App development · lesson 16 of 24 · free

Designing apps: Part 2 test — App development for students

The Part 2 test mixes questions from lessons 9 to 15: UI vs UX and tap counts, wireframes, navigation with tabs and the back button, button size and contrast, accessibility, user flows and data. Pass it to earn the Part 2 badge.

▶ Watch how it works

Got it? Practise ↓

Developer's tip

Think like the user — “find the topic, then picture a real user using the screen”

  1. First decide which topic the question is about.
  2. Use that lesson’s rule: 48 px buttons, 16 px text, the screen stack, the flow order.
  3. For code, count positions from 0.

Use it for: Revising Part 2 before moving on to logic and building.

Worked example: 🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
1. open “Friend list”
2. open “Edit photo”
3. open “Video”
Which screen are you on now? → Video

  1. Each open puts a screen on top: Lessons → Friend list → Edit photo → Video.
  2. The top screen is the one you see.

Check: It takes 3 Backs to get back to Lessons ✓

▶ Watch it animated

✏️ Practice

Work it out in your head or on paper, type the answer and press Check. Stuck? Press “Show me how”.

Right: 0 · Tried: 0

🏁 Lesson 16 test

20 questions. Check each answer, then go to the next one. Get 16 or more right to pass.

🏅 Sign in with Google to earn the 🥈 App Design Champ badge when you pass — and a certificate when you finish all 8 lessons of Part 2 · Designing Apps. You can still take the test without signing in.

🖨️ App Dev Worksheet: Part 2 Test

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