App Dev Worksheet: Part 1 Test

App development lesson 8: What apps are: Part 1 test · Set 834 · 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 line does the processing (works out the answer)?
   line 1: let km = 6; // typed by the user
   line 2: let metres = km * 1000;
   line 3: show(metres); (a) line 3 (b) line 1 (c) line 2
2. 2.🧩 Which input is best for turning something ON or OFF? (a) a switch (b) a text box (c) a slider (d) a title
3. 3.🗒️ A to-do app with no “add a task” feature is ___. (a) ready to release (b) a nice extra (c) missing a must-have (d) well planned
4. 4.🔢 When you make an app, what comes right after “test the app”? (a) release it (b) plan the screens (c) build the app (d) get an idea
5. 5.⚙️ What number does this app show?
   let km = 15; // typed by the user
   let metres = km * 1000;
   show(metres);
6. 6.🔍 Which is the odd one out? (a) a racing challenge (b) a puzzle with levels (c) a cricket run chase (d) a sleep tracker
7. 7.🗒️ You are planning version 1 of a homework planner. Which feature can WAIT for a later version? (a) set a due date (b) see tasks by day (c) share tasks to friends (d) add a homework task
8. 8.⚙️ Which line does the processing (works out the answer)?
   line 1: let price = 75; // typed by the user
   line 2: let qty = 5; // typed by the user
   line 3: let total = price * qty;
   line 4: show(total); (a) line 3 (b) line 1 (c) line 4 (d) line 2
9. 9.⚙️ In an app, is sorting the scores an input, processing or an output? (a) output (b) processing (c) input
10. 10.True or false: you add the buttons at the release stage. (a) True (b) False
11. 11.Which of these is a user need? (a) a reminder alarm (b) a search bar (c) “I forget my homework” (d) a share button
12. 12.🗂️ What kind of app is a word battle? (a) a tool app (b) a health app (c) a learning app (d) a game
13. 13.Which of these app ideas solves no real problem? (a) a page of random dots (b) a bill splitter (c) a free study-room finder (d) a library due-date alert
14. 14.True or false: you list what users need at the idea stage. (a) False (b) True
15. 15.👥 A library app has 115 readers, 275 librarians and 70 volunteers as users. Which user group is the biggest? (a) readers (b) volunteers (c) librarians
16. 16.True or false: a website has a web address. (a) False (b) True
17. 17.🛠️ At which stage do you write the code? (a) the test stage (b) the idea stage (c) the build stage (d) the release stage
18. 18.🔍 Which is the odd one out? (a) a beep sound (b) a pop-up message (c) taking a photo (d) a result on screen
19. 19.🗒️ You are planning version 1 of a water reminder. Which feature can WAIT for a later version? (a) see today’s total (b) log a glass of water (c) set a reminder time (d) water animations
20. 20.True or false: a water reminder is the best fit for a student who often misses the school bus. (a) False (b) True
21. 21.📲 What happens when you tap an app’s icon? (a) the app is deleted (b) the phone charges (c) the sound turns off (d) the app opens
22. 22.True or false: a page of random dots solves no real problem. (a) False (b) True
23. 23.🗒️ Version 1 of a water reminder must be ready in 11 days. How many days are left for extras after the must-haves?
    set a reminder time: 1 days
    log a glass of water: 3 days
    see today’s total: 5 days
24. 24.🗒️ You are planning version 1 of a homework planner. Which feature is a MUST-HAVE? (a) see tasks by day (b) pick a theme colour (c) earn stickers (d) share tasks to friends
25. 25.📱 Which one has a web address: an app or a website? (a) a website (b) an app
26. 26.Which of these happens at the plan stage? (a) write the store text (b) sketch the screens (c) try every button (d) write the code
27. 27.Which of these is an input? (a) a switch for dark mode (b) the log-in page (c) your friends list (d) today’s step count
28. 28.📅 An app team plans for 5 days, builds for 10 days, tests for 3 days and releases on 1 more day. How many days does the whole project take?
29. 29.⚙️ What number does this app show?
    let price = 75; // typed by the user
    let qty = 2; // typed by the user
    let total = price * qty;
    show(total);
30. 30.🌐 Which program do you need to open a website? (a) an app store (b) a calculator (c) a web browser (d) a camera app
31. 31.👥 A library app has 45 readers, 130 librarians and 245 volunteers as users. Which user group is the biggest? (a) readers (b) volunteers (c) librarians
32. 32.📊 Survey: which problem bugs you most? Which problem should your app solve first?
    forgetting birthdays: 14 votes
    forgetting homework: 16 votes
    losing water bottles: 3 votes (a) losing water bottles (b) forgetting homework (c) forgetting birthdays
33. 33.📊 Survey: which problem bugs you most? Which problem should your app solve first?
    missing the bus: 17 votes
    wasting pocket money: 23 votes
    forgetting birthdays: 18 votes (a) forgetting birthdays (b) missing the bus (c) wasting pocket money
34. 34.⚙️ 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);
35. 35.👥 A cricket club app has 75 players, 85 coaches and 145 fans as users. How many users does it have in all?
36. 36.📱 Where do people usually download phone apps from? (a) an app store (b) a web server (c) a charger (d) a printer
37. 37.🗒️ Why keep version 1 small? (a) to use up storage (b) to look bigger (c) to learn from users soon (d) to confuse users
38. 38.📊 Survey: which problem bugs you most? How many students voted in all?
    forgetting homework: 11 votes
    no quiet study place: 6 votes
    wasting pocket money: 24 votes
39. 39.🛠️ At which stage do you draw the user flow? (a) the build stage (b) the release stage (c) the idea stage (d) the plan stage
40. 40.True or false: the log-in page is a screen. (a) False (b) True

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