App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 930 · 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: a final design is a quick sketch. (a) False (b) True
2. 2.Which colour pair is hard to read? (a) red on green (b) dark blue on white (c) white on dark green (d) black on pale grey
3. 3.Which colour pair is easy to read? (a) dark blue on white (b) yellow on white (c) light grey on white (d) pale pink on white
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 13 px
   Caption: 13 px
   Footer: 24 px
   Hint: 13 px
5. 5.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Confirm → Menu → Pens → Pay → Item → Search
   Design B: Home → Address → Size
6. 6.True or false: a wireframe looks like the real app. (a) False (b) True
7. 7.💾 Where should the app save chat messages to friends: on the phone or in the cloud? (a) in the cloud (b) on the phone
8. 8.True or false: your last game level fits saving on the phone. (a) False (b) True
9. 9.Which of these helps everyone use the app? (a) icons with no labels (b) captions on videos (c) colour as the only clue (d) tiny tap areas
10. 10.🔢 In a sign-up flow, which comes first: “enter the code sent” or “type name and email”? (a) enter the code sent (b) type name and email
11. 11.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Confirm → Pens
    Design B: Home → Confirm → Size → Pay (a) Design A (b) Design B
12. 12.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Item → Results → Shop → Pens
    Design B: Home → Search → Offers → Pens → Pay → Cart
13. 13.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Address → Cart → Pay → Confirm → Pens → Search
    Design B: Home → Search → Item → Cart
14. 14.💾 What is a variable? (a) a picture (b) a named box for a value (c) a type of screen (d) a phone setting
15. 15.🌗 Is white on dark green easy or hard to read on a button? (a) easy to read (b) hard to read
16. 16.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Address → Size
    Design B: Home → Results → Item → Cart → Pens
17. 17.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap Back
    3. open “Edit photo”
    4. tap the Search tab
    5. tap the Profile tab
    Which screen are you on now? (a) Edit photo (b) Profile (c) Help page (d) Home
18. 18.🔢 In a sign-up flow, which comes LAST? (a) open the app (b) enter the code sent (c) see the home screen (d) type name and email
19. 19.🔢 In a quiz-app flow, what comes right after “tap “Start quiz””? (a) see if it is right (b) see the final score (c) read a question (d) pick an answer
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 17 px
    Body text: 12 px
    Menu: 20 px
21. 21.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ list of items ]
    [ top bar ]
    [ filter buttons ]
    [ title text ]
    [ big picture ] (a) title text (b) list of items (c) top bar (d) big picture
22. 22.♿ Why add captions to videos? (a) so anyone can follow (b) to slow them down (c) to hide the sound (d) to add colour
23. 23.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Friend list”
    2. tap the Quiz tab
    3. tap the Quiz tab
    4. open “Match report”
    5. tap Back
    Which screen are you on now? (a) Lessons (b) Match report (c) Friend list (d) Quiz
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 28 px
    Label: 17 px
    Hint: 24 px
    Menu: 21 px
    Footer: 9 px (a) Footer (b) Hint (c) Title (d) Label
25. 25.✏️ What is a wireframe? (a) a simple screen sketch (b) the finished app (c) a type of password (d) a charging cable
26. 26.🎨 A beautiful app that confuses everyone has ___. (a) good UX but poor UI (b) perfect UX (c) no UI at all (d) good UI but poor UX
27. 27.💾 What number does this code show?
    let score = 4;
    score = score - 4;
    score = score + 4;
    show(score);
28. 28.🎨 Is this about UI or UX: the font size? (a) UX (b) UI
29. 29.💾 What number does this code show?
    let score = 8;
    score = score - 8;
    score = score + 1;
    show(score);
30. 30.Which of these is true of the back button? (a) hides extra links (b) switches main sections (c) sits at the bottom (d) undoes one move
31. 31.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Score card”
    3. open “Score card”
    4. tap Back
    Which screen are you on now? (a) Profile (b) Search (c) Home (d) Score card
32. 32.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
33. 33.🔢 In a sign-up flow, what comes right after “type name and email”? (a) enter the code sent (b) make a password (c) open the app (d) tap “Sign up”
34. 34.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Item → Size → Cart → Address → Search
    Design B: Home → Shop → Cart (a) Design A (b) Design B
35. 35.🔍 Which is the odd one out? (a) how many taps it takes (b) the font size (c) how fast a task is done (d) how users feel after
36. 36.🎨 Is this about UI or UX: how easy sign-up is? (a) UI (b) UX
37. 37.🧭 Why should every screen show where you are? (a) so users do not get lost (b) to use more battery (c) to hide the menu (d) to look busy
38. 38.💾 Which can hold many values in order? (a) a button (b) a list (c) a single number (d) a switch
39. 39.🔢 In a quiz-app flow, which comes first: “pick an answer” or “read a question”? (a) pick an answer (b) read a question
40. 40.True or false: a tiny 20 px button is good button design. (a) False (b) True

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