App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 582 · 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.🔍 Which is the odd one out? (a) big touch targets (b) icons with no labels (c) captions on videos (d) strong colour contrast
2. 2.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 20 px
   Hint: 26 px
   Caption: 16 px
   Footer: 9 px (a) Hint (b) Footer (c) Caption (d) Label
4. 4.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
5. 5.♿ A screen has 7 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
6. 6.Which of these helps everyone use the app? (a) sudden loud sounds (b) text that can grow (c) colour as the only clue (d) fast-flashing lights
7. 7.Which of these makes the app harder to use? (a) big touch targets (b) text that can grow (c) labels on every icon (d) tiny tap areas
8. 8.♿ Why add captions to videos? (a) to add colour (b) so anyone can follow (c) to slow them down (d) to hide the sound
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 16 px
   Title: 13 px
   Hint: 17 px
   Label: 10 px
   Caption: 10 px
10. 10.🔍 Which is the odd one out? (a) captions on videos (b) strong colour contrast (c) text that can grow (d) tiny tap areas
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 21 px
    Hint: 17 px
    Title: 18 px
    Body text: 12 px
12. 12.♿ A screen has 8 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
13. 13.Which of these makes the app harder to use? (a) big touch targets (b) strong colour contrast (c) fast-flashing lights (d) captions on videos
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 17 px
    Menu: 9 px
    Caption: 16 px
    Title: 27 px
    Footer: 19 px (a) Menu (b) Body text (c) Title (d) Caption
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 13 px
    Title: 22 px
    Caption: 18 px
    Footer: 18 px
    Body text: 23 px (a) Hint (b) Caption (c) Title (d) Footer
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 28 px
    Caption: 13 px
    Body text: 21 px (a) Menu (b) Body text (c) Caption
17. 17.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
18. 18.♿ Accessibility means an app works for ___. (a) only experts (b) nobody (c) only the coder (d) everyone
19. 19.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) fast typists (c) the server (d) the battery
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 13 px
    Label: 24 px
    Title: 16 px
    Body text: 18 px
    Menu: 20 px (a) Body text (b) Title (c) Footer (d) Label
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 28 px
    Footer: 16 px
    Menu: 19 px
    Hint: 27 px
    Caption: 11 px (a) Caption (b) Footer (c) Menu (d) Label
22. 22.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
23. 23.Which of these helps everyone use the app? (a) sudden loud sounds (b) strong colour contrast (c) fast-flashing lights (d) icons with no labels
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 13 px
    Label: 23 px
    Footer: 21 px
25. 25.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
26. 26.♿ What does a screen reader do? (a) plays music (b) takes photos (c) reads the screen aloud (d) makes text tiny
27. 27.♿ A screen has 11 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 20 px
    Footer: 17 px
    Menu: 11 px
    Body text: 28 px
    Label: 22 px (a) Body text (b) Footer (c) Hint (d) Menu
29. 29.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
30. 30.Which of these makes the app harder to use? (a) big touch targets (b) labels on every icon (c) icons with no labels (d) captions on videos
31. 31.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
32. 32.Which of these helps everyone use the app? (a) sudden loud sounds (b) icons with no labels (c) big touch targets (d) tiny tap areas
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 16 px
    Body text: 16 px
    Menu: 13 px (a) Menu (b) Footer (c) Body text
34. 34.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) sudden loud sounds (b) colour as the only clue (c) strong colour contrast (d) icons with no labels
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 14 px
    Title: 18 px
    Caption: 16 px
    Label: 21 px
    Hint: 13 px
37. 37.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
38. 38.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
39. 39.Which of these helps everyone use the app? (a) icons with no labels (b) captions on videos (c) colour as the only clue (d) tiny tap areas
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 23 px
    Footer: 24 px
    Menu: 15 px
    Label: 14 px

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