App Dev Worksheet: Part 1 Test

App development lesson 8: What apps are: Part 1 test · Set 991 · 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 of these is a button on this screen?
   [title] Settings
   [button] Cancel
   [text box] City
   [slider] Brightness
   [button] Help
   [switch] Remind me (a) Brightness (b) Remind me (c) City (d) Cancel
2. 2.📊 Survey: which problem bugs you most? Which problem should your app solve first?
   forgetting homework: 4 votes
   forgetting birthdays: 9 votes
   missing the bus: 20 votes (a) forgetting birthdays (b) missing the bus (c) forgetting homework
3. 3.True or false: a homework planner is the best fit for a parent waiting at the bus stop. (a) False (b) True
4. 4.🎯 An app for “everyone” with no clear user usually ___. (a) is easy to build (b) needs no testing (c) helps nobody well (d) wins every prize
5. 5.📊 Survey: which problem bugs you most? How many more votes did “forgetting homework” get than “missing the bus”?
   missing the bus: 13 votes
   forgetting homework: 25 votes
   losing water bottles: 6 votes
6. 6.🔍 Which is the odd one out? (a) checking a password (b) a buzz (vibration) (c) adding up a bill (d) sorting the scores
7. 7.⚙️ What number does this app show?
   let km = 3; // typed by the user
   let metres = km * 1000;
   show(metres);
8. 8.🧩 Which of these is a button on this screen?
   [title] Sign Up
   [text box] Age
   [text box] Email
   [text box] Name
   [switch] Show hints
   [slider] Volume
   [button] Save (a) Age (b) Email (c) Save (d) Name
9. 9.📊 Survey: which problem bugs you most? How many more votes did “losing water bottles” get than “missing the bus”?
   wasting pocket money: 20 votes
   losing water bottles: 13 votes
   missing the bus: 11 votes
10. 10.⚙️ Which line does the processing (works out the answer)?
    line 1: let price = 15; // 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 1 (b) line 3 (c) line 4 (d) line 2
11. 11.🗒️ Why keep version 1 small? (a) to use up storage (b) to confuse users (c) to look bigger (d) to learn from users soon
12. 12.🗒️ 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) pick a theme colour (d) add a homework task
13. 13.🗒️ You are planning version 1 of a quiz app. Which feature can WAIT for a later version? (a) show the score (b) check the answer (c) background music (d) show a question
14. 14.🔍 Which is the odd one out? (a) add the buttons (b) write the code (c) pick the features (d) connect the data
15. 15.🧩 Scores, notes and settings that an app keeps are called ___. (a) data (b) screens (c) tabs (d) buttons
16. 16.⚙️ What number does this app show?
    let bill = 204; // typed by the user
    let friends = 3; // typed by the user
    let share = bill / friends;
    show(share);
17. 17.True or false: you spot a problem to solve at the idea stage. (a) False (b) True
18. 18.🧩 In an app, what is tap to Save? (a) data (b) a button (c) a screen (d) an input
19. 19.Which of these app ideas solves a real problem? (a) a button with no action (b) a blank grey screen (c) a lost-and-found board (d) an app that just says hi
20. 20.📊 Survey: which problem bugs you most? How many more votes did “missing the bus” get than “forgetting homework”?
    missing the bus: 15 votes
    forgetting birthdays: 11 votes
    forgetting homework: 5 votes
21. 21.True or false: your high score is a screen. (a) True (b) False
22. 22.💡 Which is a problem statement? (a) “Make it fast” (b) “Use blue buttons” (c) “Add a logo” (d) “Kids forget homework”
23. 23.Which of these is an input? (a) typing your age (b) a pop-up message (c) a result on screen (d) a buzz (vibration)
24. 24.🗒️ Version 1 of a quiz app must be ready in 9 days. How many days are left for extras after the must-haves?
    show a question: 1 days
    check the answer: 1 days
    show the score: 5 days
25. 25.🛠️ At which stage do you pick the features? (a) the plan stage (b) the build stage (c) the idea stage (d) the release stage
26. 26.🗒️ You are planning version 1 of a pocket-money tracker. Which feature can WAIT for a later version? (a) add money received (b) add money spent (c) pie-chart colours (d) show the balance
27. 27.🧩 In an app, what is a date picker? (a) data (b) a button (c) an input (d) a screen
28. 28.💡 Does an app idea like a library due-date alert solve a real problem? (a) Yes (b) No
29. 29.💡 Which app idea solves this problem: projects pile up at once? (a) a lost-and-found board (b) a bill splitter (c) a homework planner (d) a study-room finder
30. 30.🔍 Which is the odd one out? (a) a water reminder (b) a times-table quiz (c) a flashcard trainer (d) a spelling coach
31. 31.Which of these is processing? (a) sorting the scores (b) typing your age (c) a beep sound (d) tapping a button
32. 32.🧩 Which input is best for choosing a volume level? (a) a switch (b) a text box (c) a title (d) a slider
33. 33.🧩 How many buttons does this app screen have?
    [title] Add Homework
    [text box] Name
    [button] Start
    [button] Save
    [button] Send
    [text box] Email
34. 34.⚙️ In an app, is a beep sound an input, processing or an output? (a) processing (b) output (c) input
35. 35.📅 An app team plans for 5 days, builds for 4 days, tests for 1 days and releases on 1 more day. How many more days does building take than testing?
36. 36.🗒️ A to-do app with no “add a task” feature is ___. (a) a nice extra (b) missing a must-have (c) ready to release (d) well planned
37. 37.🧩 How many inputs (text boxes, switches and sliders) does this screen have?
    [title] Add Homework
    [text box] Email
    [switch] Remind me
    [button] Start
    [text box] Name
    [button] Next
    [slider] Brightness
38. 38.🎯 Is this a user need or a feature: a search bar? (a) a feature (b) a user need
39. 39.🧩 What do we call one full page of an app? (a) a variable (b) a cable (c) a battery (d) a screen
40. 40.True or false: speaking a command is an output. (a) False (b) True

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