App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 560 · 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 helps everyone use the app? (a) fast-flashing lights (b) sudden loud sounds (c) icons with no labels (d) strong colour contrast
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 12 px
   Hint: 16 px
   Caption: 17 px
   Title: 18 px
3. 3.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
4. 4.🔍 Which is the odd one out? (a) big touch targets (b) labels on every icon (c) fast-flashing lights (d) text that can grow
5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 24 px
   Menu: 27 px
   Body text: 28 px
   Label: 10 px (a) Body text (b) Title (c) Menu (d) Label
6. 6.♿ A screen has 11 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
7. 7.Which of these makes the app harder to use? (a) text that can grow (b) strong colour contrast (c) captions on videos (d) tiny tap areas
8. 8.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
9. 9.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
10. 10.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) so anyone can follow (d) to add colour
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 20 px
    Footer: 11 px
    Menu: 12 px
12. 12.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 16 px
    Label: 10 px
    Caption: 20 px
    Title: 24 px (a) Caption (b) Label (c) Title (d) Hint
14. 14.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
15. 15.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 13 px
    Body text: 19 px
    Menu: 18 px
    Footer: 14 px
    Title: 23 px
16. 16.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a text label (c) a bright colour (d) a sound
17. 17.🔍 Which is the odd one out? (a) labels on every icon (b) icons with no labels (c) colour as the only clue (d) tiny tap areas
18. 18.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) icons with no labels (b) fast-flashing lights (c) captions on videos (d) colour as the only clue
20. 20.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 15 px
    Title: 20 px
    Label: 16 px
    Footer: 16 px
22. 22.Which of these helps everyone use the app? (a) fast-flashing lights (b) text that can grow (c) tiny tap areas (d) colour as the only clue
23. 23.Which of these makes the app harder to use? (a) text that can grow (b) captions on videos (c) strong colour contrast (d) fast-flashing lights
24. 24.🔍 Which is the odd one out? (a) icons with no labels (b) fast-flashing lights (c) colour as the only clue (d) big touch targets
25. 25.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the server (c) colour-blind users (d) the battery
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 21 px
    Label: 13 px
    Hint: 10 px
    Body text: 11 px
27. 27.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
28. 28.🔍 Which is the odd one out? (a) big touch targets (b) text that can grow (c) icons with no labels (d) strong colour contrast
29. 29.🔍 Which is the odd one out? (a) strong colour contrast (b) tiny tap areas (c) captions on videos (d) big touch targets
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 14 px
    Label: 20 px
    Caption: 19 px
31. 31.♿ Accessibility means an app works for ___. (a) nobody (b) only experts (c) only the coder (d) everyone
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 19 px
    Hint: 21 px
    Footer: 28 px
    Title: 14 px
    Body text: 19 px (a) Hint (b) Label (c) Footer (d) Title
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 20 px
    Label: 27 px
    Footer: 19 px
    Body text: 17 px
    Hint: 12 px (a) Menu (b) Footer (c) Label (d) Hint
34. 34.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
35. 35.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
36. 36.♿ What does a screen reader do? (a) reads the screen aloud (b) plays music (c) takes photos (d) makes text tiny
37. 37.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 24 px
    Menu: 24 px
    Caption: 10 px
    Hint: 21 px (a) Caption (b) Title (c) Menu (d) Hint
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 22 px
    Hint: 25 px
    Title: 23 px
    Caption: 9 px (a) Caption (b) Title (c) Hint (d) Label
40. 40.♿ A screen has 7 icon buttons. Only 5 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