App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 295 · 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.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 9 px
   Hint: 16 px
   Body text: 23 px (a) Body text (b) Title (c) Hint
2. 2.♿ A screen has 12 icon buttons. Only 10 of them have a text label for screen readers. How many still need a label?
3. 3.♿ A screen has 9 icon buttons. Only 2 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) sudden loud sounds (c) colour as the only clue (d) labels on every icon
5. 5.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) captions on videos (b) icons with no labels (c) labels on every icon (d) strong colour contrast
7. 7.Which of these helps everyone use the app? (a) captions on videos (b) sudden loud sounds (c) icons with no labels (d) colour as the only clue
8. 8.Which of these makes the app harder to use? (a) colour as the only clue (b) text that can grow (c) labels on every icon (d) strong colour contrast
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Footer: 12 px
   Label: 24 px
   Body text: 18 px
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 14 px
    Footer: 18 px
    Label: 21 px
11. 11.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
12. 12.Which of these helps everyone use the app? (a) fast-flashing lights (b) tiny tap areas (c) big touch targets (d) icons with no labels
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 9 px
    Hint: 17 px
    Body text: 20 px
    Label: 27 px (a) Hint (b) Label (c) Menu (d) Body text
14. 14.♿ What should every icon-only button have for screen readers? (a) a long animation (b) a sound (c) a text label (d) a bright colour
15. 15.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
16. 16.Which of these makes the app harder to use? (a) tiny tap areas (b) big touch targets (c) captions on videos (d) text that can grow
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 27 px
    Caption: 12 px
    Menu: 25 px (a) Menu (b) Caption (c) Title
18. 18.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 24 px
    Footer: 22 px
    Label: 12 px
    Body text: 16 px (a) Label (b) Body text (c) Caption (d) Footer
19. 19.Which of these makes the app harder to use? (a) fast-flashing lights (b) big touch targets (c) labels on every icon (d) text that can grow
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 27 px
    Footer: 25 px
    Body text: 23 px
    Caption: 23 px
    Title: 13 px (a) Menu (b) Body text (c) Footer (d) Title
21. 21.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) strong colour contrast (b) labels on every icon (c) text that can grow (d) sudden loud sounds
23. 23.♿ A screen has 9 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
24. 24.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
25. 25.♿ Why add captions to videos? (a) to slow them down (b) to add colour (c) so anyone can follow (d) to hide the sound
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 19 px
    Caption: 27 px
    Title: 14 px
    Footer: 18 px (a) Title (b) Body text (c) Footer (d) Caption
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 11 px
    Menu: 22 px
    Footer: 26 px (a) Menu (b) Footer (c) Caption
28. 28.♿ What does a screen reader do? (a) takes photos (b) makes text tiny (c) plays music (d) reads the screen aloud
29. 29.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
30. 30.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 16 px
    Hint: 12 px
    Caption: 17 px
    Title: 18 px
    Label: 25 px (a) Title (b) Hint (c) Caption (d) Footer
32. 32.True or false: “captions on videos” makes the app harder to use. (a) False (b) True
33. 33.Which of these makes the app harder to use? (a) captions on videos (b) icons with no labels (c) strong colour contrast (d) big touch targets
34. 34.🔍 Which is the odd one out? (a) captions on videos (b) labels on every icon (c) fast-flashing lights (d) big touch targets
35. 35.True or false: “sudden loud sounds” makes the app harder to use. (a) True (b) False
36. 36.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
37. 37.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 12 px
    Body text: 20 px
    Footer: 11 px
    Caption: 20 px
    Label: 10 px
38. 38.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
39. 39.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
40. 40.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True

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