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 this good or poor button design: a big, easy tap area? (a) poor design (b) good design
- 2.🔢 In a quiz-app flow, what comes right after “see if it is right”? (a) read a question (b) tap “Start quiz” (c) see the final score (d) pick an answer
- 3.✏️ What is a wireframe? (a) a simple screen sketch (b) a type of password (c) the finished app (d) a charging cable
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4.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
Done button: 64 px tall
Next button: 28 px tall
Back button: 48 px tall (a) Done (b) Next (c) Back -
5.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
Design A: Home → Cart → Pens
Design B: Home → Confirm → Shop → Menu - 6.🌗 Is black on yellow easy or hard to read on a button? (a) easy to read (b) hard to read
- 7.🔢 In a photo-post flow, what comes right after “add a filter”? (a) write a caption (b) take the photo (c) open the camera screen (d) post the photo
- 8.🔢 In a quiz-app flow, which comes first: “see the final score” or “tap “Start quiz””? (a) tap “Start quiz” (b) see the final score
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9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
Body text: 21 px
Footer: 16 px
Label: 20 px
Hint: 14 px (a) Body text (b) Hint (c) Label (d) Footer - 10.🔍 Which is the odd one out? (a) the icon shapes (b) how easy sign-up is (c) the screen layout (d) the theme colours
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11.🖼️ In this wireframe (top to bottom), what is right above the list of items?
[ big picture ]
[ Save button ]
[ list of items ]
[ title text ] (a) Save button (b) big picture (c) title text - 12.🔀 What is a user flow? (a) a colour theme (b) the path through screens (c) a charging cable (d) a type of font
- 13.🌗 Is white on dark green easy or hard to read on a button? (a) easy to read (b) hard to read
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14.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
Send button: 44 px tall
Back button: 48 px tall
Help button: 64 px tall - 15.Which of these makes the app harder to use? (a) fast-flashing lights (b) text that can grow (c) captions on videos (d) strong colour contrast
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16.🖼️ How many parts (boxes) does this wireframe have?
[ top bar ]
[ big picture ]
[ Add button ]
[ search box ]
[ menu icon ] - 17.🔢 In a photo-post flow, which comes first: “post the photo” or “open the camera screen”? (a) open the camera screen (b) post the photo
- 18.Which colour pair is easy to read? (a) white on dark green (b) light grey on white (c) dark blue on black (d) red on green
- 19.Which of these is true of a final design? (a) uses plain grey boxes (b) has the real colours (c) has no real colours (d) shows where things go
- 20.🔢 In a photo-post flow, which comes first: “take the photo” or “open the camera screen”? (a) open the camera screen (b) take the photo
- 21.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a wireframe (b) a final design
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22.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
1. open “Match report”
2. open “Match report”
3. tap the Search tab
4. open “Score card”
How many times must you tap Back to reach the main screen of this tab? - 23.Which colour pair is hard to read? (a) black on yellow (b) white on dark green (c) light grey on white (d) black on pale grey
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24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
Hint: 10 px
Caption: 11 px
Footer: 24 px -
25.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
Done button: 36 px tall
Next button: 52 px tall
Save button: 56 px tall (a) Done (b) Next (c) Save - 26.🎨 Is this about UI or UX: how fast a task is done? (a) UI (b) UX
- 27.🔢 In a sign-up flow, what comes right after “type name and email”? (a) see the home screen (b) make a password (c) tap “Sign up” (d) enter the code sent
- 28.Which of these helps everyone use the app? (a) captions on videos (b) colour as the only clue (c) tiny tap areas (d) fast-flashing lights
- 29.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
- 30.True or false: chat messages to friends fits saving in the cloud. (a) True (b) False
- 31.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a final design (b) a wireframe
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32.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
1. open “Match report”
2. tap the Settings tab
3. tap the Feed tab
4. open “Help page”
How many times must you tap Back to reach the main screen of this tab? - 33.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
- 34.Which of these is true of a tab bar? (a) goes to the last screen (b) opens a list of pages (c) undoes one move (d) sits at the bottom
- 35.🎨 UX stands for user ___. (a) experience (b) example (c) express (d) extra
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36.🖼️ In this wireframe (top to bottom), what is right above the big picture?
[ filter buttons ]
[ title text ]
[ top bar ]
[ Add button ]
[ big picture ]
[ search box ] (a) top bar (b) Add button (c) search box (d) filter buttons -
37.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
1. tap the Home tab
2. tap the Search tab
3. open “Score card”
Which screen are you on now? (a) Score card (b) Profile (c) Home (d) Search - 38.True or false: the icon shapes is about UI (the look). (a) False (b) True
- 39.🧭 Where is a tab bar usually placed in a phone app? (a) inside a button (b) nowhere (c) in the middle (d) at the bottom
- 40.🔢 In a food-order flow, which comes first: “add it to the cart” or “open the menu”? (a) open the menu (b) add it to the cart
Answer key
- good design
- see the final score
- a simple screen sketch
- Next
- 2
- easy to read
- write a caption
- tap “Start quiz”
- Hint
- how easy sign-up is
- Save button
- the path through screens
- easy to read
- 2
- fast-flashing lights
- 5
- open the camera screen
- white on dark green
- has the real colours
- open the camera screen
- a wireframe
- 1
- light grey on white
- 2
- Done
- UX
- make a password
- captions on videos
- helps everyone
- True
- a final design
- 1
- makes it harder
- sits at the bottom
- experience
- Add button
- Score card
- True
- at the bottom
- open the menu
Free app development lessons, practice and worksheets at talentjr.in/app-development-for-students