App Dev Worksheet: Part 1 Test

App development lesson 8: What apps are: Part 1 test · Set 516 · 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 input is best for choosing a volume level? (a) a slider (b) a title (c) a text box (d) a switch
2. 2.⚙️ Which line does the processing (works out the answer)?
   line 1: let bill = 72; // 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 4 (b) line 3 (c) line 1 (d) line 2
3. 3.🎯 Why learn about users before you build? (a) to pick a logo (b) to slow it down (c) to build what they need (d) to make it longer
4. 4.True or false: a box to type a name is a screen. (a) False (b) True
5. 5.💡 Which app idea solves this problem: pupils forget due dates? (a) a lost-and-found board (b) a bill splitter (c) a medicine reminder (d) a homework planner
6. 6.True or false: a website opens in a web browser. (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) sorting the scores (b) adding up a bill (c) checking a password (d) typing your age
8. 8.🗒️ In MVP, the M stands for ___. (a) maximum (b) mobile (c) music (d) minimum
9. 9.True or false: a torch is a tool app. (a) False (b) True
10. 10.⚙️ Which line does the processing (works out the answer)?
    line 1: let price = 25; // 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 2 (b) line 3 (c) line 4 (d) line 1
11. 11.True or false: a website is installed on a phone. (a) False (b) True
12. 12.🎯 Is this a user need or a feature: a reminder alarm? (a) a feature (b) a user need
13. 13.⚙️ Which line does the processing (works out the answer)?
    line 1: let price = 15; // typed by the user
    line 2: let qty = 6; // typed by the user
    line 3: let total = price * qty;
    line 4: show(total); (a) line 2 (b) line 1 (c) line 4 (d) line 3
14. 14.👥 A library app has 80 readers, 50 librarians and 75 volunteers as users. How many users does it have in all?
15. 15.📊 Survey: which problem bugs you most? Which problem should your app solve first?
    losing water bottles: 15 votes
    forgetting homework: 14 votes
    forgetting birthdays: 20 votes (a) forgetting homework (b) losing water bottles (c) forgetting birthdays
16. 16.⚙️ Which line does the processing (works out the answer)?
    line 1: let bill = 52; // 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 2 (b) line 3 (c) line 4 (d) line 1
17. 17.🛠️ At which stage do you add the buttons? (a) the idea stage (b) the plan stage (c) the build stage (d) the release stage
18. 18.🔍 Which is the odd one out? (a) tapping a button (b) speaking a command (c) working out a tip (d) taking a photo
19. 19.💡 How can you check that people really have the problem? (a) ask possible users (b) copy another app (c) pick a colour (d) just guess
20. 20.💡 Does an app idea like an app that just says hi solve a real problem? (a) No (b) Yes
21. 21.🧩 How many inputs (text boxes, switches and sliders) does this screen have?
    [title] Sign Up
    [button] Save
    [switch] Sound
    [text box] City
    [slider] Volume
    [button] Send
    [button] Cancel
    [text box] Name
    [text box] Notes
22. 22.🗒️ You are planning version 1 of a water reminder. Which feature can WAIT for a later version? (a) log a glass of water (b) set a reminder time (c) see today’s total (d) water animations
23. 23.True or false: tap to Send is a button. (a) False (b) True
24. 24.⚙️ In an app, is a pop-up message an input, processing or an output? (a) input (b) processing (c) output
25. 25.⚙️ What number does this app show?
    let price = 25; // typed by the user
    let qty = 6; // typed by the user
    let total = price * qty;
    show(total);
26. 26.🎯 Which app would help this user most: a teen whose money runs out by Friday? (a) a pocket-money tracker (b) a water reminder (c) a homework planner (d) a recipe finder
27. 27.⚙️ What number does this app show?
    let km = 5; // typed by the user
    let metres = km * 1000;
    show(metres);
28. 28.👥 A cricket club app has 95 players, 210 coaches and 105 fans as users. Which user group is the biggest? (a) players (b) fans (c) coaches
29. 29.🛠️ At which stage do you try every button? (a) the idea stage (b) the test stage (c) the build stage (d) the plan stage
30. 30.Which of these is data? (a) the game-over page (b) the log-in page (c) a box to type a name (d) today’s step count
31. 31.🗒️ Why keep version 1 small? (a) to learn from users soon (b) to confuse users (c) to look bigger (d) to use up storage
32. 32.True or false: you connect the data at the build stage. (a) False (b) True
33. 33.True or false: taking a photo is processing. (a) True (b) False
34. 34.📅 An app team plans for 5 days, builds for 10 days, tests for 2 days and releases on 1 more day. Planning starts on day 1. On which day does building finish?
35. 35.🔢 After an app is released, which comes FIRST? (a) read user reviews (b) fix and improve (c) release an update (d) test it again
36. 36.🧩 How many inputs (text boxes, switches and sliders) does this screen have?
    [title] Edit Profile
    [text box] Name
    [button] Send
    [slider] Brightness
    [text box] Email
37. 37.🗂️ What kind of app is a word battle? (a) a learning app (b) a tool app (c) a health app (d) a game
38. 38.🗒️ You are planning version 1 of a bus tracker. Which feature can WAIT for a later version? (a) see where the bus is (b) show arrival time (c) pick your bus stop (d) rate the driver
39. 39.🧩 How many buttons does this app screen have?
    [title] New Note
    [text box] Phone
    [button] Cancel
    [button] Start
    [switch] Dark mode
    [text box] Subject
    [text box] Age
40. 40.🧩 Which of these is a button on this screen?
    [title] Order Snacks
    [slider] Volume
    [button] Send
    [text box] City
    [button] Done
    [text box] Notes (a) City (b) Notes (c) Volume (d) Send

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