App Dev Worksheet: Part 1 Test

App development lesson 8: What apps are: Part 1 test · Set 597 · 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.True or false: you write the code at the plan stage. (a) True (b) False
2. 2.📱 Which one comes from an app store: an app or a website? (a) a website (b) an app
3. 3.👥 A school app has 55 students, 185 teachers and 135 parents as users. How many users does it have in all?
4. 4.👥 A library app has 215 readers, 230 librarians and 150 volunteers as users. How many users does it have in all?
5. 5.🧩 What do we call one full page of an app? (a) a variable (b) a cable (c) a screen (d) a battery
6. 6.📊 Survey: which problem bugs you most? How many students voted in all?
   no quiet study place: 8 votes
   losing water bottles: 13 votes
   forgetting birthdays: 23 votes
7. 7.⚙️ Which line does the processing (works out the answer)?
   line 1: let bill = 120; // typed by the user
   line 2: let friends = 3; // typed by the user
   line 3: let share = bill / friends;
   line 4: show(share); (a) line 4 (b) line 2 (c) line 3 (d) line 1
8. 8.🗒️ Version 1 of a water reminder must be ready in 8 days. How many days are left for extras after the must-haves?
   set a reminder time: 1 days
   log a glass of water: 4 days
   see today’s total: 3 days
9. 9.🔢 After an app is released, which comes FIRST? (a) fix and improve (b) list what to fix (c) read user reviews (d) release an update
10. 10.📅 An app team plans for 3 days, builds for 4 days, tests for 2 days and releases on 1 more day. How many days does the whole project take?
11. 11.🗒️ You are planning version 1 of a pocket-money tracker. Which feature is a MUST-HAVE? (a) export to a file (b) savings stickers (c) add money received (d) pie-chart colours
12. 12.🔍 Which is the odd one out? (a) draw the user flow (b) sketch the screens (c) write down the bugs (d) pick the features
13. 13.⚙️ In an app, is checking a password an input, processing or an output? (a) input (b) output (c) processing
14. 14.🔍 Which is the odd one out? (a) a result on screen (b) working out a tip (c) checking a password (d) adding up a bill
15. 15.🧩 In an app, what is today’s step count? (a) an input (b) a button (c) a screen (d) data
16. 16.🔍 Which is the odd one out? (a) adding up a bill (b) a buzz (vibration) (c) a pop-up message (d) a result on screen
17. 17.🎯 An app for “everyone” with no clear user usually ___. (a) wins every prize (b) needs no testing (c) helps nobody well (d) is easy to build
18. 18.True or false: tapping a button is an input. (a) False (b) True
19. 19.⚙️ What number does this app show?
    let price = 310; // typed by the user
    let off = 50; // typed by the user
    let pay = price - off;
    show(pay);
20. 20.📊 Survey: which problem bugs you most? Which problem should your app solve first?
    forgetting homework: 3 votes
    forgetting birthdays: 5 votes
    losing water bottles: 20 votes (a) forgetting birthdays (b) losing water bottles (c) forgetting homework
21. 21.📅 An app team plans for 3 days, builds for 5 days, tests for 3 days and releases on 1 more day. How many more days does building take than testing?
22. 22.Which of these is true of an app? (a) has a home-screen icon (b) opens in a web browser (c) has a web address (d) opens from a link
23. 23.🔢 When you make an app, which comes first: “test the app” or “get an idea”? (a) get an idea (b) test the app
24. 24.🗒️ You are planning version 1 of a bus tracker. Which feature is a MUST-HAVE? (a) a dark mode (b) see where the bus is (c) change the bus icon (d) rate the driver
25. 25.Which of these happens at the release stage? (a) let friends try it (b) write the store text (c) spot a problem to solve (d) write down the bugs
26. 26.🎯 Is this a user need or a feature: a share button? (a) a feature (b) a user need
27. 27.🎯 Which app would help this user most: a pupil juggling five projects? (a) a water reminder (b) a homework planner (c) a recipe finder (d) a bus tracker
28. 28.📊 Survey: which problem bugs you most? How many more votes did “forgetting birthdays” get than “losing water bottles”?
    forgetting birthdays: 25 votes
    losing water bottles: 14 votes
    forgetting homework: 22 votes
29. 29.⚙️ What number does this app show?
    let price = 390; // typed by the user
    let off = 50; // typed by the user
    let pay = price - off;
    show(pay);
30. 30.🔍 Which is the odd one out? (a) a beep sound (b) speaking a command (c) tapping a button (d) taking a photo
31. 31.🎯 What is a user need? (a) a type of button (b) a problem a user has (c) a colour theme (d) a phone setting
32. 32.🧩 How many inputs (text boxes, switches and sliders) does this screen have?
    [title] Order Snacks
    [button] Next
    [button] Save
    [text box] Notes
    [text box] Subject
    [text box] Due date
33. 33.True or false: a medicine reminder solves no real problem. (a) True (b) False
34. 34.🗒️ The first small, working version of an app is often called an ___. (a) URL (b) CPU (c) MVP (d) FAQ
35. 35.Which of these is a feature? (a) a dark mode switch (b) “Small text is hard” (c) “I forget my homework” (d) “I keep missing the bus”
36. 36.🗒️ Version 1 of a pocket-money tracker must be ready in 10 days. How many days are left for extras after the must-haves?
    add money received: 1 days
    add money spent: 2 days
    show the balance: 5 days
37. 37.📊 Survey: which problem bugs you most? Which problem should your app solve first?
    forgetting homework: 13 votes
    losing water bottles: 21 votes
    missing the bus: 6 votes (a) missing the bus (b) forgetting homework (c) losing water bottles
38. 38.🗒️ You are planning version 1 of a quiz app. Which feature is a MUST-HAVE? (a) check the answer (b) background music (c) an avatar shop (d) confetti effects
39. 39.Which of these is a button? (a) tap to Save (b) the settings page (c) the home page of an app (d) a switch for dark mode
40. 40.🧩 How many buttons does this app screen have?
    [title] Edit Profile
    [switch] Remind me
    [text box] Name
    [slider] Text size
    [button] Save
    [text box] Phone

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