App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 177 · 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?
   Caption: 15 px
   Menu: 14 px
   Hint: 20 px
   Body text: 18 px
2. 2.♿ A screen has 7 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 20 px
   Footer: 10 px
   Title: 18 px
   Caption: 14 px
   Hint: 12 px
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 18 px
   Title: 20 px
   Hint: 16 px
5. 5.♿ What does a screen reader do? (a) plays music (b) makes text tiny (c) takes photos (d) reads the screen aloud
6. 6.True or false: “sudden loud sounds” makes the app harder to use. (a) False (b) True
7. 7.♿ A screen has 10 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
8. 8.Which of these helps everyone use the app? (a) sudden loud sounds (b) colour as the only clue (c) icons with no labels (d) labels on every icon
9. 9.Which of these makes the app harder to use? (a) text that can grow (b) sudden loud sounds (c) big touch targets (d) captions on videos
10. 10.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
11. 11.♿ Why add captions to videos? (a) so anyone can follow (b) to hide the sound (c) to add colour (d) to slow them down
12. 12.♿ Accessibility means an app works for ___. (a) everyone (b) only the coder (c) nobody (d) only experts
13. 13.🔍 Which is the odd one out? (a) labels on every icon (b) big touch targets (c) strong colour contrast (d) colour as the only clue
14. 14.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) fast typists (c) the battery (d) colour-blind users
15. 15.Which of these helps everyone use the app? (a) fast-flashing lights (b) icons with no labels (c) text that can grow (d) tiny tap areas
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 16 px
    Title: 10 px
    Footer: 19 px
    Label: 19 px
    Body text: 19 px (a) Footer (b) Label (c) Title (d) Caption
17. 17.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
18. 18.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
19. 19.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
20. 20.♿ A screen has 9 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
21. 21.🔍 Which is the odd one out? (a) big touch targets (b) tiny tap areas (c) strong colour contrast (d) text that can grow
22. 22.Which of these helps everyone use the app? (a) sudden loud sounds (b) icons with no labels (c) strong colour contrast (d) colour as the only clue
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 16 px
    Footer: 28 px
    Label: 11 px
    Body text: 28 px
    Hint: 28 px (a) Caption (b) Body text (c) Footer (d) Label
24. 24.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
25. 25.Which of these makes the app harder to use? (a) labels on every icon (b) strong colour contrast (c) tiny tap areas (d) big touch targets
26. 26.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
27. 27.🔍 Which is the odd one out? (a) captions on videos (b) labels on every icon (c) text that can grow (d) icons with no labels
28. 28.🔍 Which is the odd one out? (a) text that can grow (b) icons with no labels (c) sudden loud sounds (d) colour as the only clue
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 17 px
    Hint: 13 px
    Body text: 20 px
30. 30.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
31. 31.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) labels on every icon (d) fast-flashing lights
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 18 px
    Menu: 17 px
    Title: 21 px
    Label: 14 px (a) Menu (b) Caption (c) Title (d) Label
33. 33.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 22 px
    Title: 13 px
    Menu: 18 px
35. 35.🔍 Which is the odd one out? (a) captions on videos (b) sudden loud sounds (c) strong colour contrast (d) text that can grow
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 9 px
    Title: 26 px
    Body text: 27 px
    Menu: 26 px
    Label: 24 px (a) Body text (b) Menu (c) Hint (d) Title
37. 37.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 13 px
    Menu: 24 px
    Body text: 13 px
    Label: 16 px
    Caption: 10 px
39. 39.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
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