App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 423 · 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.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
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.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 9 px
   Title: 25 px
   Hint: 28 px (a) Caption (b) Hint (c) Title
4. 4.♿ Why add captions to videos? (a) to add colour (b) to hide the sound (c) to slow them down (d) so anyone can follow
5. 5.Which of these helps everyone use the app? (a) fast-flashing lights (b) sudden loud sounds (c) icons with no labels (d) big touch targets
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 18 px
   Footer: 28 px
   Hint: 9 px
   Menu: 27 px (a) Footer (b) Title (c) Hint (d) Menu
7. 7.True or false: “icons with no labels” makes the app harder to use. (a) True (b) False
8. 8.Which of these helps everyone use the app? (a) tiny tap areas (b) captions on videos (c) colour as the only clue (d) icons with no labels
9. 9.🔍 Which is the odd one out? (a) strong colour contrast (b) text that can grow (c) labels on every icon (d) icons with no labels
10. 10.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) reads the screen aloud (d) takes photos
11. 11.Which of these makes the app harder to use? (a) captions on videos (b) text that can grow (c) big touch targets (d) colour as the only clue
12. 12.♿ What should every icon-only button have for screen readers? (a) a text label (b) a long animation (c) a bright colour (d) a sound
13. 13.Which of these helps everyone use the app? (a) sudden loud sounds (b) tiny tap areas (c) text that can grow (d) colour as the only clue
14. 14.Which of these helps everyone use the app? (a) sudden loud sounds (b) labels on every icon (c) colour as the only clue (d) tiny tap areas
15. 15.🔍 Which is the odd one out? (a) text that can grow (b) big touch targets (c) labels on every icon (d) colour as the only clue
16. 16.Which of these makes the app harder to use? (a) sudden loud sounds (b) text that can grow (c) labels on every icon (d) captions on videos
17. 17.Which of these helps everyone use the app? (a) strong colour contrast (b) tiny tap areas (c) colour as the only clue (d) fast-flashing lights
18. 18.🔍 Which is the odd one out? (a) strong colour contrast (b) labels on every icon (c) tiny tap areas (d) text that can grow
19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 22 px
    Label: 19 px
    Menu: 11 px
    Footer: 21 px
20. 20.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 17 px
    Footer: 13 px
    Hint: 25 px
    Body text: 20 px
    Menu: 17 px (a) Body text (b) Hint (c) Footer (d) Label
21. 21.♿ A screen has 8 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
22. 22.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
23. 23.🔍 Which is the odd one out? (a) tiny tap areas (b) labels on every icon (c) colour as the only clue (d) fast-flashing lights
24. 24.🔍 Which is the odd one out? (a) labels on every icon (b) sudden loud sounds (c) strong colour contrast (d) text that can grow
25. 25.🔍 Which is the odd one out? (a) icons with no labels (b) big touch targets (c) tiny tap areas (d) sudden loud sounds
26. 26.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
27. 27.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
28. 28.♿ A screen has 12 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 20 px
    Body text: 17 px
    Caption: 18 px
30. 30.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 21 px
    Body text: 25 px
    Caption: 16 px
    Label: 17 px
    Footer: 14 px (a) Caption (b) Body text (c) Footer (d) Menu
31. 31.♿ Accessibility means an app works for ___. (a) nobody (b) everyone (c) only experts (d) only the coder
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 13 px
    Body text: 18 px
    Label: 18 px
    Title: 18 px
    Hint: 24 px (a) Title (b) Label (c) Footer (d) Body text
33. 33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 28 px
    Hint: 9 px
    Menu: 21 px
    Footer: 19 px
    Body text: 18 px (a) Title (b) Menu (c) Footer (d) Hint
34. 34.♿ A screen has 11 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 16 px
    Menu: 23 px
    Footer: 10 px
    Label: 24 px
    Title: 21 px
36. 36.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
37. 37.True or false: “fast-flashing lights” helps everyone use the app. (a) False (b) True
38. 38.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 9 px
    Body text: 23 px
    Footer: 21 px
    Menu: 23 px (a) Menu (b) Footer (c) Caption (d) Body text
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 25 px
    Title: 20 px
    Menu: 10 px
    Footer: 17 px
    Hint: 16 px (a) Footer (b) Menu (c) Body text (d) Title
40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 11 px
    Label: 20 px
    Hint: 24 px
    Caption: 21 px
    Title: 16 px (a) Hint (b) Caption (c) Body text (d) Label

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