App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 322 · 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.True or false: “fast-flashing lights” makes the app harder to use. (a) False (b) True
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 10 px
   Label: 22 px
   Caption: 13 px
3. 3.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Title: 22 px
   Body text: 15 px
   Label: 18 px
5. 5.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) reads the screen aloud (d) plays music
6. 6.♿ Accessibility means an app works for ___. (a) nobody (b) everyone (c) only the coder (d) only experts
7. 7.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
8. 8.Which of these helps everyone use the app? (a) colour as the only clue (b) big touch targets (c) fast-flashing lights (d) tiny tap areas
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Body text: 23 px
   Menu: 11 px
   Footer: 19 px (a) Body text (b) Footer (c) Menu
10. 10.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
11. 11.♿ A screen has 10 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
12. 12.♿ Why add captions to videos? (a) to slow them down (b) to hide the sound (c) so anyone can follow (d) to add colour
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 28 px
    Body text: 21 px
    Caption: 25 px
    Hint: 17 px
    Footer: 14 px (a) Title (b) Body text (c) Footer (d) Caption
14. 14.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
15. 15.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) fast-flashing lights (b) icons with no labels (c) captions on videos (d) colour as the only clue
17. 17.🔍 Which is the odd one out? (a) text that can grow (b) fast-flashing lights (c) captions on videos (d) labels on every icon
18. 18.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 19 px
    Caption: 27 px
    Hint: 19 px
    Footer: 14 px (a) Caption (b) Hint (c) Footer (d) Label
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 14 px
    Label: 27 px
    Title: 24 px (a) Hint (b) Title (c) Label
21. 21.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
22. 22.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
23. 23.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) icons with no labels (d) strong colour contrast
24. 24.🔍 Which is the odd one out? (a) captions on videos (b) icons with no labels (c) big touch targets (d) strong colour contrast
25. 25.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 15 px
    Label: 12 px
    Body text: 21 px
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 11 px
    Caption: 23 px
    Title: 18 px (a) Caption (b) Title (c) Menu
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 14 px
    Title: 18 px
    Footer: 19 px (a) Body text (b) Title (c) Footer
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 22 px
    Hint: 11 px
    Label: 14 px
30. 30.Which of these helps everyone use the app? (a) icons with no labels (b) captions on videos (c) colour as the only clue (d) tiny tap areas
31. 31.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
32. 32.Which of these makes the app harder to use? (a) tiny tap areas (b) captions on videos (c) strong colour contrast (d) labels on every icon
33. 33.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a bright colour (c) a text label (d) a sound
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 18 px
    Label: 17 px
    Hint: 19 px
35. 35.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
36. 36.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) captions on videos (d) sudden loud sounds
37. 37.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
38. 38.🔍 Which is the odd one out? (a) icons with no labels (b) fast-flashing lights (c) labels on every icon (d) tiny tap areas
39. 39.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
40. 40.♿ A screen has 7 icon buttons. Only 4 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