App Dev Worksheet: Part 1 Test

App development lesson 8: What apps are: Part 1 test · Set 107 · 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 spot a problem to solve at the idea stage. (a) False (b) True
2. 2.Which of these app ideas solves a real problem? (a) a free study-room finder (b) an app that just says hi (c) a button with no action (d) a blank grey screen
3. 3.True or false: a website has a web address. (a) False (b) True
4. 4.True or false: a big-text reader is the best fit for a parent waiting at the bus stop. (a) True (b) False
5. 5.True or false: a button with no action solves a real problem. (a) True (b) False
6. 6.🗒️ You are planning version 1 of a bus tracker. Which feature is a MUST-HAVE? (a) a dark mode (b) change the bus icon (c) see where the bus is (d) rate the driver
7. 7.🗒️ Version 1 of a homework planner must be ready in 13 days. How many days are left for extras after the must-haves?
   add a homework task: 4 days
   set a due date: 2 days
   see tasks by day: 5 days
8. 8.True or false: a blank grey screen solves no real problem. (a) False (b) True
9. 9.📅 An app team plans for 3 days, builds for 7 days, tests for 2 days and releases on 1 more day. How many days does the whole project take?
10. 10.🔔 What is a message an app shows on your lock screen called? (a) a variable (b) a wireframe (c) a web address (d) a notification
11. 11.🎯 An app for “everyone” with no clear user usually ___. (a) is easy to build (b) wins every prize (c) helps nobody well (d) needs no testing
12. 12.🗂️ What kind of app is a puzzle with levels? (a) a tool app (b) a game (c) a health app (d) a learning app
13. 13.🧩 Which of these is a button on this screen?
    [title] Add Homework
    [slider] Volume
    [button] Cancel
    [text box] Name
    [button] Help (a) Name (b) Help (c) Volume
14. 14.True or false: a recipe finder is the best fit for a child saving up for a cycle. (a) False (b) True
15. 15.True or false: a blank grey screen solves a real problem. (a) False (b) True
16. 16.👥 A clinic app has 145 patients, 185 doctors and 40 nurses as users. Which user group is the biggest? (a) doctors (b) patients (c) nurses
17. 17.⚙️ Which line does the processing (works out the answer)?
    line 1: let price = 10; // typed by the user
    line 2: let qty = 4; // typed by the user
    line 3: let total = price * qty;
    line 4: show(total); (a) line 3 (b) line 2 (c) line 4 (d) line 1
18. 18.Which of these is a button? (a) the home page of an app (b) your high score (c) the log-in page (d) tap to Save
19. 19.Which of these is true of an app? (a) has a web address (b) opens in a web browser (c) has a home-screen icon (d) needs no installing
20. 20.📱 Which one needs no installing: an app or a website? (a) a website (b) an app
21. 21.True or false: you write the code at the build stage. (a) True (b) False
22. 22.🧩 In an app, what is your friends list? (a) a screen (b) a button (c) data (d) an input
23. 23.🎯 Who are the users of an app? (a) the app icons (b) the people who use it (c) only the coders (d) only the testers
24. 24.🗒️ A to-do app with no “add a task” feature is ___. (a) a nice extra (b) ready to release (c) well planned (d) missing a must-have
25. 25.🔍 Which is the odd one out? (a) talk to possible users (b) list what users need (c) pick the features (d) spot a problem to solve
26. 26.⚙️ In an app, is speaking a command an input, processing or an output? (a) input (b) output (c) processing
27. 27.🧩 Which of these is a button on this screen?
    [title] Edit Profile
    [button] Done
    [button] Cancel
    [text box] Phone
    [button] Help (a) Phone (b) Cancel
28. 28.⚙️ What number does this app show?
    let price = 70; // typed by the user
    let qty = 5; // typed by the user
    let total = price * qty;
    show(total);
29. 29.⚙️ Which line does the processing (works out the answer)?
    line 1: let price = 410; // typed by the user
    line 2: let off = 10; // typed by the user
    line 3: let pay = price - off;
    line 4: show(pay); (a) line 2 (b) line 1 (c) line 4 (d) line 3
30. 30.🧩 Which input is best for turning something ON or OFF? (a) a slider (b) a title (c) a text box (d) a switch
31. 31.👥 A clinic app has 275 patients, 290 doctors and 50 nurses as users. How many more doctors than patients are there?
32. 32.🧩 Which of these is a button on this screen?
    [title] Add Homework
    [button] Send
    [button] Save
    [switch] Sound
    [slider] Volume
    [text box] Age
    [text box] Notes (a) Age (b) Notes (c) Send (d) Sound
33. 33.⚙️ In an app, is a pop-up message an input, processing or an output? (a) processing (b) input (c) output
34. 34.🧩 Which of these is a button on this screen?
    [title] Sign Up
    [button] Cancel
    [switch] Dark mode
    [button] Next
    [text box] Phone
    [button] Save (a) Save (b) Dark mode (c) Phone
35. 35.🗒️ When should nice-to-have features be built? (a) before anything (b) never (c) on day one (d) after the must-haves
36. 36.📊 Survey: which problem bugs you most? How many more votes did “forgetting homework” get than “no quiet study place”?
    no quiet study place: 8 votes
    forgetting birthdays: 10 votes
    forgetting homework: 21 votes
37. 37.📊 Survey: which problem bugs you most? How many students voted in all?
    forgetting homework: 15 votes
    missing the bus: 14 votes
    forgetting birthdays: 6 votes
38. 38.True or false: tap to Start is data. (a) True (b) False
39. 39.💡 Does an app idea like a button with no action solve a real problem? (a) No (b) Yes
40. 40.🔍 Which is the odd one out? (a) working out a tip (b) sorting the scores (c) adding up a bill (d) a beep sound

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