App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 856 · 40 questions

Developer's tip (Think like the user): First decide which topic the question is about. Use that lesson’s rule: 48 px buttons, 16 px text, the screen stack, the flow order. For code, count positions from 0.

1. 1.True or false: chat messages to friends fits saving in the cloud. (a) False (b) True
2. 2.True or false: a final design shows where things go. (a) False (b) True
3. 3.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
4. 4.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Size → Item → Pens → Shop → Results
   Design B: Home → Offers → Cart (a) Design B (b) Design A
5. 5.💾 What number does this code show?
   let points = 6;
   points = points - 2;
   points = points + 2;
   show(points);
6. 6.Which of these is about UI (the look)? (a) how users feel after (b) the button colours (c) how fast a task is done (d) how easy sign-up is
7. 7.🔀 In a good flow, each screen should lead to ___. (a) a clear next step (b) a random page (c) the same screen (d) a dead end
8. 8.True or false: space between buttons is good button design. (a) False (b) True
9. 9.🔢 In a sign-up flow, which comes first: “tap “Sign up”” or “enter the code sent”? (a) tap “Sign up” (b) enter the code sent
10. 10.True or false: a final design uses the final pictures. (a) True (b) False
11. 11.🎨 Is this about UI or UX: the button colours? (a) UI (b) UX
12. 12.🧭 What does the back button usually do? (a) opens settings (b) goes to the last screen (c) closes all apps (d) deletes the page
13. 13.🧭 Which part of navigation sits at the bottom? (a) a menu button (b) the back button (c) a tab bar
14. 14.🔢 In a quiz-app flow, what comes right after “tap “Start quiz””? (a) see the final score (b) pick an answer (c) read a question (d) see if it is right
15. 15.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Address → Item → Shop → Menu → Search
    Design B: Home → Shop → Size
16. 16.🔢 In a food-order flow, which comes LAST? (a) track the order (b) pick a dish (c) open the menu (d) pay for the order
17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 23 px
    Body text: 11 px
    Footer: 25 px (a) Footer (b) Body text (c) Caption
18. 18.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a final design (b) a wireframe
19. 19.Which of these is true of a wireframe? (a) uses the final pictures (b) shows the real fonts (c) has no real colours (d) looks like the real app
20. 20.Which colour pair is easy to read? (a) yellow on white (b) pale pink on white (c) white on black (d) light grey on white
21. 21.True or false: grey text on grey is good button design. (a) False (b) True
22. 22.💾 Where should the app save your last game level: on the phone or in the cloud? (a) on the phone (b) in the cloud
23. 23.💾 Where should the app save chat messages to friends: on the phone or in the cloud? (a) on the phone (b) in the cloud
24. 24.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Item → Menu → Shop → Offers
    Design B: Home → Pay → Shop → Results → Cart → Pens → Size (a) Design A (b) Design B
25. 25.True or false: a class leaderboard fits saving on the phone. (a) False (b) True
26. 26.Which of these is true of a tab bar? (a) goes to the last screen (b) hides extra links (c) sits at the bottom (d) opens a list of pages
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 16 px
    Label: 18 px
    Hint: 9 px (a) Title (b) Label (c) Hint
28. 28.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Friend list”
    2. tap Back
    3. tap the Lessons tab
    4. open “Friend list”
    5. tap the Lessons tab
    How many times must you tap Back to reach the main screen of this tab?
29. 29.✏️ What is a wireframe? (a) a charging cable (b) a type of password (c) the finished app (d) a simple screen sketch
30. 30.🎨 Is this about UI or UX: how fast a task is done? (a) UX (b) UI
31. 31.🔢 In a food-order flow, which comes first: “track the order” or “pay for the order”? (a) track the order (b) pay for the order
32. 32.🔢 In a photo-post flow, which comes FIRST? (a) write a caption (b) add a filter (c) open the camera screen (d) take the photo
33. 33.♿ What does a screen reader do? (a) takes photos (b) plays music (c) makes text tiny (d) reads the screen aloud
34. 34.True or false: the icon shapes is about UI (the look). (a) True (b) False
35. 35.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
36. 36.💾 What is a variable? (a) a named box for a value (b) a picture (c) a type of screen (d) a phone setting
37. 37.💾 Data saved only on the phone is lost when ___. (a) the phone is lost (b) the app is closed (c) the screen turns off (d) you send a message
38. 38.🔘 Our rule: buttons are at least 48 px tall. The Help button is 28 px tall. How many px taller must it be?
39. 39.🔢 In a photo-post flow, which comes first: “open the camera screen” or “write a caption”? (a) open the camera screen (b) write a caption
40. 40.🔘 Is this good or poor button design: grey text on grey? (a) poor design (b) good design

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