App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 470 · 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 is the odd one out? (a) fast-flashing lights (b) tiny tap areas (c) strong colour contrast (d) sudden loud sounds
2. 2.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
3. 3.♿ What should every icon-only button have for screen readers? (a) a sound (b) a bright colour (c) a long animation (d) a text label
4. 4.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
5. 5.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
6. 6.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
7. 7.Which of these makes the app harder to use? (a) text that can grow (b) labels on every icon (c) icons with no labels (d) captions on videos
8. 8.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
9. 9.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
10. 10.True or false: “colour as the only clue” helps everyone use the app. (a) True (b) False
11. 11.♿ What does a screen reader do? (a) plays music (b) takes photos (c) reads the screen aloud (d) makes text tiny
12. 12.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
13. 13.♿ Accessibility means an app works for ___. (a) everyone (b) only experts (c) nobody (d) only the coder
14. 14.True or false: “captions on videos” makes the app harder to use. (a) True (b) False
15. 15.Which of these helps everyone use the app? (a) fast-flashing lights (b) tiny tap areas (c) sudden loud sounds (d) labels on every icon
16. 16.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
17. 17.♿ Why add captions to videos? (a) to add colour (b) to slow them down (c) so anyone can follow (d) to hide the sound
18. 18.Which of these helps everyone use the app? (a) colour as the only clue (b) fast-flashing lights (c) sudden loud sounds (d) strong colour contrast
19. 19.Which of these makes the app harder to use? (a) text that can grow (b) colour as the only clue (c) captions on videos (d) strong colour contrast
20. 20.♿ A screen has 5 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 24 px
    Label: 27 px
    Title: 9 px
    Hint: 26 px
    Menu: 17 px (a) Title (b) Label (c) Caption (d) Hint
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 21 px
    Body text: 15 px
    Caption: 14 px
    Menu: 11 px
    Title: 11 px
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 18 px
    Footer: 28 px
    Label: 14 px
    Caption: 18 px
    Hint: 25 px (a) Footer (b) Menu (c) Caption (d) Label
24. 24.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
25. 25.Which of these makes the app harder to use? (a) labels on every icon (b) strong colour contrast (c) big touch targets (d) sudden loud sounds
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 19 px
    Footer: 26 px
    Title: 16 px
    Menu: 9 px (a) Menu (b) Footer (c) Title (d) Body text
27. 27.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
28. 28.🔍 Which is the odd one out? (a) big touch targets (b) strong colour contrast (c) fast-flashing lights (d) captions on videos
29. 29.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
30. 30.True or false: “icons with no labels” makes the app harder to use. (a) False (b) True
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 21 px
    Caption: 10 px
    Label: 13 px
32. 32.🔍 Which is the odd one out? (a) icons with no labels (b) text that can grow (c) captions on videos (d) big touch targets
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 21 px
    Body text: 12 px
    Menu: 11 px
    Hint: 20 px
    Caption: 22 px
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 13 px
    Label: 18 px
    Caption: 18 px (a) Caption (b) Label (c) Footer
35. 35.🔍 Which is the odd one out? (a) colour as the only clue (b) sudden loud sounds (c) tiny tap areas (d) captions on videos
36. 36.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
37. 37.♿ A screen has 9 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 17 px
    Footer: 20 px
    Caption: 25 px
    Label: 26 px
    Hint: 14 px (a) Body text (b) Hint (c) Caption (d) Footer
39. 39.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
40. 40.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 13 px
    Label: 10 px
    Caption: 13 px

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