App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 66 · 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. How many texts on this screen are too small?
   Menu: 14 px
   Title: 14 px
   Footer: 17 px
2. 2.Which of these helps everyone use the app? (a) captions on videos (b) sudden loud sounds (c) colour as the only clue (d) fast-flashing lights
3. 3.♿ A screen has 10 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
4. 4.🔍 Which is the odd one out? (a) tiny tap areas (b) sudden loud sounds (c) text that can grow (d) icons with no labels
5. 5.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
6. 6.Which of these makes the app harder to use? (a) labels on every icon (b) colour as the only clue (c) captions on videos (d) big touch targets
7. 7.♿ Why add captions to videos? (a) to slow them down (b) to add colour (c) so anyone can follow (d) to hide the sound
8. 8.♿ A screen has 5 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
9. 9.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 18 px
    Label: 11 px
    Hint: 19 px (a) Hint (b) Caption (c) Label
11. 11.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
12. 12.♿ What does a screen reader do? (a) reads the screen aloud (b) makes text tiny (c) plays music (d) takes photos
13. 13.Which of these helps everyone use the app? (a) fast-flashing lights (b) colour as the only clue (c) big touch targets (d) icons with no labels
14. 14.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 12 px
    Menu: 11 px
    Hint: 13 px
15. 15.♿ What should every icon-only button have for screen readers? (a) a text label (b) a long animation (c) a bright colour (d) a sound
16. 16.♿ A screen has 6 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
17. 17.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
18. 18.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 26 px
    Title: 22 px
    Hint: 13 px
    Label: 28 px
    Body text: 24 px (a) Label (b) Footer (c) Title (d) Hint
20. 20.Which of these helps everyone use the app? (a) sudden loud sounds (b) labels on every icon (c) tiny tap areas (d) colour as the only clue
21. 21.♿ A screen has 12 icon buttons. Only 3 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?
    Body text: 17 px
    Caption: 22 px
    Menu: 13 px
23. 23.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 16 px
    Menu: 9 px
    Body text: 16 px (a) Body text (b) Label (c) Menu
25. 25.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
26. 26.Which of these helps everyone use the app? (a) colour as the only clue (b) strong colour contrast (c) tiny tap areas (d) fast-flashing lights
27. 27.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 24 px
    Body text: 24 px
    Menu: 12 px
    Hint: 24 px (a) Menu (b) Hint (c) Body text (d) Caption
29. 29.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 13 px
    Caption: 17 px
    Hint: 22 px
    Menu: 28 px (a) Caption (b) Hint (c) Menu (d) Label
31. 31.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) captions on videos (d) icons with no labels
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 16 px
    Label: 18 px
    Hint: 23 px
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 23 px
    Hint: 14 px
    Caption: 21 px
    Body text: 24 px
    Menu: 24 px
34. 34.♿ A screen has 11 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 13 px
    Label: 13 px
    Title: 19 px
    Body text: 18 px
    Hint: 21 px
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 18 px
    Footer: 13 px
    Body text: 23 px (a) Footer (b) Title (c) Body text
37. 37.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 19 px
    Menu: 16 px
    Label: 11 px
    Hint: 20 px
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 10 px
    Hint: 13 px
    Footer: 15 px
    Body text: 12 px
40. 40.True or false: “text that can grow” makes the app harder to use. (a) False (b) True

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