App Dev Worksheet: Part 1 Test

App development lesson 8: What apps are: Part 1 test · Set 918 · 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.👥 A cricket club app has 140 players, 120 coaches and 50 fans as users. Which user group is the biggest? (a) players (b) coaches (c) fans
2. 2.👥 A school app has 60 students, 190 teachers and 90 parents as users. Which user group is the biggest? (a) parents (b) students (c) teachers
3. 3.⚙️ In an app, is taking a photo an input, processing or an output? (a) input (b) output (c) processing
4. 4.🔍 Which is the odd one out? (a) a water reminder (b) a sleep tracker (c) a step counter (d) a puzzle with levels
5. 5.📴 Which of these can often still work with no internet? (a) an installed app (b) a new website (c) an online search (d) a video call
6. 6.🛠️ At which stage do you spot a problem to solve? (a) the test stage (b) the idea stage (c) the plan stage (d) the release stage
7. 7.🧩 In an app, what is a switch for dark mode? (a) a button (b) an input (c) a screen (d) data
8. 8.🗒️ 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: 3 days
   show arrival time: 4 days
   pick your bus stop: 5 days
9. 9.🗒️ You are planning version 1 of a bus tracker. Which feature is a MUST-HAVE? (a) pick your bus stop (b) change the bus icon (c) rate the driver (d) a dark mode
10. 10.🗒️ You are planning version 1 of a bus tracker. Which feature can WAIT for a later version? (a) show arrival time (b) see where the bus is (c) pick your bus stop (d) a dark mode
11. 11.True or false: you connect the data at the release stage. (a) False (b) True
12. 12.📊 Survey: which problem bugs you most? How many students voted in all?
    missing the bus: 7 votes
    no quiet study place: 12 votes
    wasting pocket money: 4 votes
13. 13.🔍 Which is the odd one out? (a) add the buttons (b) write the code (c) connect the data (d) list what users need
14. 14.True or false: a water reminder is the best fit for a runner who forgets to sip water. (a) False (b) True
15. 15.True or false: taking a photo is an input. (a) True (b) False
16. 16.True or false: tapping a button is an input. (a) False (b) True
17. 17.👥 A library app has 130 readers, 285 librarians and 55 volunteers as users. How many users does it have in all?
18. 18.🔍 Which is the odd one out? (a) let friends try it (b) write the store text (c) share the download link (d) put it on an app store
19. 19.💡 How can you check that people really have the problem? (a) pick a colour (b) just guess (c) copy another app (d) ask possible users
20. 20.🗒️ You are planning version 1 of a pocket-money tracker. Which feature can WAIT for a later version? (a) add money received (b) export to a file (c) add money spent (d) show the balance
21. 21.⚙️ 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 1 (c) line 4 (d) line 3
22. 22.📊 Survey: which problem bugs you most? Which problem should your app solve first?
    wasting pocket money: 8 votes
    no quiet study place: 12 votes
    losing water bottles: 25 votes (a) no quiet study place (b) wasting pocket money (c) losing water bottles
23. 23.True or false: a button with no action solves no real problem. (a) False (b) True
24. 24.🧩 How many inputs (text boxes, switches and sliders) does this screen have?
    [title] Add Homework
    [text box] Due date
    [button] Cancel
    [button] Help
25. 25.True or false: tapping a button is an output. (a) False (b) True
26. 26.⚙️ What number does this app show?
    let price = 360; // typed by the user
    let off = 50; // typed by the user
    let pay = price - off;
    show(pay);
27. 27.🧩 Which input is best for choosing a volume level? (a) a title (b) a text box (c) a switch (d) a slider
28. 28.⚙️ Which line does the processing (works out the answer)?
    line 1: let price = 290; // 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 3 (b) line 1 (c) line 4 (d) line 2
29. 29.🧩 How many buttons does this app screen have?
    [title] Add Homework
    [button] Send
    [text box] Subject
    [slider] Brightness
    [text box] City
    [switch] Dark mode
    [button] Start
    [button] Done
    [text box] Email
30. 30.True or false: you connect the data at the idea stage. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) write the store text (b) try every button (c) share the download link (d) put it on an app store
32. 32.True or false: adding up a bill is an output. (a) False (b) True
33. 33.👥 A library app has 185 readers, 190 librarians and 95 volunteers as users. How many more readers than volunteers are there?
34. 34.Which of these is an output? (a) a beep sound (b) working out a tip (c) taking a photo (d) checking a password
35. 35.🗒️ You are planning version 1 of a bus tracker. Which feature is a MUST-HAVE? (a) see where the bus is (b) rate the driver (c) a dark mode (d) change the bus icon
36. 36.📱 Where do people usually download phone apps from? (a) a web server (b) a printer (c) an app store (d) a charger
37. 37.💡 Which app idea solves this problem: nobody knows whose bag it is? (a) a medicine reminder (b) a bill splitter (c) a lost-and-found board (d) a study-room finder
38. 38.🧩 How many inputs (text boxes, switches and sliders) does this screen have?
    [title] Sign Up
    [button] Start
    [slider] Brightness
    [text box] Phone
    [button] Help
    [switch] Sound
39. 39.🔍 Which is the odd one out? (a) a times-table quiz (b) an alarm clock (c) a flashcard trainer (d) a spelling coach
40. 40.🎯 Why learn about users before you build? (a) to make it longer (b) to build what they need (c) to pick a logo (d) to slow it down

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