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
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1.🖼️ How many parts (boxes) does this wireframe have?
[ title text ]
[ Save button ]
[ big picture ]
[ menu icon ]
[ search box ]
[ Add button ] -
2.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
1. open “Friend list”
2. tap the Search tab
3. open “Edit photo”
Which screen are you on now? (a) Friend list (b) Home (c) Search (d) Edit photo - 3.True or false: notes to read offline fits saving on the phone. (a) False (b) True
- 4.🔍 Which is the odd one out? (a) the button colours (b) the font size (c) how fast a task is done (d) the icon shapes
- 5.True or false: chat messages to friends fits saving in the cloud. (a) False (b) True
- 6.🔢 In a photo-post flow, which comes first: “post the photo” or “write a caption”? (a) write a caption (b) post the photo
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7.🖼️ In this wireframe (top to bottom), what is right above the list of items?
[ Add button ]
[ search box ]
[ list of items ]
[ filter buttons ]
[ title text ] (a) filter buttons (b) title text (c) search box (d) Add button - 8.Which of these fits saving in the cloud? (a) notes to read offline (b) photos on two devices (c) your last game level (d) the sound on/off setting
- 9.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a text label (c) a long animation (d) a sound
- 10.💾 Saving data in the cloud lets you ___. (a) use it on any device (b) never need a password (c) shrink the app (d) skip the internet
- 11.Which colour pair is easy to read? (a) pale pink on white (b) red on green (c) light grey on white (d) black on yellow
- 12.Which of these helps everyone use the app? (a) labels on every icon (b) sudden loud sounds (c) icons with no labels (d) fast-flashing lights
- 13.🔘 Our rule: buttons are at least 48 px tall. The Send button is 44 px tall. How many px taller must it be?
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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 → Results → Size → Menu → Pens → Cart → Address
Design B: Home → Cart → Results → Confirm -
15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
Caption: 10 px
Hint: 28 px
Body text: 18 px (a) Body text (b) Caption (c) Hint - 16.🎨 UX stands for user ___. (a) express (b) example (c) experience (d) extra
- 17.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
- 18.Which of these is about UI (the look)? (a) the button colours (b) how easy sign-up is (c) how users feel after (d) how many taps it takes
- 19.Which of these is about UI (the look)? (a) how users feel after (b) how many taps it takes (c) the font size (d) how easy sign-up is
- 20.✏️ Is this true of a wireframe or of a final design: shows where things go? (a) a final design (b) a wireframe
- 21.Which of these is true of a wireframe? (a) shows the real fonts (b) uses the final pictures (c) is a quick sketch (d) looks like the real app
- 22.Which of these is true of a menu button? (a) switches main sections (b) undoes one move (c) opens a list of pages (d) sits at the bottom
- 23.🎨 Is this about UI or UX: whether users get lost? (a) UX (b) UI
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24.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
Body text: 13 px
Title: 19 px
Footer: 19 px
Hint: 12 px -
25.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
Design A: Home → Size → Confirm → Menu → Cart
Design B: Home → Shop → Menu → Confirm → Size → Offers → Search - 26.🔘 Our rule: buttons are at least 48 px tall. The Help button is 32 px tall. How many px taller must it be?
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27.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
1. open “Map”
2. tap Back
3. tap the Quiz tab
4. tap the Quiz tab
5. open “Match report”
How many times must you tap Back to reach the main screen of this tab? - 28.Which of these is true of a wireframe? (a) uses plain grey boxes (b) looks like the real app (c) has the real colours (d) shows the real fonts
- 29.💾 Which can hold many values in order? (a) a button (b) a single number (c) a switch (d) a list
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30.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
1. open “Badges”
2. open “Badges”
3. open “Match report”
How many times must you tap Back to reach the main screen of this tab? - 31.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a final design (b) a wireframe
- 32.🎨 Is this about UI or UX: the font size? (a) UI (b) UX
- 33.💾 Where should the app save a shared to-do list: on the phone or in the cloud? (a) in the cloud (b) on the phone
- 34.🔘 Is this good or poor button design: buttons almost touching? (a) poor design (b) good design
- 35.🔢 In a photo-post flow, which comes FIRST? (a) post the photo (b) take the photo (c) open the camera screen (d) add a filter
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36.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
Next button: 36 px tall
Start button: 52 px tall
Done button: 40 px tall -
37.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
Design A: Home → Pay → Address → Offers → Shop → Size
Design B: Home → Menu → Confirm → Shop → Item (a) Design B (b) Design A -
38.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
Save button: 52 px tall
Next button: 24 px tall
Back button: 60 px tall (a) Save (b) Next (c) Back -
39.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
1. open “Map”
2. tap the Feed tab
3. tap the Chat tab
Which screen are you on now? (a) Map (b) Settings (c) Chat (d) Feed - 40.Which of these fits saving in the cloud? (a) a draft you are typing (b) a shared to-do list (c) the sound on/off setting (d) notes to read offline
Answer key
- 6
- Edit photo
- True
- how fast a task is done
- True
- write a caption
- search box
- photos on two devices
- a text label
- use it on any device
- black on yellow
- labels on every icon
- 4
- 3
- Caption
- experience
- makes it harder
- the button colours
- the font size
- a wireframe
- is a quick sketch
- opens a list of pages
- UX
- 2
- 2
- 16
- 1
- uses plain grey boxes
- a list
- 3
- a wireframe
- UI
- in the cloud
- poor design
- open the camera screen
- 1
- Design B
- Next
- Chat
- a shared to-do list
Free app development lessons, practice and worksheets at talentjr.in/app-development-for-students