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.🖼️ In this wireframe (top to bottom), what is right above the big picture?
[ search box ]
[ big picture ]
[ Add button ]
[ top bar ] (a) Add button (b) search box (c) top bar - 2.🔍 Which is the odd one out? (a) the icon shapes (b) how users feel after (c) the theme colours (d) the button colours
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3.🖼️ In this wireframe (top to bottom), what is right above the list of items?
[ search box ]
[ list of items ]
[ title text ]
[ menu icon ]
[ filter buttons ] (a) filter buttons (b) title text (c) menu icon (d) search box - 4.🔍 Which is the odd one out? (a) how fast a task is done (b) the theme colours (c) how users feel after (d) how many taps it takes
- 5.🔘 Is this good or poor button design: buttons almost touching? (a) good design (b) poor design
- 6.🧭 Why should every screen show where you are? (a) to hide the menu (b) so users do not get lost (c) to use more battery (d) to look busy
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7.🖼️ In this wireframe (top to bottom), what is right below the big picture?
[ big picture ]
[ Add button ]
[ menu icon ]
[ top bar ]
[ tab bar ] (a) Add button (b) tab bar (c) menu icon (d) top bar - 8.🔘 Our rule: buttons are at least 48 px tall. The Done button is 28 px tall. How many px taller must it be?
- 9.True or false: a wireframe is a quick sketch. (a) True (b) False
- 10.🔀 A screen with no way forward or back is called a ___. (a) home screen (b) shortcut (c) tab bar (d) dead end
- 11.🧭 Where is a tab bar usually placed in a phone app? (a) inside a button (b) in the middle (c) nowhere (d) at the bottom
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12.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
Back button: 56 px tall
Cancel button: 44 px tall
Save button: 60 px tall
Done button: 56 px tall -
13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
Label: 16 px
Hint: 27 px
Footer: 25 px
Title: 10 px
Body text: 26 px (a) Label (b) Hint (c) Footer (d) Title - 14.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) helps everyone (b) makes it harder
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15.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
1. open “Help page”
2. tap Back
3. open “Score card”
4. tap the Home tab
5. open “Score card”
Which screen are you on now? (a) Home (b) Score card (c) Help page (d) Search -
16.🖼️ In this wireframe (top to bottom), what is right above the filter buttons?
[ tab bar ]
[ menu icon ]
[ filter buttons ]
[ big picture ]
[ search box ] (a) search box (b) big picture (c) menu icon (d) tab bar -
17.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
1. open “Edit photo”
2. tap the Chat tab
3. open “Badges”
How many times must you tap Back to reach the main screen of this tab? - 18.🔍 Which is the odd one out? (a) strong colour contrast (b) icons with no labels (c) text that can grow (d) big touch targets
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19.🖼️ In this wireframe (top to bottom), what is right below the tab bar?
[ tab bar ]
[ big picture ]
[ search box ]
[ menu icon ] (a) search box (b) menu icon (c) big picture - 20.Which of these is true of a menu button? (a) sits at the bottom (b) opens a list of pages (c) undoes one move (d) switches main sections
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21.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
1. open “Help page”
2. open “Match report”
3. open “Badges”
How many times must you tap Back to reach the main screen of this tab? -
22.🖼️ How many parts (boxes) does this wireframe have?
[ tab bar ]
[ filter buttons ]
[ menu icon ]
[ title text ]
[ list of items ] - 23.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a wireframe (b) a final design
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24.🖼️ In this wireframe (top to bottom), what is right above the Save button?
[ top bar ]
[ list of items ]
[ tab bar ]
[ Save button ]
[ title text ] (a) tab bar (b) top bar (c) title text (d) list of items - 25.🔢 In a photo-post flow, what comes right after “add a filter”? (a) write a caption (b) post the photo (c) open the camera screen (d) take the photo
- 26.✏️ Why draw a wireframe before coding? (a) it saves data (b) it runs the app (c) it adds colours (d) changes are quick
- 27.True or false: buttons almost touching is poor button design. (a) False (b) True
- 28.True or false: your last game level fits saving in the cloud. (a) True (b) False
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29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
Title: 17 px
Body text: 20 px
Label: 27 px
Footer: 12 px (a) Label (b) Body text (c) Title (d) Footer - 30.Which of these is about UX (the experience)? (a) whether users get lost (b) the screen layout (c) the button colours (d) the font size
- 31.🔢 In a sign-up flow, which comes LAST? (a) tap “Sign up” (b) enter the code sent (c) open the app (d) see the home screen
- 32.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) the server (d) colour-blind users
- 33.True or false: the theme colours is about UI (the look). (a) False (b) True
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34.💾 What number does this code show?
let points = 8;
points = points - 5;
points = points + 3;
show(points); - 35.Which of these is about UI (the look)? (a) whether users get lost (b) how many taps it takes (c) the screen layout (d) how users feel after
- 36.Which of these is true of a final design? (a) shows where things go (b) has the real colours (c) uses plain grey boxes (d) has no real colours
- 37.Which of these is true of a wireframe? (a) has the real colours (b) shows the real fonts (c) looks like the real app (d) is a quick sketch
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38.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
Design A: Home → Offers → Menu → Pay → Cart
Design B: Home → Results → Item → Offers - 39.♿ A screen has 7 icon buttons. Only 5 of them have a text label for screen readers. How many still need a label?
- 40.🔢 In a sign-up flow, what comes right after “type name and email”? (a) open the app (b) make a password (c) tap “Sign up” (d) see the home screen
Answer key
- search box
- how users feel after
- search box
- the theme colours
- poor design
- so users do not get lost
- Add button
- 20
- True
- dead end
- at the bottom
- 3
- Title
- helps everyone
- Score card
- menu icon
- 1
- icons with no labels
- big picture
- opens a list of pages
- 3
- 5
- a final design
- tab bar
- write a caption
- changes are quick
- True
- False
- Footer
- whether users get lost
- see the home screen
- colour-blind users
- True
- 6
- the screen layout
- has the real colours
- is a quick sketch
- 4
- 2
- make a password
Free app development lessons, practice and worksheets at talentjr.in/app-development-for-students