App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 757 · 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.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. tap the Chat tab
   2. open “Help page”
   3. open “Badges”
   Which screen are you on now? (a) Feed (b) Chat (c) Badges (d) Help page
2. 2.✏️ What is a wireframe? (a) a charging cable (b) a simple screen sketch (c) a type of password (d) the finished app
3. 3.🔢 In a sign-up flow, which comes LAST? (a) tap “Sign up” (b) make a password (c) see the home screen (d) enter the code sent
4. 4.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Badges”
   2. tap the Home tab
   3. tap the Search tab
   4. open “Badges”
   Which screen are you on now? (a) Home (b) Search (c) Profile (d) Badges
5. 5.💾 What number does this code show?
   let notes = ["Music", "Sports", "Maths", "Science"];
   notes.push("Art");
   show(notes.length);
6. 6.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. tap the Search tab
   2. tap the Profile tab
   3. open “Match report”
   4. open “Help page”
   5. open “Edit photo”
   Which screen are you on now? (a) Help page (b) Match report (c) Edit photo (d) Home
7. 7.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
8. 8.🌗 Is dark blue on black easy or hard to read on a button? (a) easy to read (b) hard to read
9. 9.True or false: the sound on/off setting fits saving on the phone. (a) True (b) False
10. 10.Which colour pair is easy to read? (a) red on green (b) light grey on white (c) yellow on white (d) dark blue on white
11. 11.🔢 In a quiz-app flow, which comes first: “see the final score” or “read a question”? (a) see the final score (b) read a question
12. 12.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
13. 13.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 11 px
    Title: 16 px
    Body text: 21 px
    Caption: 22 px
14. 14.🔢 In a food-order flow, what comes right after “add it to the cart”? (a) check the cart (b) open the menu (c) pick a dish (d) track the order
15. 15.✏️ Do wireframes usually show the final colours? (a) No (b) Yes
16. 16.🔀 A screen with no way forward or back is called a ___. (a) tab bar (b) shortcut (c) home screen (d) dead end
17. 17.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Confirm → Cart → Address → Offers → Size → Shop
    Design B: Home → Pay → Shop
18. 18.🖼️ How many parts (boxes) does this wireframe have?
    [ title text ]
    [ tab bar ]
    [ top bar ]
    [ Save button ]
    [ menu icon ]
19. 19.🔍 Which is the odd one out? (a) how fast a task is done (b) how many taps it takes (c) how users feel after (d) the theme colours
20. 20.Which of these is true of a wireframe? (a) has no real colours (b) looks like the real app (c) has the real colours (d) shows the real fonts
21. 21.🌗 Is yellow on white easy or hard to read on a button? (a) hard to read (b) easy to read
22. 22.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Send button: 36 px tall
    Cancel button: 64 px tall
    Done button: 64 px tall (a) Done (b) Cancel (c) Send
23. 23.🔢 In a food-order flow, what comes right after “check the cart”? (a) open the menu (b) pick a dish (c) add it to the cart (d) pay for the order
24. 24.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. tap the Search tab
    3. open “Help page”
    Which screen are you on now? (a) Profile (b) Home (c) Search (d) Help page
25. 25.✏️ Is this true of a wireframe or of a final design: shows where things go? (a) a final design (b) a wireframe
26. 26.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. open “Friend list”
    3. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
27. 27.💾 What number does this code show?
    let stars = 4;
    stars = stars - 3;
    stars = stars + 5;
    show(stars);
28. 28.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Badges”
    3. tap Back
    4. open “Video”
    5. tap Back
    Which screen are you on now? (a) Badges (b) Video (c) Home (d) Profile
29. 29.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 18 px
    Title: 18 px
    Hint: 18 px
    Footer: 24 px
    Caption: 10 px
30. 30.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Done button: 40 px tall
    Next button: 56 px tall
    Back button: 64 px tall (a) Next (b) Back (c) Done
31. 31.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Cart → Shop → Search → Size → Offers → Item
    Design B: Home → Menu → Confirm (a) Design B (b) Design A
32. 32.🔘 Is this good or poor button design: icons with no meaning? (a) poor design (b) good design
33. 33.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 23 px
    Title: 16 px
    Menu: 16 px
34. 34.🔢 In a photo-post flow, what comes right after “add a filter”? (a) take the photo (b) write a caption (c) open the camera screen (d) post the photo
35. 35.Which colour pair is hard to read? (a) black on pale grey (b) black on yellow (c) red on green (d) dark blue on white
36. 36.✏️ Is this true of a wireframe or of a final design: has no real colours? (a) a final design (b) a wireframe
37. 37.🖼️ In this wireframe (top to bottom), what is right below the list of items?
    [ Add button ]
    [ title text ]
    [ tab bar ]
    [ list of items ]
    [ filter buttons ] (a) tab bar (b) filter buttons (c) Add button (d) title text
38. 38.🧭 About how many tabs suit a tab bar best? (a) 1 (b) 10 to 12 (c) 3 to 5 (d) 20
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 16 px
    Hint: 19 px
    Menu: 18 px
    Footer: 19 px
    Caption: 9 px (a) Menu (b) Body text (c) Caption (d) Hint
40. 40.🔢 In a quiz-app flow, what comes right after “read a question”? (a) pick an answer (b) see if it is right (c) see the final score (d) tap “Start quiz”

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