App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 561 · 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.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ filter buttons ]
   [ tab bar ]
   [ title text ]
   [ top bar ]
   [ list of items ] (a) top bar (b) list of items (c) title text (d) filter buttons
2. 2.🖼️ In this wireframe (top to bottom), what is right above the title text?
   [ Add button ]
   [ search box ]
   [ title text ]
   [ Save button ] (a) Save button (b) search box (c) Add button
3. 3.Which of these is about UI (the look)? (a) how many taps it takes (b) the icon shapes (c) how fast a task is done (d) how easy sign-up is
4. 4.Which of these is true of a final design? (a) shows the real fonts (b) uses plain grey boxes (c) is a quick sketch (d) has no real colours
5. 5.🎨 Is this about UI or UX: the button colours? (a) UX (b) UI
6. 6.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. tap the Search tab
   2. open “Badges”
   3. tap Back
   4. open “Help page”
   5. tap Back
   Which screen are you on now? (a) Search (b) Help page (c) Home (d) Badges
7. 7.✏️ What is the easiest way to draw a first wireframe? (a) a phone case (b) a microphone (c) a 3D printer (d) pencil and paper
8. 8.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. open “Help page”
   2. tap the Me tab
   3. open “Video”
   4. open “Friend list”
   Which screen are you on now? (a) Video (b) Friend list (c) Help page (d) Lessons
9. 9.🔘 Is this good or poor button design: a clear word like Save? (a) good design (b) poor design
10. 10.True or false: chat messages to friends fits saving on the phone. (a) True (b) False
11. 11.💾 Saving data in the cloud lets you ___. (a) never need a password (b) shrink the app (c) skip the internet (d) use it on any device
12. 12.🔢 In a quiz-app flow, which comes LAST? (a) pick an answer (b) see the final score (c) tap “Start quiz” (d) read a question
13. 13.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a final design (b) a wireframe
14. 14.🔘 Our rule: buttons are at least 48 px tall. The Back button is 20 px tall. How many px taller must it be?
15. 15.Which of these is true of the back button? (a) undoes one move (b) hides extra links (c) sits at the bottom (d) opens a list of pages
16. 16.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. open “Video”
    3. tap Back
    How many times must you tap Back to reach the main screen of this tab?
17. 17.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
18. 18.Which colour pair is easy to read? (a) red on green (b) light grey on white (c) black on pale grey (d) yellow on white
19. 19.🔘 Is this good or poor button design: grey text on grey? (a) good design (b) poor design
20. 20.Which colour pair is hard to read? (a) black on pale grey (b) red on green (c) white on black (d) dark blue on white
21. 21.True or false: a class leaderboard fits saving on the phone. (a) True (b) False
22. 22.✏️ A box with a cross in a wireframe usually means ___. (a) an error (b) delete this (c) a closed app (d) a picture goes here
23. 23.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
24. 24.💾 pop() takes off the last item. What does this code show?
    let notes = ["Sports", "Science", "Maths"];
    notes.pop();
    show(notes[notes.length - 1]); (a) Maths (b) Sports (c) Science
25. 25.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Shop → Menu → Confirm → Size → Item
    Design B: Home → Results → Item
26. 26.💾 Where should the app save a class leaderboard: on the phone or in the cloud? (a) in the cloud (b) on the phone
27. 27.♿ What should every icon-only button have for screen readers? (a) a text label (b) a long animation (c) a sound (d) a bright colour
28. 28.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Shop → Item → Menu → Offers → Confirm
    Design B: Home → Pens → Shop
29. 29.💾 Where should the app save the sound on/off setting: on the phone or in the cloud? (a) in the cloud (b) on the phone
30. 30.💾 pop() takes off the last item. What does this code show?
    let notes = ["Music", "Science", "Maths", "Sports"];
    notes.pop();
    show(notes[notes.length - 1]); (a) Maths (b) Music (c) Sports (d) Science
31. 31.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Offers → Shop → Pay → Search → Pens → Cart
    Design B: Home → Shop → Address
32. 32.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Address → Confirm → Menu → Cart → Size
    Design B: Home → Offers → Shop → Pay → Address → Item → Menu
33. 33.🔢 In a food-order flow, which comes first: “check the cart” or “add it to the cart”? (a) check the cart (b) add it to the cart
34. 34.True or false: a wireframe uses the final pictures. (a) True (b) False
35. 35.💾 What is a variable? (a) a picture (b) a named box for a value (c) a phone setting (d) a type of screen
36. 36.🌗 Is dark blue on black easy or hard to read on a button? (a) easy to read (b) hard to read
37. 37.🔘 Is this good or poor button design: a big, easy tap area? (a) good design (b) poor design
38. 38.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Pens → Item → Menu → Search → Cart → Offers
    Design B: Home → Address → Item → Size (a) Design A (b) Design B
39. 39.Which of these helps everyone use the app? (a) captions on videos (b) colour as the only clue (c) tiny tap areas (d) sudden loud sounds
40. 40.🔍 Which is the odd one out? (a) the font size (b) the theme colours (c) the icon shapes (d) how fast a task is done

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