App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 508 · 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.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Hint: 12 px
   Title: 24 px
   Caption: 18 px
   Body text: 22 px
   Footer: 22 px (a) Caption (b) Title (c) Hint (d) Body text
2. 2.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) fast-flashing lights (b) captions on videos (c) labels on every icon (d) strong colour contrast
4. 4.Which of these helps everyone use the app? (a) icons with no labels (b) text that can grow (c) colour as the only clue (d) tiny tap areas
5. 5.Which of these helps everyone use the app? (a) tiny tap areas (b) icons with no labels (c) big touch targets (d) colour as the only clue
6. 6.🔍 Which is the odd one out? (a) icons with no labels (b) tiny tap areas (c) text that can grow (d) sudden loud sounds
7. 7.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) to add colour (d) so anyone can follow
8. 8.🔍 Which is the odd one out? (a) strong colour contrast (b) text that can grow (c) tiny tap areas (d) labels on every icon
9. 9.♿ Accessibility means an app works for ___. (a) only the coder (b) only experts (c) nobody (d) everyone
10. 10.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
11. 11.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 13 px
    Label: 22 px
    Footer: 21 px
    Title: 17 px
    Caption: 24 px (a) Menu (b) Title (c) Footer (d) Label
13. 13.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
14. 14.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the server (c) the battery (d) colour-blind users
15. 15.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
16. 16.♿ A screen has 9 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
17. 17.🔍 Which is the odd one out? (a) sudden loud sounds (b) colour as the only clue (c) strong colour contrast (d) fast-flashing lights
18. 18.🔍 Which is the odd one out? (a) labels on every icon (b) big touch targets (c) captions on videos (d) sudden loud sounds
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 11 px
    Hint: 23 px
    Footer: 17 px
    Title: 13 px
20. 20.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
21. 21.🔍 Which is the odd one out? (a) tiny tap areas (b) fast-flashing lights (c) big touch targets (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?
    Footer: 10 px
    Title: 21 px
    Menu: 19 px
    Caption: 20 px
    Hint: 14 px
23. 23.🔍 Which is the odd one out? (a) sudden loud sounds (b) colour as the only clue (c) fast-flashing lights (d) captions on videos
24. 24.Which of these makes the app harder to use? (a) text that can grow (b) icons with no labels (c) big touch targets (d) labels on every icon
25. 25.♿ What should every icon-only button have for screen readers? (a) a text label (b) a long animation (c) a sound (d) a bright colour
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 16 px
    Body text: 18 px
    Caption: 14 px (a) Caption (b) Menu (c) Body text
27. 27.Which of these helps everyone use the app? (a) captions on videos (b) colour as the only clue (c) icons with no labels (d) sudden loud sounds
28. 28.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 9 px
    Hint: 17 px
    Title: 16 px
    Caption: 19 px (a) Title (b) Hint (c) Body text (d) Caption
30. 30.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
31. 31.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
32. 32.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 20 px
    Label: 12 px
    Caption: 18 px
    Title: 20 px
    Footer: 17 px (a) Title (b) Label (c) Body text (d) Caption
34. 34.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
35. 35.🔍 Which is the odd one out? (a) colour as the only clue (b) labels on every icon (c) text that can grow (d) captions on videos
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 12 px
    Body text: 21 px
    Label: 12 px
    Menu: 18 px
    Footer: 17 px
37. 37.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
38. 38.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 11 px
    Title: 18 px
    Body text: 21 px
    Caption: 22 px
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 20 px
    Label: 11 px
    Hint: 16 px
    Footer: 20 px
    Caption: 18 px (a) Hint (b) Body text (c) Footer (d) Label

Free app development lessons, practice and worksheets at talentjr.in/app-development-for-students