App Dev Worksheet: Parts of an App
Developer's tip (Screen, tap, type, keep): A screen is one page of the app; a button starts an action. Inputs take information: text box (typing), switch (on / off), slider (a level), date picker. Data is what the app keeps: notes, scores, settings, lists.
NameDateTime takenScore ___ / 40
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1.🧩 How many inputs (text boxes, switches and sliders) does this screen have?
[title] New Note
[text box] Phone
[button] Back
[text box] Email
[text box] City -
2.🧩 How many inputs (text boxes, switches and sliders) does this screen have?
[title] Order Snacks
[slider] Volume
[switch] Show hints
[text box] Age
[button] Cancel
[button] Save
[button] Help -
3.🧩 How many buttons does this app screen have?
[title] Order Snacks
[text box] Phone
[switch] Show hints
[slider] Volume
[button] Start
[button] Back - 4.🧩 What does a button do when you tap it? (a) shows the time (b) changes the phone (c) saves the battery (d) starts an action
- 5.True or false: a switch for dark mode is an input. (a) True (b) False
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6.🧩 How many inputs (text boxes, switches and sliders) does this screen have?
[title] Settings
[button] Start
[slider] Text size
[text box] City
[button] Next
[switch] Show hints
[text box] Age
[text box] Subject
[button] Cancel -
7.🧩 How many buttons does this app screen have?
[title] Sign Up
[button] Save
[switch] Sound
[text box] Notes - 8.True or false: tap to Start is a button. (a) False (b) True
- 9.🧩 Which input is best for turning something ON or OFF? (a) a switch (b) a title (c) a slider (d) a text box
- 10.🧩 In an app, what is a slider for volume? (a) a screen (b) a button (c) data (d) an input
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11.🧩 How many buttons does this app screen have?
[title] Add Homework
[text box] Subject
[button] Cancel
[button] Done
[text box] Name
[text box] City
[slider] Brightness - 12.Which of these is an input? (a) tap to Start (b) today’s step count (c) the settings page (d) a box to type a name
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13.🧩 How many buttons does this app screen have?
[title] Settings
[text box] Name
[button] Back
[text box] Age
[switch] Remind me
[text box] Email -
14.🧩 Which of these is a button on this screen?
[title] Add Homework
[button] Start
[text box] Age
[text box] Subject
[switch] Remind me (a) Age (b) Subject (c) Remind me (d) Start - 15.True or false: your saved notes is a button. (a) True (b) False
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16.🧩 How many buttons does this app screen have?
[title] Sign Up
[button] Next
[text box] Name
[button] Done - 17.🧩 Scores, notes and settings that an app keeps are called ___. (a) tabs (b) screens (c) data (d) buttons
- 18.True or false: tap to go Next is a screen. (a) True (b) False
- 19.Which of these is data? (a) the settings page (b) the log-in page (c) tap to go Next (d) today’s step count
- 20.🧩 In an app, what is tap to Send? (a) data (b) a button (c) an input (d) a screen
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21.🧩 Which of these is a button on this screen?
[title] Order Snacks
[text box] Name
[button] Cancel
[button] Help
[slider] Volume (a) Cancel (b) Volume (c) Name - 22.🧩 In an app, what is the log-in page? (a) an input (b) data (c) a screen (d) a button
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23.🧩 Which of these is a button on this screen?
[title] Sign Up
[button] Back
[switch] Sound
[button] Next
[text box] City (a) Sound (b) City (c) Back -
24.🧩 How many inputs (text boxes, switches and sliders) does this screen have?
[title] Order Snacks
[button] Help
[button] Save
[text box] Notes
[button] Start
[slider] Volume
[text box] City
[text box] Subject -
25.🧩 How many inputs (text boxes, switches and sliders) does this screen have?
[title] Edit Profile
[button] Help
[text box] Email
[text box] City
[button] Save
[button] Back
[text box] Age
[slider] Text size - 26.🧩 What do we call one full page of an app? (a) a screen (b) a cable (c) a variable (d) a battery
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27.🧩 How many inputs (text boxes, switches and sliders) does this screen have?
[title] Settings
[text box] Notes
[slider] Volume
[text box] Name
[text box] Due date
[button] Done
[switch] Sound -
28.🧩 How many inputs (text boxes, switches and sliders) does this screen have?
[title] New Note
[text box] Name
[button] Cancel
[text box] Age
[button] Save - 29.🧩 Which input is best for typing your name? (a) a text box (b) a picture (c) a slider (d) a switch
- 30.🧩 In an app, what is your saved notes? (a) a screen (b) an input (c) data (d) a button
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31.🧩 How many inputs (text boxes, switches and sliders) does this screen have?
[title] Edit Profile
[switch] Dark mode
[text box] Name
[button] Send - 32.Which of these is a button? (a) today’s step count (b) tap to Send (c) a date picker (d) the home page of an app
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33.🧩 How many buttons does this app screen have?
[title] Settings
[button] Cancel
[text box] Notes
[slider] Brightness
[button] Done
[button] Back
[text box] Name
[text box] Subject -
34.🧩 How many buttons does this app screen have?
[title] Add Homework
[slider] Brightness
[button] Done
[text box] Name
[switch] Show hints
[button] Next - 35.🧩 In an app, what is the settings page? (a) data (b) a screen (c) a button (d) an input
- 36.True or false: your saved notes is data. (a) False (b) True
- 37.Which of these is data? (a) the log-in page (b) a slider for volume (c) your saved notes (d) a switch for dark mode
- 38.Which of these is an input? (a) the settings page (b) tap to Send (c) a date picker (d) tap to Start
- 39.🧩 In an app, what is today’s step count? (a) a button (b) data (c) an input (d) a screen
- 40.True or false: the log-in page is a screen. (a) False (b) True
Answer key
- 3
- 3
- 2
- starts an action
- True
- 5
- 1
- True
- a switch
- an input
- 2
- a box to type a name
- 1
- Start
- False
- 2
- data
- False
- today’s step count
- a button
- Cancel
- a screen
- Back
- 4
- 4
- a screen
- 5
- 2
- a text box
- data
- 2
- tap to Send
- 3
- 2
- a screen
- True
- your saved notes
- a date picker
- data
- True
Free app development lessons, practice and worksheets at talentjr.in/app-development-for-students