App Dev Worksheet: Accessibility

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