds (b) icons with no labels (c) strong colour contrast (d) tiny tap areas
21. 21.♿ A screen has 9 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 22 px
    Footer: 22 px
    Body text: 10 px
    Menu: 21 px
23. 23.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
24. 24.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
25. 25.♿ What does a screen reader do? (a) plays music (b) takes photos (c) makes text tiny (d) reads the screen aloud
26. 26.♿ A screen has 9 icon buttons. Only 6 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?
    Body text: 18 px
    Caption: 22 px
    Footer: 26 px
    Hint: 20 px
    Title: 12 px (a) Footer (b) Caption (c) Title (d) Body text
28. 28.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 16 px
    Body text: 21 px
    Label: 12 px
    Hint: 21 px
30. 30.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
31. 31.🔍 Which is the odd one out? (a) icons with no labels (b) text that can grow (c) colour as the only clue (d) fast-flashing lights
32. 32.♿ A screen has 12 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 24 px
    Menu: 27 px
    Footer: 13 px (a) Footer (b) Hint (c) Menu
34. 34.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
35. 35.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 22 px
    Caption: 21 px
    Label: 13 px
    Footer: 14 px
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 12 px
    Hint: 24 px
    Body text: 24 px
    Caption: 19 px
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 17 px
    Menu: 23 px
    Title: 22 px
    Body text: 20 px
    Hint: 10 px (a) Title (b) Menu (c) Hint (d) Footer
39. 39.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 19 px
    Label: 23 px
    Menu: 23 px
    Footer: 28 px
    Title: 14 px (a) Label (b) Menu (c) Hint (d) Title

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