App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 860 · 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.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
2. 2.🔍 Which is the odd one out? (a) captions on videos (b) sudden loud sounds (c) big touch targets (d) strong colour contrast
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 13 px
   Title: 18 px
   Hint: 21 px (a) Title (b) Body text (c) Hint
4. 4.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
5. 5.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) fast-flashing lights (d) strong colour contrast
6. 6.♿ What does a screen reader do? (a) plays music (b) takes photos (c) makes text tiny (d) reads the screen aloud
7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 28 px
   Body text: 14 px
   Footer: 27 px (a) Body text (b) Footer (c) Title
8. 8.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
9. 9.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
10. 10.Which of these makes the app harder to use? (a) captions on videos (b) big touch targets (c) strong colour contrast (d) fast-flashing lights
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 28 px
    Body text: 11 px
    Caption: 26 px
    Title: 21 px
    Menu: 24 px (a) Label (b) Body text (c) Title (d) Caption
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 20 px
    Caption: 10 px
    Footer: 19 px
    Label: 17 px (a) Hint (b) Caption (c) Label (d) Footer
13. 13.Which of these helps everyone use the app? (a) strong colour contrast (b) colour as the only clue (c) sudden loud sounds (d) tiny tap areas
14. 14.Which of these helps everyone use the app? (a) tiny tap areas (b) sudden loud sounds (c) fast-flashing lights (d) labels on every icon
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 16 px
    Body text: 14 px
    Title: 24 px (a) Body text (b) Hint (c) Title
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 18 px
    Label: 13 px
    Title: 22 px (a) Label (b) Footer (c) Title
17. 17.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
18. 18.♿ Accessibility means an app works for ___. (a) only the coder (b) only experts (c) nobody (d) everyone
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 18 px
    Menu: 13 px
    Caption: 16 px
    Body text: 17 px (a) Body text (b) Hint (c) Caption (d) Menu
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 14 px
    Footer: 20 px
    Body text: 23 px (a) Footer (b) Body text (c) Title
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 24 px
    Hint: 15 px
    Title: 18 px
    Footer: 13 px
    Caption: 18 px
22. 22.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
23. 23.♿ A screen has 7 icon buttons. Only 6 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?
    Title: 13 px
    Body text: 18 px
    Hint: 25 px
    Footer: 21 px (a) Footer (b) Title (c) Hint (d) Body text
25. 25.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
26. 26.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
27. 27.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
28. 28.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) the battery (c) fast typists (d) the server
29. 29.♿ Why add captions to videos? (a) so anyone can follow (b) to hide the sound (c) to add colour (d) to slow them down
30. 30.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 14 px
    Body text: 23 px
    Hint: 13 px
    Footer: 23 px
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 28 px
    Title: 12 px
    Caption: 18 px
    Footer: 27 px (a) Hint (b) Title (c) Caption (d) Footer
33. 33.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
34. 34.🔍 Which is the odd one out? (a) captions on videos (b) text that can grow (c) tiny tap areas (d) big touch targets
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 19 px
    Footer: 24 px
    Label: 10 px
    Hint: 19 px (a) Footer (b) Label (c) Hint (d) Menu
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 19 px
    Footer: 23 px
    Caption: 13 px (a) Menu (b) Caption (c) Footer
37. 37.🔍 Which is the odd one out? (a) big touch targets (b) icons with no labels (c) tiny tap areas (d) fast-flashing lights
38. 38.🔍 Which is the odd one out? (a) icons with no labels (b) text that can grow (c) tiny tap areas (d) fast-flashing lights
39. 39.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 14 px
    Menu: 13 px
    Hint: 13 px
    Title: 20 px
    Footer: 17 px
40. 40.♿ A screen has 9 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?

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