App Dev Worksheet: Part 1 Test

App development lesson 8: What apps are: Part 1 test · Set 891 · 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.🗒️ 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: 3 days
   add money spent: 4 days
   show the balance: 5 days
2. 2.💡 A good app idea starts with ___. (a) a cool logo (b) a problem to solve (c) a long name (d) many colours
3. 3.⚙️ What number does this app show?
   let bill = 335; // typed by the user
   let friends = 5; // typed by the user
   let share = bill / friends;
   show(share);
4. 4.🗒️ Version 1 of a homework planner must be ready in 17 days. How many days are left for extras after the must-haves?
   add a homework task: 4 days
   set a due date: 4 days
   see tasks by day: 5 days
5. 5.🧩 How many buttons does this app screen have?
   [title] Sign Up
   [text box] Age
   [switch] Sound
   [button] Done
   [button] Send
   [slider] Volume
6. 6.💡 Which app idea solves this problem: friends argue over who pays? (a) a homework planner (b) a lost-and-found board (c) a bill splitter (d) a medicine reminder
7. 7.Which of these app ideas solves a real problem? (a) a free study-room finder (b) an app that just says hi (c) a blank grey screen (d) a button with no action
8. 8.🛠️ At which stage do you sketch the screens? (a) the release stage (b) the test stage (c) the idea stage (d) the plan stage
9. 9.📊 Survey: which problem bugs you most? Which problem should your app solve first?
   forgetting birthdays: 17 votes
   no quiet study place: 9 votes
   forgetting homework: 15 votes (a) no quiet study place (b) forgetting homework (c) forgetting birthdays
10. 10.🧩 Which part lets the user give the app information? (a) an input (b) a title (c) a logo (d) an icon
11. 11.🔍 Which is the odd one out? (a) a times-table quiz (b) a word battle (c) a puzzle with levels (d) a cricket run chase
12. 12.Which of these is a screen? (a) your saved notes (b) a date picker (c) your friends list (d) the settings page
13. 13.🧩 How many inputs (text boxes, switches and sliders) does this screen have?
    [title] Settings
    [button] Save
    [text box] Notes
    [button] Help
    [text box] City
14. 14.📱 Which one has a home-screen icon: an app or a website? (a) an app (b) a website
15. 15.⚙️ What number does this app show?
    let price = 480; // typed by the user
    let off = 30; // typed by the user
    let pay = price - off;
    show(pay);
16. 16.Which of these app ideas solves a real problem? (a) a library due-date alert (b) an app that just says hi (c) a button with no action (d) a blank grey screen
17. 17.🗒️ The first small, working version of an app is often called an ___. (a) MVP (b) URL (c) FAQ (d) CPU
18. 18.🧩 In an app, what is today’s step count? (a) data (b) a button (c) an input (d) a screen
19. 19.🎯 Who are the users of an app? (a) only the coders (b) the app icons (c) the people who use it (d) only the testers
20. 20.🔍 Which is the odd one out? (a) a puzzle with levels (b) a racing challenge (c) a calculator (d) a cricket run chase
21. 21.⚙️ Which line does the processing (works out the answer)?
    line 1: let km = 4; // typed by the user
    line 2: let metres = km * 1000;
    line 3: show(metres); (a) line 1 (b) line 2 (c) line 3
22. 22.True or false: you add the buttons at the test stage. (a) False (b) True
23. 23.True or false: checking a password is an output. (a) True (b) False
24. 24.👥 A cricket club app has 45 players, 30 coaches and 230 fans as users. How many users does it have in all?
25. 25.🗒️ You are planning version 1 of a pocket-money tracker. Which feature is a MUST-HAVE? (a) add money spent (b) export to a file (c) savings stickers (d) pie-chart colours
26. 26.⚙️ What number does this app show?
    let price = 180; // typed by the user
    let off = 40; // typed by the user
    let pay = price - off;
    show(pay);
27. 27.🧩 Which of these is a button on this screen?
    [title] Settings
    [slider] Text size
    [text box] City
    [text box] Name
    [button] Send
    [button] Cancel (a) Text size (b) Name (c) Cancel (d) City
28. 28.True or false: a lost-and-found board solves a real problem. (a) True (b) False
29. 29.💡 Which app idea solves this problem: Grandpa forgets his tablets? (a) a homework planner (b) a medicine reminder (c) a lost-and-found board (d) a study-room finder
30. 30.🧩 How many buttons does this app screen have?
    [title] Sign Up
    [text box] Subject
    [slider] Volume
    [button] Next
    [button] Help
    [text box] Age
    [button] Save
31. 31.🗒️ When should nice-to-have features be built? (a) after the must-haves (b) before anything (c) on day one (d) never
32. 32.📴 Which of these can often still work with no internet? (a) a new website (b) an installed app (c) a video call (d) an online search
33. 33.Which of these is a screen? (a) your friends list (b) tap to go Next (c) tap to Send (d) the log-in page
34. 34.🗂️ What kind of app is a times-table quiz? (a) a game (b) a learning app (c) a health app (d) a tool app
35. 35.True or false: a button with no action solves a real problem. (a) True (b) False
36. 36.🧩 In an app, what is the settings page? (a) data (b) an input (c) a screen (d) a button
37. 37.📊 Survey: which problem bugs you most? How many students voted in all?
    no quiet study place: 4 votes
    wasting pocket money: 21 votes
    forgetting birthdays: 13 votes
38. 38.🧩 How many inputs (text boxes, switches and sliders) does this screen have?
    [title] New Note
    [button] Next
    [text box] Phone
39. 39.⚙️ Which line does the processing (works out the answer)?
    line 1: let bill = 275; // typed by the user
    line 2: let friends = 5; // typed by the user
    line 3: let share = bill / friends;
    line 4: show(share); (a) line 2 (b) line 1 (c) line 3 (d) line 4
40. 40.Which of these is an input? (a) adding up a bill (b) taking a photo (c) a beep sound (d) a pop-up message

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