App Dev Worksheet: Part 1 Test

App development lesson 8: What apps are: Part 1 test · Set 508 · 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 bill = 138; // typed by the user
   line 2: let friends = 2; // typed by the user
   line 3: let share = bill / friends;
   line 4: show(share); (a) line 3 (b) line 4 (c) line 1 (d) line 2
2. 2.🗒️ You are planning version 1 of a water reminder. Which feature is a MUST-HAVE? (a) custom alert sounds (b) share your streak (c) log a glass of water (d) water animations
3. 3.Which of these app ideas solves no real problem? (a) a medicine reminder (b) a library due-date alert (c) a button with no action (d) a bill splitter
4. 4.True or false: a medicine reminder solves a real problem. (a) True (b) False
5. 5.📲 What happens when you tap an app’s icon? (a) the app opens (b) the app is deleted (c) the phone charges (d) the sound turns off
6. 6.True or false: tap to Start is a screen. (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) a sleep tracker (b) a step counter (c) a water reminder (d) a flashcard trainer
8. 8.🧩 In an app, what is your friends list? (a) an input (b) a screen (c) a button (d) data
9. 9.💡 A good app idea starts with ___. (a) many colours (b) a cool logo (c) a problem to solve (d) a long name
10. 10.True or false: you write the code at the release stage. (a) False (b) True
11. 11.🗒️ You are planning version 1 of a homework planner. Which feature is a MUST-HAVE? (a) set a due date (b) share tasks to friends (c) pick a theme colour (d) earn stickers
12. 12.📱 The word “app” is short for ___. (a) apparatus (b) appointment (c) application (d) appetite
13. 13.True or false: a website updates from the store. (a) False (b) True
14. 14.⚙️ What number does this app show?
    let bill = 150; // typed by the user
    let friends = 2; // typed by the user
    let share = bill / friends;
    show(share);
15. 15.🧩 Which of these is a button on this screen?
    [title] Add Homework
    [switch] Dark mode
    [text box] Phone
    [text box] Age
    [button] Start
    [button] Next
    [text box] Email (a) Email (b) Age (c) Next (d) Phone
16. 16.📊 Survey: which problem bugs you most? How many students voted in all?
    losing water bottles: 7 votes
    forgetting homework: 17 votes
    forgetting birthdays: 5 votes
17. 17.True or false: a flashcard trainer is a learning app. (a) True (b) False
18. 18.Which of these is a button? (a) a date picker (b) today’s step count (c) a slider for volume (d) tap to Save
19. 19.Which of these is an output? (a) adding up a bill (b) typing your age (c) taking a photo (d) a buzz (vibration)
20. 20.🗒️ Version 1 of a pocket-money tracker must be ready in 9 days. How many days are left for extras after the must-haves?
    add money received: 2 days
    add money spent: 2 days
    show the balance: 4 days
21. 21.👥 A library app has 170 readers, 165 librarians and 175 volunteers as users. How many users does it have in all?
22. 22.💡 Does an app idea like a lost-and-found board solve a real problem? (a) No (b) Yes
23. 23.🔍 Which is the odd one out? (a) a cricket run chase (b) a word battle (c) a puzzle with levels (d) a unit converter
24. 24.🧩 In an app, what is the home page of an app? (a) an input (b) a button (c) a screen (d) data
25. 25.🔍 Which is the odd one out? (a) a step counter (b) an alarm clock (c) a water reminder (d) a sleep tracker
26. 26.True or false: a pop-up message is processing. (a) False (b) True
27. 27.💡 Which app idea solves this problem: nobody knows whose bag it is? (a) a medicine reminder (b) a homework planner (c) a lost-and-found board (d) a study-room finder
28. 28.True or false: you write down the bugs at the release stage. (a) True (b) False
29. 29.True or false: a times-table quiz is a learning app. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) a result on screen (b) adding up a bill (c) a pop-up message (d) a buzz (vibration)
31. 31.⚙️ Which line does the processing (works out the answer)?
    line 1: let km = 11; // typed by the user
    line 2: let metres = km * 1000;
    line 3: show(metres); (a) line 2 (b) line 3 (c) line 1
32. 32.True or false: your high score is a screen. (a) True (b) False
33. 33.🔢 After an app is released, which comes first: “list what to fix” or “release an update”? (a) release an update (b) list what to fix
34. 34.🧩 Which input is best for typing your name? (a) a picture (b) a text box (c) a switch (d) a slider
35. 35.🔢 When you make an app, which comes FIRST? (a) get an idea (b) build the app (c) test the app (d) plan the screens
36. 36.True or false: a lost-and-found board solves no real problem. (a) True (b) False
37. 37.🧩 How many buttons does this app screen have?
    [title] Order Snacks
    [button] Send
    [switch] Dark mode
    [button] Save
    [button] Cancel
    [text box] Email
    [text box] Name
38. 38.Which of these is an output? (a) sorting the scores (b) adding up a bill (c) a beep sound (d) checking a password
39. 39.🎯 Is this a user need or a feature: “I keep missing the bus”? (a) a user need (b) a feature
40. 40.🗒️ What is a must-have feature? (a) a nice extra (b) one the app cannot skip (c) a sound effect (d) a colour theme

Free app development lessons, practice and worksheets at talentjr.in/app-development-for-students