App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 166 · 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: 21 px
   Hint: 19 px
   Footer: 20 px
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 14 px
   Label: 17 px
   Body text: 16 px
   Footer: 24 px (a) Footer (b) Menu (c) Label (d) Body text
3. 3.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
4. 4.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Label: 21 px
   Menu: 10 px
   Title: 16 px
   Caption: 18 px (a) Title (b) Caption (c) Label (d) Menu
6. 6.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
7. 7.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
8. 8.Which of these makes the app harder to use? (a) captions on videos (b) strong colour contrast (c) sudden loud sounds (d) text that can grow
9. 9.🔍 Which is the odd one out? (a) icons with no labels (b) sudden loud sounds (c) colour as the only clue (d) labels on every icon
10. 10.🔍 Which is the odd one out? (a) big touch targets (b) sudden loud sounds (c) colour as the only clue (d) fast-flashing lights
11. 11.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
12. 12.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 16 px
    Title: 24 px
    Footer: 18 px
13. 13.🔍 Which is the odd one out? (a) icons with no labels (b) big touch targets (c) text that can grow (d) labels on every icon
14. 14.♿ A screen has 7 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 19 px
    Label: 11 px
    Hint: 27 px
    Title: 17 px (a) Menu (b) Hint (c) Label (d) Title
16. 16.Which of these helps everyone use the app? (a) sudden loud sounds (b) icons with no labels (c) fast-flashing lights (d) labels on every icon
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 9 px
    Hint: 24 px
    Title: 19 px
    Menu: 23 px
    Label: 17 px (a) Hint (b) Title (c) Menu (d) Footer
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 20 px
    Footer: 15 px
    Menu: 22 px
    Hint: 13 px
19. 19.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) plays music (d) reads the screen aloud
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 11 px
    Label: 16 px
    Footer: 22 px (a) Label (b) Body text (c) Footer
21. 21.♿ Accessibility means an app works for ___. (a) nobody (b) only the coder (c) everyone (d) only experts
22. 22.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 10 px
    Title: 17 px
    Caption: 24 px
    Label: 17 px
    Footer: 19 px (a) Caption (b) Label (c) Title (d) Hint
24. 24.♿ Why add captions to videos? (a) to add colour (b) to hide the sound (c) to slow them down (d) so anyone can follow
25. 25.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 15 px
    Hint: 14 px
    Caption: 17 px
    Menu: 14 px
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.Which of these makes the app harder to use? (a) colour as the only clue (b) labels on every icon (c) text that can grow (d) big touch targets
29. 29.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a text label (c) a sound (d) a bright colour
30. 30.♿ A screen has 12 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
31. 31.🔍 Which is the odd one out? (a) tiny tap areas (b) big touch targets (c) captions on videos (d) strong colour contrast
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 13 px
    Body text: 14 px
    Footer: 23 px
    Hint: 17 px
33. 33.Which of these helps everyone use the app? (a) big touch targets (b) colour as the only clue (c) fast-flashing lights (d) tiny tap areas
34. 34.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 18 px
    Title: 13 px
    Body text: 21 px
    Menu: 22 px
    Hint: 18 px (a) Caption (b) Title (c) Body text (d) Menu
36. 36.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 11 px
    Caption: 12 px
    Footer: 19 px
    Title: 11 px
38. 38.♿ A screen has 11 icon buttons. Only 6 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?
    Caption: 10 px
    Body text: 26 px
    Title: 25 px (a) Title (b) Body text (c) Caption
40. 40.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True

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