App Dev Worksheet: Part 1 Test

App development lesson 8: What apps are: Part 1 test · Set 726 · 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 price = 40; // 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 4 (b) line 3 (c) line 1 (d) line 2
2. 2.🧩 In an app, what is your friends list? (a) data (b) a button (c) an input (d) a screen
3. 3.🎯 Which app would help this user most: a student who often misses the school bus? (a) a water reminder (b) a homework planner (c) a big-text reader (d) a bus tracker
4. 4.📴 Which of these can often still work with no internet? (a) a new website (b) a video call (c) an installed app (d) an online search
5. 5.🧩 Which input is best for typing your name? (a) a switch (b) a picture (c) a slider (d) a text box
6. 6.Which of these is true of a website? (a) is installed on a phone (b) has a web address (c) has a home-screen icon (d) comes from an app store
7. 7.True or false: tap to Save is a button. (a) False (b) True
8. 8.Which of these is true of an app? (a) has a home-screen icon (b) opens from a link (c) opens in a web browser (d) needs no installing
9. 9.True or false: an app has a web address. (a) False (b) True
10. 10.⚙️ What number does this app show?
    let price = 25; // typed by the user
    let qty = 2; // typed by the user
    let total = price * qty;
    show(total);
11. 11.👥 A cricket club app has 140 players, 255 coaches and 95 fans as users. Which user group is the biggest? (a) coaches (b) fans (c) players
12. 12.⚙️ Which line does the processing (works out the answer)?
    line 1: let price = 160; // 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 1 (c) line 4 (d) line 2
13. 13.True or false: a water reminder is the best fit for a gamer who forgets to drink. (a) False (b) True
14. 14.Which of these is an input? (a) the settings page (b) a switch for dark mode (c) tap to go Next (d) the game-over page
15. 15.🔢 After an app is released, which comes FIRST? (a) read user reviews (b) fix and improve (c) test it again (d) list what to fix
16. 16.📱 Which one needs no installing: an app or a website? (a) a website (b) an app
17. 17.🛠️ At which stage do you share the download link? (a) the release stage (b) the build stage (c) the plan stage (d) the test stage
18. 18.⚙️ In an app, is a buzz (vibration) an input, processing or an output? (a) input (b) processing (c) output
19. 19.🧩 How many inputs (text boxes, switches and sliders) does this screen have?
    [title] Edit Profile
    [text box] Due date
    [text box] Phone
    [switch] Dark mode
    [button] Help
20. 20.🧩 Which of these is a button on this screen?
    [title] Edit Profile
    [button] Help
    [text box] Due date
    [text box] Phone
    [text box] Name (a) Phone (b) Due date (c) Help (d) Name
21. 21.🗒️ You are planning version 1 of a quiz app. Which feature can WAIT for a later version? (a) show the score (b) show a question (c) an avatar shop (d) check the answer
22. 22.🧩 In an app, what is your saved notes? (a) a button (b) a screen (c) data (d) an input
23. 23.📱 Which one is installed on a phone: an app or a website? (a) a website (b) an app
24. 24.🔍 Which is the odd one out? (a) a word battle (b) a cricket run chase (c) a spelling coach (d) a puzzle with levels
25. 25.📱 Which one has a home-screen icon: an app or a website? (a) a website (b) an app
26. 26.💡 How can you check that people really have the problem? (a) just guess (b) ask possible users (c) copy another app (d) pick a colour
27. 27.🧩 How many buttons does this app screen have?
    [title] Add Homework
    [text box] Notes
    [button] Done
    [slider] Text size
    [button] Help
    [button] Start
28. 28.⚙️ Which line does the processing (works out the answer)?
    line 1: let km = 2; // typed by the user
    line 2: let metres = km * 1000;
    line 3: show(metres); (a) line 3 (b) line 2 (c) line 1
29. 29.🔍 Which is the odd one out? (a) a flashcard trainer (b) a spelling coach (c) an alarm clock (d) a times-table quiz
30. 30.True or false: a slider for volume is data. (a) False (b) True
31. 31.⚙️ In an app, is sorting the scores an input, processing or an output? (a) input (b) processing (c) output
32. 32.🎯 Is this a user need or a feature: a dark mode switch? (a) a user need (b) a feature
33. 33.⚙️ What number does this app show?
    let bill = 141; // typed by the user
    let friends = 3; // typed by the user
    let share = bill / friends;
    show(share);
34. 34.📊 Survey: which problem bugs you most? Which problem should your app solve first?
    missing the bus: 17 votes
    forgetting birthdays: 13 votes
    wasting pocket money: 6 votes (a) forgetting birthdays (b) wasting pocket money (c) missing the bus
35. 35.🗒️ You are planning version 1 of a pocket-money tracker. Which feature can WAIT for a later version? (a) add money spent (b) add money received (c) export to a file (d) show the balance
36. 36.🗒️ You are planning version 1 of a pocket-money tracker. Which feature can WAIT for a later version? (a) add money spent (b) savings stickers (c) add money received (d) show the balance
37. 37.🗒️ You are planning version 1 of a water reminder. Which feature is a MUST-HAVE? (a) water animations (b) share your streak (c) custom alert sounds (d) see today’s total
38. 38.🔢 When you make an app, what comes right after “test the app”? (a) build the app (b) release it (c) get an idea (d) plan the screens
39. 39.🧩 How many buttons does this app screen have?
    [title] Settings
    [text box] City
    [text box] Subject
    [text box] Phone
    [slider] Brightness
    [button] Done
40. 40.🧩 How many inputs (text boxes, switches and sliders) does this screen have?
    [title] Sign Up
    [button] Cancel
    [text box] Subject
    [slider] Volume
    [text box] Phone
    [button] Next

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