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.Which of these is true of a wireframe? (a) looks like the real app (b) has no real colours (c) has the real colours (d) uses the final pictures
- 2.🔍 Which is the odd one out? (a) how many taps it takes (b) how users feel after (c) how fast a task is done (d) the button colours
-
3.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
[ filter buttons ]
[ top bar ]
[ title text ]
[ list of items ] (a) top bar (b) list of items (c) title text (d) filter buttons -
4.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
1. tap the Lessons tab
2. open “Video”
3. tap Back
4. open “Help page”
5. tap Back
How many times must you tap Back to reach the main screen of this tab? - 5.🔀 A screen with no way forward or back is called a ___. (a) home screen (b) dead end (c) tab bar (d) shortcut
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6.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
Design A: Home → Menu → Shop → Confirm → Pens
Design B: Home → Cart → Address -
7.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
Save button: 44 px tall
Back button: 64 px tall
Start button: 40 px tall - 8.Which of these is about UI (the look)? (a) whether users get lost (b) the icon shapes (c) how users feel after (d) how many taps it takes
- 9.🧭 Which part of navigation sits at the bottom? (a) a menu button (b) a tab bar (c) the back button
- 10.🔢 In a photo-post flow, what comes right after “write a caption”? (a) take the photo (b) add a filter (c) open the camera screen (d) post the photo
- 11.Which colour pair is easy to read? (a) black on pale grey (b) pale pink on white (c) light grey on white (d) dark blue on black
- 12.🔢 In a sign-up flow, which comes FIRST? (a) make a password (b) enter the code sent (c) type name and email (d) open the app
-
13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
Title: 16 px
Body text: 26 px
Hint: 13 px (a) Hint (b) Body text (c) Title - 14.✏️ Is this true of a wireframe or of a final design: uses the final pictures? (a) a wireframe (b) a final design
- 15.Which of these fits saving in the cloud? (a) the sound on/off setting (b) your last game level (c) a draft you are typing (d) chat messages to friends
- 16.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
- 17.True or false: how users feel after is about UI (the look). (a) True (b) False
-
18.🖼️ How many parts (boxes) does this wireframe have?
[ top bar ]
[ tab bar ]
[ Add button ]
[ search box ]
[ list of items ]
[ filter buttons ] - 19.✏️ What is a wireframe? (a) a simple screen sketch (b) a charging cable (c) the finished app (d) a type of password
-
20.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
[ big picture ]
[ filter buttons ]
[ menu icon ]
[ Save button ] (a) big picture (b) Save button (c) menu icon (d) filter buttons -
21.🖼️ In this wireframe (top to bottom), what is right above the search box?
[ big picture ]
[ Save button ]
[ list of items ]
[ title text ]
[ filter buttons ]
[ search box ] (a) filter buttons (b) list of items (c) big picture (d) title text - 22.✏️ A box with a cross in a wireframe usually means ___. (a) delete this (b) a picture goes here (c) a closed app (d) an error
- 23.🔘 Is this good or poor button design: strong colour contrast? (a) good design (b) poor design
- 24.🔀 What is a user flow? (a) the path through screens (b) a charging cable (c) a colour theme (d) a type of font
-
25.💾 What number does this code show?
let points = 6;
points = points - 4;
points = points + 5;
show(points); - 26.✏️ Do wireframes usually show the final colours? (a) Yes (b) No
- 27.True or false: the button colours is about UI (the look). (a) False (b) True
- 28.Which colour pair is easy to read? (a) yellow on white (b) white on black (c) dark blue on black (d) pale pink on white
- 29.Which of these is about UI (the look)? (a) the theme colours (b) whether users get lost (c) how easy sign-up is (d) how fast a task is done
- 30.💾 Data saved only on the phone is lost when ___. (a) you send a message (b) the screen turns off (c) the app is closed (d) the phone is lost
- 31.🔀 In a good flow, each screen should lead to ___. (a) the same screen (b) a random page (c) a clear next step (d) a dead end
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32.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
Start button: 56 px tall
Save button: 48 px tall
Back button: 60 px tall
Send button: 32 px tall - 33.🔢 In a quiz-app flow, what comes right after “see if it is right”? (a) tap “Start quiz” (b) pick an answer (c) see the final score (d) read a question
- 34.🔘 Is this good or poor button design: space between buttons? (a) poor design (b) good design
- 35.True or false: your last game level fits saving in the cloud. (a) True (b) False
- 36.🔢 In a photo-post flow, what comes right after “open the camera screen”? (a) post the photo (b) write a caption (c) add a filter (d) take the photo
- 37.True or false: the font size is about UI (the look). (a) False (b) True
-
38.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
1. open “Edit photo”
2. tap the Settings tab
3. open “Map”
4. open “Badges”
Which screen are you on now? (a) Map (b) Edit photo (c) Feed (d) Badges - 39.🔘 Our rule: buttons are at least 48 px tall. The Cancel button is 32 px tall. How many px taller must it be?
- 40.Which of these is about UX (the experience)? (a) the screen layout (b) whether users get lost (c) the font size (d) the theme colours
Answer key
- has no real colours
- the button colours
- list of items
- 0
- dead end
- 4
- 1
- the icon shapes
- a tab bar
- post the photo
- black on pale grey
- open the app
- Hint
- a final design
- chat messages to friends
- helps everyone
- False
- 6
- a simple screen sketch
- Save button
- filter buttons
- a picture goes here
- good design
- the path through screens
- 7
- No
- True
- white on black
- the theme colours
- the phone is lost
- a clear next step
- 3
- see the final score
- good design
- False
- take the photo
- True
- Badges
- 16
- whether users get lost
Free app development lessons, practice and worksheets at talentjr.in/app-development-for-students