App Dev Worksheet: Part 2 Test
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.
NameDateTime takenScore ___ / 40
- 1.🌗 Is pale pink on white easy or hard to read on a button? (a) easy to read (b) hard to read
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2.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
1. tap the Home tab
2. open “Badges”
3. tap the Profile tab
4. open “Edit photo”
5. tap Back
How many times must you tap Back to reach the main screen of this tab? - 3.Which of these is true of a wireframe? (a) uses the final pictures (b) uses plain grey boxes (c) has the real colours (d) shows the real fonts
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4.🖼️ In this wireframe (top to bottom), what is right below the big picture?
[ tab bar ]
[ search box ]
[ big picture ]
[ list of items ] (a) tab bar (b) list of items (c) search box - 5.True or false: a class leaderboard fits saving on the phone. (a) True (b) False
- 6.🔢 In a sign-up flow, which comes first: “type name and email” or “make a password”? (a) type name and email (b) make a password
- 7.Which of these is about UI (the look)? (a) how easy sign-up is (b) how fast a task is done (c) the button colours (d) how users feel after
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8.🖼️ In this wireframe (top to bottom), what is right above the menu icon?
[ Add button ]
[ title text ]
[ Save button ]
[ menu icon ]
[ tab bar ] (a) tab bar (b) Add button (c) title text (d) Save button - 9.🎨 Fewer taps to finish a task usually means ___. (a) more colours (b) worse UX (c) a bigger app (d) better UX
- 10.💾 Saving data in the cloud lets you ___. (a) skip the internet (b) never need a password (c) shrink the app (d) use it on any device
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11.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
1. open “Friend list”
2. tap the Lessons tab
3. open “Help page”
4. open “Edit photo”
5. tap Back
Which screen are you on now? (a) Friend list (b) Edit photo (c) Lessons (d) Help page - 12.🔢 In a sign-up flow, what comes right after “make a password”? (a) enter the code sent (b) see the home screen (c) tap “Sign up” (d) type name and email
- 13.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
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14.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
Design A: Home → Shop → Confirm → Menu
Design B: Home → Confirm → Cart -
15.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
Design A: Home → Item → Shop → Pens → Address
Design B: Home → Pens → Size - 16.🎨 Is this about UI or UX: the font size? (a) UX (b) UI
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17.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
Save button: 52 px tall
Next button: 48 px tall
Send button: 64 px tall -
18.💾 pop() takes off the last item. What does this code show?
let songs = ["Sunrise", "Monsoon", "Stars", "Ocean", "Kites"];
songs.pop();
show(songs[songs.length - 1]); (a) Stars (b) Ocean (c) Sunrise (d) Monsoon -
19.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
1. open “Friend list”
2. open “Help page”
3. open “Map”
4. open “Match report”
5. tap the Lessons tab
Which screen are you on now? (a) Map (b) Friend list (c) Help page (d) Lessons - 20.🎨 A beautiful app that confuses everyone has ___. (a) no UI at all (b) good UX but poor UI (c) perfect UX (d) good UI but poor UX
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21.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
Design A: Home → Menu → Shop → Pay
Design B: Home → Cart → Results (a) Design B (b) Design A - 22.🧭 Which part of navigation undoes one move? (a) a tab bar (b) a menu button (c) the back button
- 23.🎨 UI stands for user ___. (a) input (b) internet (c) interface (d) idea
- 24.True or false: whether users get lost is about UX (the experience). (a) False (b) True
- 25.🌗 Is black on pale grey easy or hard to read on a button? (a) easy to read (b) hard to read
- 26.🔢 In a photo-post flow, what comes right after “add a filter”? (a) post the photo (b) take the photo (c) write a caption (d) open the camera screen
- 27.True or false: the icon shapes is about UI (the look). (a) True (b) False
- 28.Which colour pair is easy to read? (a) pale pink on white (b) light grey on white (c) black on pale grey (d) dark blue on black
- 29.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a wireframe (b) a final design
- 30.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a sound (c) a text label (d) a long animation
- 31.🔘 Is this good or poor button design: a clear word like Save? (a) poor design (b) good design
- 32.🔢 In a sign-up flow, which comes first: “see the home screen” or “enter the code sent”? (a) enter the code sent (b) see the home screen
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33.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
Title: 26 px
Menu: 12 px
Caption: 16 px
Footer: 28 px (a) Caption (b) Menu (c) Footer (d) Title - 34.🎨 Is this about UI or UX: how many taps it takes? (a) UI (b) UX
- 35.Which of these is true of a menu button? (a) hides extra links (b) undoes one move (c) shows 3 to 5 icons (d) goes to the last screen
- 36.🧭 Which part of navigation sits at the bottom? (a) the back button (b) a menu button (c) a tab bar
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37.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
1. open “Badges”
2. tap Back
3. tap the Home tab
How many times must you tap Back to reach the main screen of this tab? - 38.🔢 In a quiz-app flow, what comes right after “pick an answer”? (a) see the final score (b) read a question (c) see if it is right (d) tap “Start quiz”
- 39.🔍 Which is the odd one out? (a) the icon shapes (b) the theme colours (c) the font size (d) how fast a task is done
- 40.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
Answer key
- hard to read
- 0
- uses plain grey boxes
- list of items
- False
- type name and email
- the button colours
- Save button
- better UX
- use it on any device
- Help page
- enter the code sent
- True
- 1
- 2
- UI
- 3
- Ocean
- Lessons
- good UI but poor UX
- Design B
- the back button
- interface
- True
- easy to read
- write a caption
- True
- black on pale grey
- a final design
- a text label
- good design
- enter the code sent
- Menu
- UX
- hides extra links
- a tab bar
- 0
- see if it is right
- how fast a task is done
- True
Free app development lessons, practice and worksheets at talentjr.in/app-development-for-students