App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 586 · 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 of these makes the app harder to use? (a) labels on every icon (b) text that can grow (c) big touch targets (d) icons with no labels
2. 2.♿ Accessibility means an app works for ___. (a) only the coder (b) nobody (c) everyone (d) only experts
3. 3.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
4. 4.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 10 px
   Hint: 17 px
   Label: 27 px
   Body text: 28 px
   Footer: 28 px (a) Body text (b) Label (c) Hint (d) Title
5. 5.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Hint: 24 px
   Menu: 17 px
   Body text: 18 px
6. 6.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
7. 7.Which of these helps everyone use the app? (a) labels on every icon (b) sudden loud sounds (c) icons with no labels (d) tiny tap areas
8. 8.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 23 px
   Label: 23 px
   Menu: 13 px (a) Footer (b) Label (c) Menu
9. 9.♿ A screen has 6 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
10. 10.♿ Why add captions to videos? (a) to slow them down (b) to hide the sound (c) to add colour (d) so anyone can follow
11. 11.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 14 px
    Hint: 17 px
    Menu: 24 px
    Footer: 27 px
    Body text: 22 px (a) Hint (b) Menu (c) Label (d) Footer
12. 12.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
13. 13.🔍 Which is the odd one out? (a) sudden loud sounds (b) tiny tap areas (c) fast-flashing lights (d) big touch targets
14. 14.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) text that can grow (b) captions on videos (c) labels on every icon (d) tiny tap areas
16. 16.Which of these makes the app harder to use? (a) big touch targets (b) strong colour contrast (c) colour as the only clue (d) captions on videos
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 20 px
    Menu: 24 px
    Label: 16 px
    Footer: 9 px (a) Footer (b) Menu (c) Label (d) Caption
18. 18.🔍 Which is the odd one out? (a) tiny tap areas (b) fast-flashing lights (c) text that can grow (d) colour as the only clue
19. 19.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
20. 20.♿ A screen has 10 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?
    Label: 11 px
    Body text: 19 px
    Hint: 18 px (a) Label (b) Hint (c) Body text
22. 22.Which of these makes the app harder to use? (a) labels on every icon (b) strong colour contrast (c) big touch targets (d) tiny tap areas
23. 23.♿ A screen has 12 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 22 px
    Title: 9 px
    Body text: 23 px
    Hint: 18 px
    Footer: 26 px (a) Caption (b) Body text (c) Hint (d) Title
25. 25.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
26. 26.♿ A screen has 9 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
27. 27.🔍 Which is the odd one out? (a) fast-flashing lights (b) labels on every icon (c) tiny tap areas (d) colour as the only clue
28. 28.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 16 px
    Hint: 19 px
    Title: 13 px
    Label: 19 px
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 27 px
    Title: 19 px
    Menu: 13 px
    Hint: 23 px (a) Footer (b) Hint (c) Title (d) Menu
30. 30.Which of these helps everyone use the app? (a) big touch targets (b) fast-flashing lights (c) icons with no labels (d) colour as the only clue
31. 31.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) icons with no labels (d) big touch targets
32. 32.Which of these helps everyone use the app? (a) strong colour contrast (b) colour as the only clue (c) sudden loud sounds (d) fast-flashing lights
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 20 px
    Hint: 16 px
    Title: 10 px (a) Hint (b) Label (c) Title
34. 34.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 21 px
    Footer: 9 px
    Title: 18 px
    Label: 23 px
    Caption: 16 px (a) Label (b) Footer (c) Body text (d) Title
35. 35.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
36. 36.♿ What does a screen reader do? (a) reads the screen aloud (b) plays music (c) takes photos (d) makes text tiny
37. 37.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
38. 38.♿ A screen has 12 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 28 px
    Title: 9 px
    Footer: 19 px (a) Body text (b) Footer (c) Title
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