App Dev Worksheet: Part 1 Test

App development lesson 8: What apps are: Part 1 test · Set 57 · 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.🗒️ Version 1 of a quiz app must be ready in 11 days. How many days are left for extras after the must-haves?
   show a question: 3 days
   check the answer: 1 days
   show the score: 4 days
2. 2.Which of these is an input? (a) sorting the scores (b) taking a photo (c) adding up a bill (d) a result on screen
3. 3.🔢 When you make an app, which comes LAST? (a) test the app (b) get an idea (c) build the app (d) release it
4. 4.🎯 What is a user need? (a) a colour theme (b) a type of button (c) a phone setting (d) a problem a user has
5. 5.Which of these is an input? (a) tap to go Next (b) a switch for dark mode (c) the log-in page (d) today’s step count
6. 6.Which of these is a feature? (a) a search bar (b) “Small text is hard” (c) “I forget my homework” (d) “I keep missing the bus”
7. 7.💡 How can you check that people really have the problem? (a) ask possible users (b) pick a colour (c) just guess (d) copy another app
8. 8.📊 Survey: which problem bugs you most? Which problem should your app solve first?
   wasting pocket money: 19 votes
   losing water bottles: 8 votes
   missing the bus: 6 votes (a) missing the bus (b) losing water bottles (c) wasting pocket money
9. 9.🗒️ When should nice-to-have features be built? (a) before anything (b) never (c) after the must-haves (d) on day one
10. 10.True or false: a medicine reminder solves no real problem. (a) True (b) False
11. 11.👥 A library app has 250 readers, 190 librarians and 30 volunteers as users. How many more librarians than volunteers are there?
12. 12.📊 Survey: which problem bugs you most? How many more votes did “wasting pocket money” get than “missing the bus”?
    missing the bus: 3 votes
    forgetting homework: 23 votes
    wasting pocket money: 17 votes
13. 13.True or false: a times-table quiz is a learning app. (a) False (b) True
14. 14.⚙️ Which line does the processing (works out the answer)?
    line 1: let price = 100; // 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 4 (b) line 1 (c) line 3 (d) line 2
15. 15.True or false: a pocket-money tracker is the best fit for a pupil juggling five projects. (a) False (b) True
16. 16.🗒️ You are planning version 1 of a pocket-money tracker. Which feature can WAIT for a later version? (a) add money spent (b) show the balance (c) export to a file (d) add money received
17. 17.📅 An app team plans for 4 days, builds for 8 days, tests for 2 days and releases on 1 more day. How many days does the whole project take?
18. 18.💡 Which app idea solves this problem: a team shares one snack bill? (a) a medicine reminder (b) a study-room finder (c) a homework planner (d) a bill splitter
19. 19.True or false: an alarm clock is a tool app. (a) False (b) True
20. 20.🧩 How many buttons does this app screen have?
    [title] Order Snacks
    [switch] Dark mode
    [button] Start
    [text box] Age
    [button] Send
    [text box] Phone
    [slider] Brightness
    [text box] City
    [button] Cancel
21. 21.⚙️ Which line does the processing (works out the answer)?
    line 1: let bill = 55; // typed by the user
    line 2: let friends = 5; // typed by the user
    line 3: let share = bill / friends;
    line 4: show(share); (a) line 3 (b) line 1 (c) line 4 (d) line 2
22. 22.Which of these happens at the idea stage? (a) let friends try it (b) write the code (c) connect the data (d) spot a problem to solve
23. 23.Which of these app ideas solves a real problem? (a) a page of random dots (b) a button with no action (c) a lost-and-found board (d) a blank grey screen
24. 24.🗒️ You are planning version 1 of a pocket-money tracker. Which feature can WAIT for a later version? (a) add money spent (b) show the balance (c) add money received (d) savings stickers
25. 25.Which of these is an output? (a) checking a password (b) a beep sound (c) working out a tip (d) adding up a bill
26. 26.📊 Survey: which problem bugs you most? Which problem should your app solve first?
    missing the bus: 7 votes
    forgetting birthdays: 11 votes
    wasting pocket money: 9 votes (a) wasting pocket money (b) missing the bus (c) forgetting birthdays
27. 27.True or false: an app is installed on a phone. (a) True (b) False
28. 28.True or false: tap to Save is a button. (a) False (b) True
29. 29.🔢 After an app is released, what comes right after “list what to fix”? (a) fix and improve (b) release an update (c) read user reviews (d) test it again
30. 30.True or false: a racing challenge is a learning app. (a) False (b) True
31. 31.🧩 Which input is best for choosing a volume level? (a) a title (b) a text box (c) a switch (d) a slider
32. 32.🔍 Which is the odd one out? (a) checking a password (b) typing your age (c) working out a tip (d) adding up a bill
33. 33.🧩 Which input is best for typing your name? (a) a switch (b) a text box (c) a slider (d) a picture
34. 34.🧩 How many buttons does this app screen have?
    [title] Order Snacks
    [text box] City
    [button] Start
    [button] Help
    [button] Next
35. 35.⚙️ In an app, is a pop-up message an input, processing or an output? (a) input (b) processing (c) output
36. 36.🔍 Which is the odd one out? (a) a pop-up message (b) typing your age (c) tapping a button (d) taking a photo
37. 37.💡 Does an app idea like a free study-room finder solve a real problem? (a) No (b) Yes
38. 38.🗒️ You are planning version 1 of a pocket-money tracker. Which feature is a MUST-HAVE? (a) pie-chart colours (b) savings stickers (c) export to a file (d) add money received
39. 39.⚙️ In an app, is checking a password an input, processing or an output? (a) output (b) input (c) processing
40. 40.🧩 Which of these is a button on this screen?
    [title] Order Snacks
    [text box] Phone
    [button] Done
    [text box] Email
    [slider] Volume (a) Email (b) Phone (c) Volume (d) Done

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