What is a drone (UAV) in Drone Programming - Interactive Quiz & Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a drone's basic property.

Drone Programming

class Drone:
    def __init__(self, [1]):
        self.name = name

Drag options to blanks, or click blank then click option'

Aweight

Bname

Caltitude

Dspeed

Attempts:

3 left

💡 Hint

Common Mistakes

Using a different parameter name than the attribute.

Forgetting to add the parameter in the constructor.

The constructor needs a parameter called name to set the drone's name.

2fill in blank

medium

Complete the code to make the drone fly at a given altitude.

Drone Programming

def fly(self, [1]):
    self.altitude = altitude
    print(f"Flying at {altitude} meters")

Drag options to blanks, or click blank then click option'

Aaltitude

Bdirection

Cspeed

Ddistance

Attempts:

3 left

💡 Hint

Common Mistakes

Using a parameter name unrelated to altitude.

Forgetting to use the parameter to set the attribute.

The method fly needs an altitude parameter to set how high the drone flies.

3fill in blank

hard

Fix the error in the method that makes the drone land.

Drone Programming

def land(self):
    self.altitude = [1]
    print("Drone has landed")

Drag options to blanks, or click blank then click option'

AFalse

BNone

C-1

D0

Attempts:

3 left

💡 Hint

Common Mistakes

Setting altitude to None or False, which are not numbers.

Using a negative number for altitude.

Setting altitude to 0 means the drone is on the ground, so it has landed.

4fill in blank

hard

Fill both blanks to create a dictionary of drone names and their altitudes above 10 meters.

Drone Programming

drones = {'Alpha': 5, 'Bravo': 15, 'Charlie': 20}
high_flyers = { [1] : drones[[2]] for [1] in drones if drones[[1]] > 10 }

Drag options to blanks, or click blank then click option'

Aname

Baltitude

Dheight

Attempts:

3 left

💡 Hint

Common Mistakes

Using different variable names inconsistently.

Using variables that do not match the dictionary keys.

We use name as the key variable to loop through the dictionary keys and filter by altitude.

5fill in blank

hard

Fill all three blanks to create a dictionary of drone names in uppercase with altitudes above 10 meters.

Drone Programming

drones = {'Alpha': 5, 'Bravo': 15, 'Charlie': 20}
high_flyers = { [1] : [2] for [3] in drones if drones[[3]] > 10 }

Drag options to blanks, or click blank then click option'

Aname.lower()

Bdrones[{{BLANK_3}}]

Cname.upper()

Dname

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up keys and values in the dictionary comprehension.

Using the wrong variable names or methods.

The key is the drone name in uppercase, the value is the altitude, and the loop variable is the drone name.

Practice

1. What is a drone (UAV)?

easy

A. A flying robot controlled remotely or by code

B. A type of ground vehicle

C. A software program for computers

D. A stationary camera device

Solution

1. Step 1: Understand the definition of a drone

   A drone, also called UAV, is a flying machine that can be controlled remotely or by programming.

2. Step 2: Compare options with the definition

   Only A flying robot controlled remotely or by code matches this description; others describe different things.

3. Final Answer:

   A flying robot controlled remotely or by code -> Option A

4. Quick Check:

   Drone = flying robot [OK]

Hint: Remember: drone means flying robot [OK]

Common Mistakes:

• Confusing drone with ground vehicles
• Thinking drone is just software
• Mixing drone with cameras

2. Which of these is the correct way to start a drone flying using code?

easy

A. drone.fly()

B. drone.takeoff()

C. drone.land()

D. drone.stop()

Solution

1. Step 1: Identify the command to start flying

   The command takeoff() is used to make the drone lift off the ground.

2. Step 2: Check other commands

   fly() is not a standard command; land() and stop() are for ending flight or stopping.

3. Final Answer:

   <code>drone.takeoff()</code> -> Option B

4. Quick Check:

   Takeoff starts flight [OK]

Hint: Takeoff means start flying [OK]

Common Mistakes:

• Using fly() instead of takeoff()
• Confusing land() with takeoff()
• Using stop() to start flying

3. What will this code print if the drone successfully takes off and lands?

drone.takeoff()
print('Flying')
drone.land()
print('Landed')

medium

A. Landed
Flying

B. Landed

C. Flying

D. Flying
Landed

Solution

1. Step 1: Follow the code execution order

   The code calls takeoff(), then prints 'Flying', then calls land(), then prints 'Landed'.

2. Step 2: Understand print outputs

   Both print statements run in order, so output is 'Flying' then 'Landed' on separate lines.

3. Final Answer:

   Flying Landed -> Option D

4. Quick Check:

   Print order matches code order [OK]

Hint: Prints appear in code order [OK]

Common Mistakes:

• Mixing print order
• Assuming takeoff() prints output
• Ignoring print statements

4. Find the error in this drone control code:

drone.takeoff()
drone.fly_to(10, 20)
drone.land()

medium

A. land() should be called before takeoff()

B. fly_to() is not a valid drone command

C. Missing drone initialization before commands

D. takeoff() should be after land()

Solution

1. Step 1: Check if drone is ready before commands

   The code uses drone commands but does not show drone being initialized or connected.

2. Step 2: Validate command sequence and names

   Commands takeoff(), fly_to(), and land() are valid if drone is ready; sequence is correct.

3. Final Answer:

   Missing drone initialization before commands -> Option C

4. Quick Check:

   Drone must be initialized first [OK]

Hint: Always initialize drone before commands [OK]

Common Mistakes:

• Calling commands before setup
• Thinking fly_to() is invalid
• Reversing takeoff and land order

5. You want to program a drone to take off, fly to coordinates (5, 10), hover for 3 seconds, then land. Which code snippet correctly does this?

hard

A. drone.takeoff()
drone.fly_to(5, 10)
drone.hover(3)
drone.land()

B. drone.fly_to(5, 10)
drone.takeoff()
drone.hover(3)
drone.land()

C. drone.takeoff()
drone.hover(3)
drone.fly_to(5, 10)
drone.land()

D. drone.land()
drone.takeoff()
drone.fly_to(5, 10)
drone.hover(3)

Solution

1. Step 1: Check the correct order of drone commands

   The drone must take off first, then fly to the location, hover, and finally land.

2. Step 2: Verify each command sequence in options

   drone.takeoff()
   drone.fly_to(5, 10)
   drone.hover(3)
   drone.land()

   follows the correct order: takeoff, fly_to, hover, land. Others have wrong order.

3. Final Answer:

   drone.takeoff()\ndrone.fly_to(5, 10)\ndrone.hover(3)\ndrone.land() -> Option A

4. Quick Check:

   Correct command order =

   drone.takeoff()
   drone.fly_to(5, 10)
   drone.hover(3)
   drone.land()

   [OK]

Hint: Takeoff first, then fly, hover, land last [OK]

Common Mistakes:

• Flying before takeoff
• Landing before flying
• Hovering before flying