App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 340 · 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.♿ What should every icon-only button have for screen readers? (a) a text label (b) a sound (c) a long animation (d) a bright colour
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 26 px
   Menu: 14 px
   Title: 25 px
   Hint: 20 px (a) Title (b) Body text (c) Menu (d) Hint
3. 3.Which of these helps everyone use the app? (a) strong colour contrast (b) colour as the only clue (c) fast-flashing lights (d) icons with no labels
4. 4.🔍 Which is the odd one out? (a) strong colour contrast (b) captions on videos (c) text that can grow (d) fast-flashing lights
5. 5.Which of these makes the app harder to use? (a) big touch targets (b) text that can grow (c) colour as the only clue (d) strong colour contrast
6. 6.♿ What does a screen reader do? (a) plays music (b) takes photos (c) makes text tiny (d) reads the screen aloud
7. 7.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 19 px
   Title: 12 px
   Menu: 23 px (a) Menu (b) Body text (c) Title
9. 9.♿ Accessibility means an app works for ___. (a) nobody (b) only experts (c) only the coder (d) everyone
10. 10.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
11. 11.🔍 Which is the odd one out? (a) captions on videos (b) sudden loud sounds (c) labels on every icon (d) text that can grow
12. 12.♿ A screen has 9 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
13. 13.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 9 px
    Label: 28 px
    Body text: 19 px
    Caption: 21 px (a) Caption (b) Body text (c) Footer (d) Label
15. 15.♿ A screen has 10 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
16. 16.Which of these helps everyone use the app? (a) colour as the only clue (b) big touch targets (c) tiny tap areas (d) sudden loud sounds
17. 17.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 21 px
    Footer: 11 px
    Menu: 18 px
    Hint: 18 px
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 16 px
    Hint: 17 px
    Label: 13 px
    Menu: 18 px
    Caption: 13 px
20. 20.🔍 Which is the odd one out? (a) colour as the only clue (b) fast-flashing lights (c) captions on videos (d) icons with no labels
21. 21.Which of these makes the app harder to use? (a) big touch targets (b) text that can grow (c) sudden loud sounds (d) strong colour contrast
22. 22.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 16 px
    Label: 12 px
    Footer: 19 px (a) Caption (b) Footer (c) Label
23. 23.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
24. 24.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 14 px
    Caption: 20 px
    Title: 13 px
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 24 px
    Footer: 19 px
    Body text: 9 px
    Caption: 16 px (a) Footer (b) Body text (c) Caption (d) Title
27. 27.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
28. 28.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
29. 29.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) icons with no labels (b) sudden loud sounds (c) colour as the only clue (d) labels on every icon
31. 31.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
32. 32.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 26 px
    Title: 19 px
    Menu: 12 px (a) Hint (b) Title (c) Menu
34. 34.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
35. 35.Which of these helps everyone use the app? (a) text that can grow (b) tiny tap areas (c) fast-flashing lights (d) colour as the only clue
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 22 px
    Label: 12 px
    Title: 17 px
    Footer: 20 px
    Hint: 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.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 19 px
    Hint: 11 px
    Title: 11 px
    Menu: 14 px
    Footer: 23 px
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 21 px
    Hint: 18 px
    Body text: 13 px
40. 40.Which of these makes the app harder to use? (a) icons with no labels (b) captions on videos (c) strong colour contrast (d) text that can grow

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