App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 437 · 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 is the odd one out? (a) strong colour contrast (b) tiny tap areas (c) text that can grow (d) captions on videos
2. 2.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
3. 3.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 17 px
   Menu: 15 px
   Label: 17 px
   Hint: 24 px
5. 5.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 11 px
   Footer: 12 px
   Label: 23 px
   Caption: 11 px
   Title: 22 px
6. 6.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 13 px
   Caption: 20 px
   Title: 14 px
   Footer: 13 px
7. 7.Which of these makes the app harder to use? (a) text that can grow (b) strong colour contrast (c) big touch targets (d) fast-flashing lights
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 23 px
   Footer: 17 px
   Menu: 11 px
   Caption: 19 px
   Title: 24 px (a) Body text (b) Caption (c) Menu (d) Footer
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.♿ 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.Which of these makes the app harder to use? (a) big touch targets (b) text that can grow (c) tiny tap areas (d) strong colour contrast
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 28 px
    Menu: 9 px
    Caption: 22 px (a) Body text (b) Caption (c) Menu
13. 13.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
14. 14.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
15. 15.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
16. 16.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
17. 17.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
18. 18.♿ Why add captions to videos? (a) so anyone can follow (b) to hide the sound (c) to slow them down (d) to add colour
19. 19.♿ A screen has 11 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 15 px
    Hint: 20 px
    Title: 12 px
21. 21.Which of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) big touch targets (d) colour as the only clue
22. 22.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 24 px
    Caption: 17 px
    Title: 9 px (a) Caption (b) Hint (c) Title
24. 24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 24 px
    Title: 16 px
    Hint: 14 px
    Label: 12 px
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) fast-flashing lights (b) icons with no labels (c) tiny tap areas (d) text that can grow
27. 27.🔍 Which is the odd one out? (a) colour as the only clue (b) icons with no labels (c) captions on videos (d) sudden loud sounds
28. 28.🔍 Which is the odd one out? (a) labels on every icon (b) icons with no labels (c) big touch targets (d) text that can grow
29. 29.♿ What does a screen reader do? (a) plays music (b) makes text tiny (c) reads the screen aloud (d) takes photos
30. 30.♿ Accessibility means an app works for ___. (a) only experts (b) everyone (c) only the coder (d) nobody
31. 31.Which of these helps everyone use the app? (a) icons with no labels (b) sudden loud sounds (c) tiny tap areas (d) big touch targets
32. 32.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
33. 33.🔍 Which is the odd one out? (a) sudden loud sounds (b) icons with no labels (c) text that can grow (d) tiny tap areas
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 12 px
    Title: 20 px
    Hint: 24 px (a) Title (b) Hint (c) Caption
35. 35.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 26 px
    Hint: 27 px
    Title: 12 px (a) Hint (b) Title (c) Footer
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 17 px
    Caption: 24 px
    Hint: 10 px
    Body text: 18 px
    Label: 17 px (a) Hint (b) Caption (c) Body text (d) Title
38. 38.Which of these helps everyone use the app? (a) icons with no labels (b) colour as the only clue (c) labels on every icon (d) tiny tap areas
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 19 px
    Label: 12 px
    Caption: 25 px
    Title: 18 px
    Menu: 24 px (a) Caption (b) Label (c) Body text (d) Title
40. 40.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True

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