App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 369 · 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.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
2. 2.🔍 Which is the odd one out? (a) strong colour contrast (b) text that can grow (c) colour as the only clue (d) big touch targets
3. 3.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) colour-blind users (c) the server (d) fast typists
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 13 px
   Footer: 17 px
   Label: 27 px (a) Footer (b) Title (c) Label
5. 5.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
6. 6.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
7. 7.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 21 px
   Menu: 18 px
   Title: 26 px
   Caption: 22 px
   Hint: 10 px (a) Menu (b) Title (c) Body text (d) Hint
9. 9.♿ Does this help everyone, or make the app harder to use: labels on every icon? (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?
    Body text: 20 px
    Label: 11 px
    Title: 18 px (a) Body text (b) Label (c) Title
11. 11.♿ What does a screen reader do? (a) reads the screen aloud (b) makes text tiny (c) plays music (d) takes photos
12. 12.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a sound (c) a long animation (d) a text label
13. 13.🔍 Which is the odd one out? (a) captions on videos (b) strong colour contrast (c) sudden loud sounds (d) text that can grow
14. 14.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) text that can grow (d) fast-flashing lights
15. 15.Which of these helps everyone use the app? (a) icons with no labels (b) captions on videos (c) sudden loud sounds (d) tiny tap areas
16. 16.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
17. 17.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
18. 18.Which of these makes the app harder to use? (a) strong colour contrast (b) fast-flashing lights (c) captions on videos (d) text that can grow
19. 19.🔍 Which is the odd one out? (a) big touch targets (b) strong colour contrast (c) labels on every icon (d) fast-flashing lights
20. 20.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
21. 21.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
22. 22.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
23. 23.♿ A screen has 11 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
24. 24.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
25. 25.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
26. 26.Which of these helps everyone use the app? (a) fast-flashing lights (b) text that can grow (c) colour as the only clue (d) tiny tap areas
27. 27.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
28. 28.♿ A screen has 9 icon buttons. Only 2 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?
    Menu: 26 px
    Caption: 28 px
    Label: 19 px
    Title: 19 px
    Body text: 10 px (a) Caption (b) Menu (c) Label (d) Body text
30. 30.🔍 Which is the odd one out? (a) big touch targets (b) labels on every icon (c) text that can grow (d) icons with no labels
31. 31.♿ Accessibility means an app works for ___. (a) only the coder (b) nobody (c) everyone (d) only experts
32. 32.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
33. 33.♿ A screen has 10 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 10 px
    Menu: 25 px
    Label: 28 px
    Caption: 25 px (a) Menu (b) Footer (c) Caption (d) Label
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 10 px
    Body text: 18 px
    Caption: 20 px (a) Body text (b) Caption (c) Hint
36. 36.♿ Why add captions to videos? (a) to slow them down (b) so anyone can follow (c) to add colour (d) to hide the sound
37. 37.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) sudden loud sounds (b) strong colour contrast (c) colour as the only clue (d) fast-flashing lights
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 12 px
    Hint: 26 px
    Caption: 23 px (a) Body text (b) Hint (c) Caption
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 18 px
    Footer: 10 px
    Caption: 16 px
    Menu: 16 px (a) Footer (b) Hint (c) Caption (d) Menu

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