App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 792 · 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 of these makes the app harder to use? (a) strong colour contrast (b) big touch targets (c) captions on videos (d) tiny tap areas
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 14 px
   Title: 17 px
   Caption: 21 px
   Hint: 24 px
   Body text: 15 px
3. 3.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
4. 4.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
5. 5.♿ Why add captions to videos? (a) to slow them down (b) to hide the sound (c) so anyone can follow (d) to add colour
6. 6.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 17 px
   Menu: 11 px
   Hint: 16 px
   Body text: 21 px (a) Title (b) Hint (c) Menu (d) Body text
8. 8.🔍 Which is the odd one out? (a) tiny tap areas (b) labels on every icon (c) big touch targets (d) captions on videos
9. 9.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 18 px
    Label: 13 px
    Menu: 19 px
    Body text: 12 px
    Footer: 19 px
11. 11.♿ A screen has 6 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
12. 12.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) reads the screen aloud (d) plays music
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 12 px
    Title: 19 px
    Hint: 26 px
    Footer: 24 px (a) Body text (b) Footer (c) Hint (d) Title
14. 14.True or false: “fast-flashing lights” helps everyone use the app. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) fast-flashing lights (b) text that can grow (c) big touch targets (d) strong colour contrast
16. 16.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) colour-blind users (d) the server
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 22 px
    Label: 15 px
    Caption: 16 px
18. 18.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
19. 19.♿ Accessibility means an app works for ___. (a) nobody (b) only the coder (c) everyone (d) only experts
20. 20.Which of these helps everyone use the app? (a) icons with no labels (b) fast-flashing lights (c) colour as the only clue (d) big touch targets
21. 21.Which of these makes the app harder to use? (a) strong colour contrast (b) text that can grow (c) labels on every icon (d) icons with no labels
22. 22.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
23. 23.🔍 Which is the odd one out? (a) sudden loud sounds (b) fast-flashing lights (c) tiny tap areas (d) text that can grow
24. 24.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
25. 25.🔍 Which is the odd one out? (a) icons with no labels (b) tiny tap areas (c) fast-flashing lights (d) big touch targets
26. 26.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
27. 27.♿ A screen has 11 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 11 px
    Label: 21 px
    Footer: 18 px
29. 29.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
30. 30.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 19 px
    Menu: 18 px
    Caption: 12 px
    Hint: 15 px
32. 32.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 10 px
    Menu: 26 px
    Title: 18 px
    Hint: 23 px
    Body text: 24 px (a) Hint (b) Title (c) Label (d) Menu
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 18 px
    Caption: 22 px
    Title: 12 px
    Hint: 26 px
    Label: 16 px (a) Caption (b) Hint (c) Footer (d) Title
35. 35.🔍 Which is the odd one out? (a) colour as the only clue (b) captions on videos (c) tiny tap areas (d) icons with no labels
36. 36.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
37. 37.🔍 Which is the odd one out? (a) colour as the only clue (b) labels on every icon (c) text that can grow (d) strong colour contrast
38. 38.♿ A screen has 8 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 11 px
    Caption: 18 px
    Hint: 27 px
    Footer: 17 px (a) Menu (b) Footer (c) Hint (d) Caption
40. 40.Which of these makes the app harder to use? (a) strong colour contrast (b) text that can grow (c) big touch targets (d) sudden loud sounds

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