App Dev Worksheet: Part 1 Test

App development lesson 8: What apps are: Part 1 test · Set 256 · 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.🔢 When you make an app, what comes right after “plan the screens”? (a) test the app (b) get an idea (c) release it (d) build the app
2. 2.🗒️ Version 1 of a homework planner must be ready in 12 days. How many days are left for extras after the must-haves?
   add a homework task: 1 days
   set a due date: 4 days
   see tasks by day: 2 days
3. 3.Which of these is a feature? (a) “Small text is hard” (b) a share button (c) “I keep missing the bus” (d) “I forget my homework”
4. 4.👥 A cricket club app has 40 players, 95 coaches and 110 fans as users. How many users does it have in all?
5. 5.⚙️ Which line does the processing (works out the answer)?
   line 1: let bill = 106; // 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 1 (c) line 3 (d) line 4
6. 6.⚙️ Which line does the processing (works out the answer)?
   line 1: let bill = 162; // typed by the user
   line 2: let friends = 3; // typed by the user
   line 3: let share = bill / friends;
   line 4: show(share); (a) line 4 (b) line 2 (c) line 3 (d) line 1
7. 7.🔍 Which is the odd one out? (a) a calculator (b) a torch (c) an alarm clock (d) a times-table quiz
8. 8.🧩 How many buttons does this app screen have?
   [title] New Note
   [text box] Subject
   [slider] Brightness
   [switch] Dark mode
   [text box] Name
   [button] Help
   [button] Done
9. 9.📅 An app team plans for 4 days, builds for 10 days, tests for 3 days and releases on 1 more day. How many days does the whole project take?
10. 10.Which of these is true of an app? (a) opens in a web browser (b) needs no installing (c) has a home-screen icon (d) opens from a link
11. 11.Which of these is an output? (a) typing your age (b) a beep sound (c) checking a password (d) adding up a bill
12. 12.True or false: tap to go Next is a button. (a) False (b) True
13. 13.⚙️ In an app, is tapping a button an input, processing or an output? (a) output (b) processing (c) input
14. 14.True or false: you talk to possible users at the idea stage. (a) False (b) True
15. 15.True or false: the game-over page is a button. (a) False (b) True
16. 16.⚙️ Which line does the processing (works out the answer)?
    line 1: let price = 360; // 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
17. 17.🛠️ At which stage do you spot a problem to solve? (a) the idea stage (b) the build stage (c) the plan stage (d) the test stage
18. 18.Which of these is a user need? (a) “What should I cook?” (b) a reminder alarm (c) a search bar (d) a dark mode switch
19. 19.Which of these is an input? (a) a buzz (vibration) (b) checking a password (c) a beep sound (d) taking a photo
20. 20.⚙️ Which line does the processing (works out the answer)?
    line 1: let price = 560; // typed by the user
    line 2: let off = 50; // typed by the user
    line 3: let pay = price - off;
    line 4: show(pay); (a) line 1 (b) line 2 (c) line 4 (d) line 3
21. 21.True or false: a sleep tracker is a learning app. (a) True (b) False
22. 22.⚙️ Which line does the processing (works out the answer)?
    line 1: let bill = 240; // typed by the user
    line 2: let friends = 3; // typed by the user
    line 3: let share = bill / friends;
    line 4: show(share); (a) line 1 (b) line 2 (c) line 4 (d) line 3
23. 23.⚙️ What number does this app show?
    let km = 10; // typed by the user
    let metres = km * 1000;
    show(metres);
24. 24.⚙️ In an app, is adding up a bill an input, processing or an output? (a) processing (b) output (c) input
25. 25.🛠️ At which stage do you talk to possible users? (a) the test stage (b) the plan stage (c) the build stage (d) the idea stage
26. 26.Which of these is a user need? (a) “I forget my homework” (b) a dark mode switch (c) a reminder alarm (d) a share button
27. 27.True or false: a big-text reader is the best fit for a grandparent with weak eyesight. (a) True (b) False
28. 28.👥 A school app has 155 students, 280 teachers and 135 parents as users. How many users does it have in all?
29. 29.True or false: a lost-and-found board solves no real problem. (a) True (b) False
30. 30.👥 A clinic app has 160 patients, 295 doctors and 20 nurses as users. How many users does it have in all?
31. 31.True or false: speaking a command is an output. (a) False (b) True
32. 32.⚙️ Which line does the processing (works out the answer)?
    line 1: let price = 370; // typed by the user
    line 2: let off = 40; // typed by the user
    line 3: let pay = price - off;
    line 4: show(pay); (a) line 3 (b) line 2 (c) line 1 (d) line 4
33. 33.🗒️ Version 1 of a bus tracker must be ready in 13 days. How many days are left for extras after the must-haves?
    see where the bus is: 4 days
    show arrival time: 1 days
    pick your bus stop: 5 days
34. 34.🎯 Is this a user need or a feature: “I keep missing the bus”? (a) a user need (b) a feature
35. 35.🎯 Who are the users of an app? (a) the app icons (b) only the testers (c) the people who use it (d) only the coders
36. 36.💡 Does an app idea like a lost-and-found board solve a real problem? (a) Yes (b) No
37. 37.🗒️ 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) export to a file (d) show the balance
38. 38.🗒️ Version 1 of a homework planner must be ready in 12 days. How many days are left for extras after the must-haves?
    add a homework task: 3 days
    set a due date: 2 days
    see tasks by day: 2 days
39. 39.🧩 In an app, what is the game-over page? (a) a screen (b) a button (c) data (d) an input
40. 40.⚙️ In an app, is typing your age an input, processing or an output? (a) input (b) processing (c) output

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