App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 680 · 40 questions

Developer's tip (Think like the user): First decide which topic the question is about. Use that lesson’s rule: 48 px buttons, 16 px text, the screen stack, the flow order. For code, count positions from 0.

1. 1.True or false: how many taps it takes is about UI (the look). (a) True (b) False
2. 2.🎨 A beautiful app that confuses everyone has ___. (a) perfect UX (b) no UI at all (c) good UI but poor UX (d) good UX but poor UI
3. 3.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
4. 4.🔍 Which is the odd one out? (a) sudden loud sounds (b) colour as the only clue (c) icons with no labels (d) text that can grow
5. 5.Which colour pair is easy to read? (a) black on pale grey (b) dark blue on black (c) red on green (d) yellow on white
6. 6.True or false: the sound on/off setting fits saving in the cloud. (a) False (b) True
7. 7.True or false: a class leaderboard fits saving in the cloud. (a) True (b) False
8. 8.True or false: a wireframe has no real colours. (a) False (b) True
9. 9.🔘 Is this good or poor button design: buttons almost touching? (a) good design (b) poor design
10. 10.Which of these fits saving in the cloud? (a) notes to read offline (b) the sound on/off setting (c) a draft you are typing (d) photos on two devices
11. 11.✏️ Do wireframes usually show the final colours? (a) Yes (b) No
12. 12.🔢 In a food-order flow, which comes LAST? (a) pay for the order (b) check the cart (c) track the order (d) open the menu
13. 13.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Cancel button: 44 px tall
    Help button: 64 px tall
    Save button: 56 px tall
    Next button: 64 px tall
14. 14.🔘 Our rule: buttons are at least 48 px tall. The Cancel button is 40 px tall. How many px taller must it be?
15. 15.🖼️ In this wireframe (top to bottom), what is right below the top bar?
    [ Save button ]
    [ big picture ]
    [ top bar ]
    [ search box ] (a) big picture (b) search box (c) Save button
16. 16.💾 pop() takes off the last item. What does this code show?
    let songs = ["Kites", "Monsoon", "Sunrise"];
    songs.pop();
    show(songs[songs.length - 1]); (a) Sunrise (b) Kites (c) Monsoon
17. 17.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Back button: 72 px tall
    Next button: 60 px tall
    Done button: 60 px tall
    Send button: 24 px tall (a) Next (b) Back (c) Send (d) Done
18. 18.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
19. 19.🔢 In a quiz-app flow, which comes first: “read a question” or “see if it is right”? (a) see if it is right (b) read a question
20. 20.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Footer: 10 px
    Body text: 21 px
    Menu: 15 px
21. 21.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Confirm → Menu
    Design B: Home → Search → Address → Pay → Offers → Shop
22. 22.🔀 Why plan the user flow before building? (a) to hide the buttons (b) to skip testing (c) to add more taps (d) so each step is clear
23. 23.🔀 What is a user flow? (a) a colour theme (b) a type of font (c) the path through screens (d) a charging cable
24. 24.🔍 Which is the odd one out? (a) captions on videos (b) sudden loud sounds (c) text that can grow (d) strong colour contrast
25. 25.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Results → Search → Offers
    Design B: Home → Results → Pens → Address → Shop → Menu
26. 26.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. tap Back
    3. open “Video”
    How many times must you tap Back to reach the main screen of this tab?
27. 27.🧭 About how many tabs suit a tab bar best? (a) 10 to 12 (b) 1 (c) 3 to 5 (d) 20
28. 28.🔢 In a quiz-app flow, which comes FIRST? (a) read a question (b) see the final score (c) pick an answer (d) tap “Start quiz”
29. 29.💾 In most code, the first item of a list is at position ___. (a) 10 (b) 1 (c) 0 (d) 2
30. 30.✏️ Is this true of a wireframe or of a final design: has no real colours? (a) a wireframe (b) a final design
31. 31.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Shop → Search
    Design B: Home → Item → Size → Results → Confirm → Cart → Offers
32. 32.True or false: your last game level fits saving in the cloud. (a) False (b) True
33. 33.✏️ Is this true of a wireframe or of a final design: shows where things go? (a) a wireframe (b) a final design
34. 34.Which colour pair is easy to read? (a) yellow on white (b) white on dark green (c) dark blue on black (d) red on green
35. 35.🧭 What does the back button usually do? (a) deletes the page (b) opens settings (c) closes all apps (d) goes to the last screen
36. 36.True or false: your last game level fits saving on the phone. (a) True (b) False
37. 37.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Help page”
    2. open “Map”
    3. tap Back
    Which screen are you on now? (a) Help page (b) Map (c) Quiz (d) Lessons
38. 38.🔍 Which is the odd one out? (a) how many taps it takes (b) how easy sign-up is (c) the button colours (d) whether users get lost
39. 39.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Done button: 48 px tall
    Back button: 72 px tall
    Save button: 40 px tall
    Help button: 52 px tall (a) Help (b) Done (c) Back (d) Save
40. 40.Which of these is about UI (the look)? (a) how users feel after (b) how easy sign-up is (c) how many taps it takes (d) the theme colours

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