App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 188 · 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) icons with no labels (b) labels on every icon (c) strong colour contrast (d) text that can grow
2. 2.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
3. 3.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
4. 4.♿ Why add captions to videos? (a) to add colour (b) so anyone can follow (c) to hide the sound (d) to slow them down
5. 5.🔍 Which is the odd one out? (a) captions on videos (b) fast-flashing lights (c) sudden loud sounds (d) colour as the only clue
6. 6.🔍 Which is the odd one out? (a) icons with no labels (b) big touch targets (c) tiny tap areas (d) colour as the only clue
7. 7.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the server (c) the battery (d) colour-blind users
8. 8.Which of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) big touch targets (d) tiny tap areas
9. 9.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 12 px
   Caption: 24 px
   Hint: 10 px
   Title: 15 px
10. 10.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
11. 11.♿ A screen has 6 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
12. 12.Which of these makes the app harder to use? (a) labels on every icon (b) sudden loud sounds (c) big touch targets (d) text that can grow
13. 13.♿ A screen has 8 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 27 px
    Body text: 9 px
    Footer: 18 px (a) Body text (b) Footer (c) Caption
15. 15.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
16. 16.Which of these helps everyone use the app? (a) strong colour contrast (b) colour as the only clue (c) fast-flashing lights (d) tiny tap areas
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 17 px
    Title: 21 px
    Body text: 23 px
    Menu: 16 px
18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 24 px
    Hint: 10 px
    Menu: 13 px
19. 19.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 19 px
    Label: 24 px
    Title: 10 px (a) Title (b) Label (c) Hint
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 12 px
    Footer: 21 px
    Body text: 16 px
    Title: 18 px
    Menu: 26 px (a) Footer (b) Caption (c) Body text (d) Title
21. 21.♿ What should every icon-only button have for screen readers? (a) a sound (b) a bright colour (c) a text label (d) a long animation
22. 22.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 24 px
    Hint: 13 px
    Title: 17 px (a) Menu (b) Hint (c) Title
24. 24.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 18 px
    Body text: 18 px
    Title: 24 px
    Label: 11 px
    Caption: 20 px
26. 26.🔍 Which is the odd one out? (a) text that can grow (b) captions on videos (c) colour as the only clue (d) strong colour contrast
27. 27.True or false: “colour as the only clue” makes the app harder to use. (a) False (b) True
28. 28.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
29. 29.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
30. 30.Which of these helps everyone use the app? (a) tiny tap areas (b) labels on every icon (c) sudden loud sounds (d) colour as the only clue
31. 31.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) labels on every icon (d) sudden loud sounds
32. 32.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
33. 33.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
34. 34.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 24 px
    Body text: 12 px
    Hint: 17 px (a) Body text (b) Title (c) Hint
36. 36.Which of these makes the app harder to use? (a) icons with no labels (b) text that can grow (c) captions on videos (d) big touch targets
37. 37.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 18 px
    Title: 25 px
    Caption: 12 px
    Hint: 22 px (a) Hint (b) Menu (c) Title (d) Caption
38. 38.🔍 Which is the odd one out? (a) tiny tap areas (b) labels on every icon (c) fast-flashing lights (d) colour as the only clue
39. 39.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 22 px
    Hint: 19 px
    Title: 18 px
    Footer: 9 px (a) Hint (b) Title (c) Body text (d) Footer

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