App Dev Worksheet: Part 1 Test

App development lesson 8: What apps are: Part 1 test · Set 916 · 40 questions

Developer's tip (Name the topic): First decide which topic the question is about. Use that lesson’s rule: count, order, match or work it out. Read every line of a screen or a code snippet before you answer.

1. 1.Which of these app ideas solves a real problem? (a) an app that just says hi (b) a blank grey screen (c) a medicine reminder (d) a page of random dots
2. 2.⚙️ What number does this app show?
   let price = 180; // typed by the user
   let off = 30; // typed by the user
   let pay = price - off;
   show(pay);
3. 3.⚙️ Which line does the processing (works out the answer)?
   line 1: let bill = 188; // typed by the user
   line 2: let friends = 4; // typed by the user
   line 3: let share = bill / friends;
   line 4: show(share); (a) line 2 (b) line 3 (c) line 1 (d) line 4
4. 4.⚙️ What number does this app show?
   let bill = 44; // typed by the user
   let friends = 4; // typed by the user
   let share = bill / friends;
   show(share);
5. 5.True or false: a calculator is a learning app. (a) False (b) True
6. 6.Which of these is a button? (a) tap to Save (b) your saved notes (c) your high score (d) the game-over page
7. 7.Which of these app ideas solves no real problem? (a) a blank grey screen (b) a medicine reminder (c) a bill splitter (d) a lost-and-found board
8. 8.🔍 Which is the odd one out? (a) a puzzle with levels (b) a cricket run chase (c) a word battle (d) a step counter
9. 9.True or false: a page of random dots solves a real problem. (a) True (b) False
10. 10.🗒️ You are planning version 1 of a pocket-money tracker. Which feature is a MUST-HAVE? (a) pie-chart colours (b) export to a file (c) savings stickers (d) show the balance
11. 11.👥 A clinic app has 255 patients, 40 doctors and 75 nurses as users. Which user group is the biggest? (a) patients (b) nurses (c) doctors
12. 12.👥 A library app has 70 readers, 170 librarians and 140 volunteers as users. Which user group is the biggest? (a) readers (b) volunteers (c) librarians
13. 13.🔢 When you make an app, which comes LAST? (a) release it (b) get an idea (c) plan the screens (d) build the app
14. 14.📱 Which one has a home-screen icon: an app or a website? (a) an app (b) a website
15. 15.True or false: you pick the features at the plan stage. (a) False (b) True
16. 16.📊 Survey: which problem bugs you most? Which problem should your app solve first?
    losing water bottles: 19 votes
    forgetting birthdays: 18 votes
    missing the bus: 13 votes (a) losing water bottles (b) missing the bus (c) forgetting birthdays
17. 17.📅 An app team plans for 2 days, builds for 5 days, tests for 3 days and releases on 1 more day. Planning starts on day 1. On which day does building finish?
18. 18.🔢 After an app is released, which comes first: “list what to fix” or “fix and improve”? (a) list what to fix (b) fix and improve
19. 19.🧩 How many buttons does this app screen have?
    [title] Add Homework
    [slider] Brightness
    [text box] Age
    [button] Cancel
    [button] Save
    [text box] City
20. 20.📅 An app team plans for 4 days, builds for 12 days, tests for 2 days and releases on 1 more day. How many more days does building take than testing?
21. 21.📊 Survey: which problem bugs you most? How many students voted in all?
    losing water bottles: 19 votes
    no quiet study place: 25 votes
    forgetting birthdays: 14 votes
22. 22.🗒️ You are planning version 1 of a pocket-money tracker. Which feature is a MUST-HAVE? (a) pie-chart colours (b) export to a file (c) add money spent (d) savings stickers
23. 23.Which of these is a button? (a) tap to go Next (b) the log-in page (c) a date picker (d) your high score
24. 24.📊 Survey: which problem bugs you most? How many more votes did “forgetting homework” get than “forgetting birthdays”?
    forgetting homework: 22 votes
    forgetting birthdays: 13 votes
    no quiet study place: 14 votes
25. 25.⚙️ What number does this app show?
    let price = 120; // typed by the user
    let off = 30; // typed by the user
    let pay = price - off;
    show(pay);
26. 26.🗒️ In MVP, the M stands for ___. (a) maximum (b) minimum (c) music (d) mobile
27. 27.True or false: a calculator is a game. (a) False (b) True
28. 28.👥 A cricket club app has 170 players, 260 coaches and 280 fans as users. How many users does it have in all?
29. 29.📅 An app team plans for 4 days, builds for 6 days, tests for 3 days and releases on 1 more day. How many days does the whole project take?
30. 30.💡 After a survey, which need should version 1 solve? (a) the rarest need (b) the newest trend (c) a random need (d) the most common need
31. 31.📅 An app team plans for 4 days, builds for 7 days, tests for 1 days and releases on 1 more day. How many more days does building take than testing?
32. 32.Which of these is true of a website? (a) has a home-screen icon (b) is installed on a phone (c) updates from the store (d) opens from a link
33. 33.True or false: a result on screen is an output. (a) False (b) True
34. 34.🗒️ Version 1 of a pocket-money tracker must be ready in 12 days. How many days are left for extras after the must-haves?
    add money received: 4 days
    add money spent: 3 days
    show the balance: 2 days
35. 35.True or false: a library due-date alert solves no real problem. (a) False (b) True
36. 36.🧩 Which of these is a button on this screen?
    [title] Sign Up
    [text box] Email
    [button] Start
    [text box] City (a) City (b) Email (c) Start
37. 37.📊 Survey: which problem bugs you most? How many students voted in all?
    no quiet study place: 23 votes
    wasting pocket money: 17 votes
    forgetting birthdays: 19 votes
38. 38.🗒️ You are planning version 1 of a pocket-money tracker. Which feature can WAIT for a later version? (a) add money spent (b) add money received (c) pie-chart colours (d) show the balance
39. 39.True or false: an app comes from an app store. (a) False (b) True
40. 40.💡 Which is a problem statement? (a) “Use blue buttons” (b) “Make it fast” (c) “Add a logo” (d) “Kids forget homework”

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