App Dev Worksheet: Part 1 Test

App development lesson 8: What apps are: Part 1 test · Set 338 · 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.⚙️ What number does this app show?
   let price = 150; // typed by the user
   let off = 40; // typed by the user
   let pay = price - off;
   show(pay);
2. 2.True or false: a slider for volume is an input. (a) True (b) False
3. 3.🗂️ What kind of app is a unit converter? (a) a learning app (b) a health app (c) a game (d) a tool app
4. 4.🗒️ Version 1 of a water reminder must be ready in 10 days. How many days are left for extras after the must-haves?
   set a reminder time: 4 days
   log a glass of water: 2 days
   see today’s total: 4 days
5. 5.🗂️ What kind of app is an alarm clock? (a) a health app (b) a game (c) a learning app (d) a tool app
6. 6.🗒️ You are planning version 1 of a quiz app. Which feature is a MUST-HAVE? (a) confetti effects (b) an avatar shop (c) show the score (d) background music
7. 7.📊 Survey: which problem bugs you most? How many students voted in all?
   forgetting birthdays: 9 votes
   forgetting homework: 4 votes
   no quiet study place: 14 votes
8. 8.True or false: your friends list is data. (a) True (b) False
9. 9.📊 Survey: which problem bugs you most? How many students voted in all?
   no quiet study place: 12 votes
   wasting pocket money: 10 votes
   losing water bottles: 20 votes
10. 10.⚙️ What number does this app show?
    let bill = 50; // typed by the user
    let friends = 2; // typed by the user
    let share = bill / friends;
    show(share);
11. 11.Which of these is an input? (a) your high score (b) a switch for dark mode (c) tap to Start (d) your friends list
12. 12.🧩 How many inputs (text boxes, switches and sliders) does this screen have?
    [title] Sign Up
    [switch] Dark mode
    [button] Next
    [button] Help
    [text box] City
13. 13.🔢 When you make an app, what comes right after “test the app”? (a) get an idea (b) build the app (c) plan the screens (d) release it
14. 14.👥 A school app has 245 students, 240 teachers and 145 parents as users. How many users does it have in all?
15. 15.📅 An app team plans for 4 days, builds for 4 days, tests for 2 days and releases on 1 more day. How many more days does building take than testing?
16. 16.💡 Does an app idea like a lost-and-found board solve a real problem? (a) Yes (b) No
17. 17.Which of these is an input? (a) a result on screen (b) typing your age (c) a pop-up message (d) a buzz (vibration)
18. 18.🔍 Which is the odd one out? (a) a water reminder (b) a times-table quiz (c) a step counter (d) a sleep tracker
19. 19.🗂️ What kind of app is a torch? (a) a tool app (b) a health app (c) a game (d) a learning app
20. 20.👥 A cricket club app has 135 players, 235 coaches and 60 fans as users. How many users does it have in all?
21. 21.🧩 In an app, what is a box to type a name? (a) a button (b) a screen (c) data (d) an input
22. 22.💡 Does an app idea like a medicine reminder solve a real problem? (a) No (b) Yes
23. 23.🔍 Which is the odd one out? (a) a times-table quiz (b) a unit converter (c) a flashcard trainer (d) a spelling coach
24. 24.True or false: the game-over page is a screen. (a) False (b) True
25. 25.📅 An app team plans for 2 days, builds for 11 days, tests for 2 days and releases on 1 more day. How many more days does building take than testing?
26. 26.🗒️ Version 1 of a bus tracker must be ready in 10 days. How many days are left for extras after the must-haves?
    see where the bus is: 2 days
    show arrival time: 1 days
    pick your bus stop: 5 days
27. 27.🛠️ At which stage do you spot a problem to solve? (a) the test stage (b) the idea stage (c) the release stage (d) the plan stage
28. 28.👥 A school app has 25 students, 230 teachers and 180 parents as users. Which user group is the biggest? (a) teachers (b) students (c) parents
29. 29.📊 Survey: which problem bugs you most? How many more votes did “wasting pocket money” get than “forgetting homework”?
    missing the bus: 22 votes
    forgetting homework: 11 votes
    wasting pocket money: 15 votes
30. 30.🎯 Is this a user need or a feature: a search bar? (a) a user need (b) a feature
31. 31.🗂️ What kind of app is a racing challenge? (a) a health app (b) a game (c) a tool app (d) a learning app
32. 32.🎯 Who are the users of an app? (a) the app icons (b) only the coders (c) only the testers (d) the people who use it
33. 33.📊 Survey: which problem bugs you most? Which problem should your app solve first?
    missing the bus: 8 votes
    wasting pocket money: 14 votes
    losing water bottles: 20 votes (a) wasting pocket money (b) losing water bottles (c) missing the bus
34. 34.🔍 Which is the odd one out? (a) adding up a bill (b) working out a tip (c) a pop-up message (d) sorting the scores
35. 35.🧩 What does a button do when you tap it? (a) shows the time (b) saves the battery (c) changes the phone (d) starts an action
36. 36.🔍 Which is the odd one out? (a) draw the user flow (b) sketch the screens (c) pick the features (d) list what users need
37. 37.🧩 In an app, what is tap to Start? (a) a screen (b) data (c) a button (d) an input
38. 38.🧩 Which of these is a button on this screen?
    [title] Settings
    [text box] Subject
    [button] Cancel
    [text box] Email
    [text box] Age
    [button] Start (a) Age (b) Subject (c) Start (d) Email
39. 39.📊 Survey: which problem bugs you most? Which problem should your app solve first?
    no quiet study place: 11 votes
    wasting pocket money: 10 votes
    forgetting homework: 7 votes (a) wasting pocket money (b) no quiet study place (c) forgetting homework
40. 40.🧩 Which of these is a button on this screen?
    [title] New Note
    [slider] Text size
    [text box] Notes
    [button] Send
    [switch] Remind me (a) Text size (b) Remind me (c) Send (d) Notes

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