App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 691 · 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.♿ Why add captions to videos? (a) so anyone can follow (b) to slow them down (c) to add colour (d) to hide the sound
2. 2.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
3. 3.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
4. 4.Which of these helps everyone use the app? (a) icons with no labels (b) captions on videos (c) sudden loud sounds (d) tiny tap areas
5. 5.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
6. 6.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) makes it harder (b) helps everyone
7. 7.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
8. 8.Which of these helps everyone use the app? (a) fast-flashing lights (b) colour as the only clue (c) sudden loud sounds (d) labels on every icon
9. 9.🔍 Which is the odd one out? (a) icons with no labels (b) captions on videos (c) sudden loud sounds (d) tiny tap areas
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 11 px
    Footer: 18 px
    Caption: 24 px (a) Caption (b) Label (c) Footer
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 13 px
    Footer: 22 px
    Caption: 18 px (a) Footer (b) Caption (c) Label
12. 12.True or false: “big touch targets” makes the app harder to use. (a) True (b) False
13. 13.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 19 px
    Hint: 9 px
    Menu: 16 px
    Footer: 17 px
    Title: 28 px (a) Body text (b) Hint (c) Footer (d) Menu
15. 15.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
16. 16.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 20 px
    Menu: 17 px
    Footer: 13 px
    Hint: 23 px (a) Menu (b) Footer (c) Hint (d) Title
17. 17.♿ A screen has 9 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
18. 18.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 11 px
    Body text: 10 px
    Label: 17 px
    Title: 12 px
    Footer: 10 px
20. 20.🔍 Which is the odd one out? (a) text that can grow (b) labels on every icon (c) icons with no labels (d) big touch targets
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 12 px
    Menu: 23 px
    Label: 22 px (a) Title (b) Menu (c) Label
22. 22.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 20 px
    Caption: 17 px
    Hint: 17 px
    Label: 16 px
    Title: 14 px
23. 23.♿ 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
24. 24.♿ 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
25. 25.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 23 px
    Footer: 21 px
    Title: 17 px
26. 26.True or false: “colour as the only clue” makes the app harder to use. (a) True (b) False
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 11 px
    Menu: 19 px
    Title: 11 px
    Footer: 22 px
28. 28.♿ A screen has 10 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
29. 29.🔍 Which is the odd one out? (a) icons with no labels (b) tiny tap areas (c) strong colour contrast (d) colour as the only clue
30. 30.♿ A screen has 9 icon buttons. Only 1 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?
    Body text: 18 px
    Title: 9 px
    Hint: 18 px (a) Hint (b) Title (c) Body text
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 28 px
    Hint: 9 px
    Label: 27 px (a) Hint (b) Footer (c) Label
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 18 px
    Title: 19 px
    Caption: 13 px
    Label: 18 px
    Menu: 19 px (a) Label (b) Title (c) Caption (d) Body text
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 10 px
    Footer: 28 px
    Title: 16 px (a) Title (b) Footer (c) Hint
35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 9 px
    Body text: 16 px
    Caption: 18 px (a) Body text (b) Title (c) Caption
36. 36.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 12 px
    Hint: 12 px
    Footer: 17 px
    Label: 21 px
    Body text: 12 px
37. 37.♿ A screen has 12 icon buttons. Only 5 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: 14 px
    Menu: 27 px
    Hint: 28 px
    Label: 17 px
    Title: 17 px (a) Menu (b) Body text (c) Label (d) Hint
39. 39.🔍 Which is the odd one out? (a) captions on videos (b) strong colour contrast (c) colour as the only clue (d) big touch targets
40. 40.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

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