App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 829 · 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.♿ Accessibility means an app works for ___. (a) nobody (b) only the coder (c) everyone (d) only experts
2. 2.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Menu: 20 px
   Title: 12 px
   Footer: 23 px
3. 3.🔍 Which is the odd one out? (a) captions on videos (b) tiny tap areas (c) big touch targets (d) labels on every icon
4. 4.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
5. 5.🔍 Which is the odd one out? (a) colour as the only clue (b) big touch targets (c) sudden loud sounds (d) fast-flashing lights
6. 6.♿ What does a screen reader do? (a) takes photos (b) makes text tiny (c) reads the screen aloud (d) plays music
7. 7.Which of these helps everyone use the app? (a) icons with no labels (b) colour as the only clue (c) fast-flashing lights (d) strong colour contrast
8. 8.♿ Why add captions to videos? (a) to add colour (b) so anyone can follow (c) to slow them down (d) to hide the sound
9. 9.🔍 Which is the odd one out? (a) sudden loud sounds (b) tiny tap areas (c) fast-flashing lights (d) labels on every icon
10. 10.Which of these makes the app harder to use? (a) strong colour contrast (b) big touch targets (c) icons with no labels (d) labels on every icon
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.Which of these makes the app harder to use? (a) big touch targets (b) tiny tap areas (c) labels on every icon (d) text that can grow
13. 13.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) makes it harder (b) helps everyone
14. 14.Which of these makes the app harder to use? (a) fast-flashing lights (b) text that can grow (c) big touch targets (d) labels on every icon
15. 15.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a long animation (c) a sound (d) a text label
16. 16.♿ A screen has 9 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
17. 17.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) the server (d) colour-blind users
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 11 px
    Title: 19 px
    Menu: 11 px
    Label: 10 px
    Footer: 24 px
19. 19.♿ A screen has 9 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 20 px
    Footer: 18 px
    Body text: 15 px
    Hint: 19 px
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 11 px
    Footer: 27 px
    Caption: 19 px
    Label: 19 px
    Hint: 19 px (a) Label (b) Footer (c) Menu (d) Caption
22. 22.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 9 px
    Label: 24 px
    Body text: 22 px
    Title: 27 px
    Menu: 23 px (a) Hint (b) Label (c) Body text (d) Title
24. 24.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
25. 25.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 16 px
    Menu: 21 px
    Label: 11 px
    Hint: 24 px
    Title: 11 px
27. 27.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
28. 28.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 11 px
    Body text: 16 px
    Menu: 24 px
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 17 px
    Label: 14 px
    Body text: 18 px
31. 31.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
32. 32.🔍 Which is the odd one out? (a) captions on videos (b) big touch targets (c) labels on every icon (d) sudden loud sounds
33. 33.🔍 Which is the odd one out? (a) fast-flashing lights (b) colour as the only clue (c) sudden loud sounds (d) captions on videos
34. 34.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
35. 35.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
36. 36.♿ A screen has 12 icon buttons. Only 7 of them have a text label for screen readers. How many still need a label?
37. 37.Which of these helps everyone use the app? (a) colour as the only clue (b) labels on every icon (c) fast-flashing lights (d) tiny tap areas
38. 38.Which of these helps everyone use the app? (a) sudden loud sounds (b) tiny tap areas (c) colour as the only clue (d) captions on videos
39. 39.Which of these makes the app harder to use? (a) strong colour contrast (b) labels on every icon (c) sudden loud sounds (d) captions on videos
40. 40.True or false: “sudden loud sounds” helps everyone use the app. (a) True (b) False

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