App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 761 · 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 of these makes the app harder to use? (a) text that can grow (b) big touch targets (c) tiny tap areas (d) labels on every icon
2. 2.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) to add colour (d) so anyone can follow
3. 3.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
4. 4.♿ What does a screen reader do? (a) plays music (b) takes photos (c) reads the screen aloud (d) makes text tiny
5. 5.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
6. 6.Which of these makes the app harder to use? (a) big touch targets (b) fast-flashing lights (c) captions on videos (d) labels on every icon
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 12 px
   Body text: 11 px
   Label: 15 px
   Title: 10 px
8. 8.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
9. 9.🔍 Which is the odd one out? (a) labels on every icon (b) strong colour contrast (c) big touch targets (d) colour as the only clue
10. 10.♿ Accessibility means an app works for ___. (a) only experts (b) nobody (c) everyone (d) only the coder
11. 11.Which of these makes the app harder to use? (a) colour as the only clue (b) text that can grow (c) big touch targets (d) labels on every icon
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 19 px
    Footer: 20 px
    Label: 9 px
    Menu: 21 px (a) Label (b) Footer (c) Menu (d) Title
13. 13.Which of these helps everyone use the app? (a) text that can grow (b) sudden loud sounds (c) tiny tap areas (d) fast-flashing lights
14. 14.Which of these makes the app harder to use? (a) icons with no labels (b) big touch targets (c) strong colour contrast (d) text that can grow
15. 15.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
16. 16.🔍 Which is the odd one out? (a) labels on every icon (b) strong colour contrast (c) tiny tap areas (d) text that can grow
17. 17.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
18. 18.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 27 px
    Title: 9 px
    Menu: 16 px
    Hint: 21 px
    Label: 27 px (a) Body text (b) Title (c) Menu (d) Hint
20. 20.🔍 Which is the odd one out? (a) strong colour contrast (b) big touch targets (c) labels on every icon (d) sudden loud sounds
21. 21.🔍 Which is the odd one out? (a) fast-flashing lights (b) labels on every icon (c) icons with no labels (d) colour as the only clue
22. 22.🔍 Which is the odd one out? (a) tiny tap areas (b) colour as the only clue (c) icons with no labels (d) big touch targets
23. 23.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
24. 24.Which of these helps everyone use the app? (a) colour as the only clue (b) fast-flashing lights (c) labels on every icon (d) tiny tap areas
25. 25.🔍 Which is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) sudden loud sounds (d) strong colour contrast
26. 26.♿ A screen has 6 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. How many texts on this screen are too small?
    Title: 18 px
    Label: 11 px
    Body text: 15 px
    Footer: 18 px
    Caption: 13 px
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 22 px
    Hint: 28 px
    Title: 20 px
    Body text: 19 px
    Caption: 9 px (a) Title (b) Caption (c) Hint (d) Menu
29. 29.♿ A screen has 11 icon buttons. Only 2 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) strong colour contrast (b) sudden loud sounds (c) labels on every icon (d) big touch targets
31. 31.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
32. 32.🔍 Which is the odd one out? (a) tiny tap areas (b) icons with no labels (c) sudden loud sounds (d) text that can grow
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 15 px
    Body text: 19 px
    Label: 16 px
34. 34.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
35. 35.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
36. 36.♿ A screen has 10 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
37. 37.Which of these helps everyone use the app? (a) fast-flashing lights (b) icons with no labels (c) big touch targets (d) tiny tap areas
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 12 px
    Footer: 24 px
    Body text: 16 px (a) Footer (b) Label (c) Body text
39. 39.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
40. 40.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?

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