Forward, backward, lateral movement in Drone Programming - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to move the drone forward by 5 meters.

Drone Programming

drone.move_[1](5)

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

Aforward

Bleft

Cbackward

Dright

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'backward' instead of 'forward' will move the drone in the opposite direction.

The move_forward command moves the drone forward by the specified distance.

2fill in blank

medium

Complete the code to move the drone backward by 3 meters.

Drone Programming

drone.move_[1](3)

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

Abackward

Bforward

Cleft

Dright

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'forward' will move the drone in the wrong direction.

The move_backward command moves the drone backward by the specified distance.

3fill in blank

hard

Fix the error in the code to move the drone to the right by 4 meters.

Drone Programming

drone.move_[1](4)

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

Aleft

Bforward

Cright

Dbackward

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'left' will move the drone in the opposite direction.

The correct command to move right is move_right.

4fill in blank

hard

Fill both blanks to move the drone left by 2 meters and then forward by 3 meters.

Drone Programming

drone.move_[1](2)
drone.move_[2](3)

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

Aleft

Bright

Cforward

Dbackward

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping directions will move the drone incorrectly.

First, move_left moves the drone left, then move_forward moves it forward.

5fill in blank

hard

Fill all three blanks to move the drone forward 5 meters, then right 2 meters, then backward 3 meters.

Drone Programming

drone.move_[1](5)
drone.move_[2](2)
drone.move_[3](3)

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

Aleft

Bright

Cbackward

Dforward

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up the order or directions will cause wrong movement.

The drone moves forward first, then right, then backward using the respective commands.

Practice

1. Which command moves the drone forward by 5 meters?

easy

A. move_right(5)

B. move_forward(5)

C. move_left(5)

D. move_backward(5)

Solution

1. Step 1: Understand the direction commands

   The command move_forward(distance) moves the drone forward by the given distance.

2. Step 2: Match the distance and direction

   Since we want to move forward by 5 meters, move_forward(5) is the correct command.

3. Final Answer:

   move_forward(5) -> Option B

4. Quick Check:

   Forward move = move_forward(5) [OK]

Hint: Forward means move_forward with distance [OK]

Common Mistakes:

• Confusing forward with backward commands
• Using lateral move commands instead of forward
• Mixing up distance units

2. Which of these is the correct syntax to move the drone 3 meters to the left?

easy

A. move_left(3)

B. moveLeft(3)

C. move_left 3

D. move_left(three)

Solution

1. Step 1: Identify correct function syntax

   The correct syntax uses the function name followed by parentheses enclosing the distance number.

2. Step 2: Check parameter type and spelling

   move_left(3) uses move_left(3) which is correct. moveLeft(3) uses camelCase which is incorrect here. move_left 3 misses parentheses. move_left(three) uses a word instead of a number.

3. Final Answer:

   move_left(3) -> Option A

4. Quick Check:

   Function call with number in parentheses [OK]

Hint: Use function_name(number) with parentheses and digits [OK]

Common Mistakes:

• Omitting parentheses in function call
• Using wrong case in function name
• Passing string instead of number

3. What is the final position of the drone after these commands starting at (0,0)?

move_forward(4)
move_right(3)
move_backward(2)
move_left(1)

medium

A. (3, 4)

B. (3, 2)

C. (2, 2)

D. (2, 3)

Solution

1. Step 1: Track vertical (forward/backward) movement

   Start at (0,0). move_forward(4) moves y from 0 to 4. move_backward(2) moves y from 4 to 2.

2. Step 2: Track horizontal (left/right) movement

   move_right(3) moves x from 0 to 3. move_left(1) moves x from 3 to 2.

3. Step 3: Calculate final coordinates

   Final position is (2, 2).

4. Final Answer:

   (2, 2) -> Option C

5. Quick Check:

   Horizontal = 3-1=2, Vertical = 4-2=2 [OK]

Hint: Add forward/backward to Y, left/right to X [OK]

Common Mistakes:

• Mixing X and Y axes
• Forgetting backward subtracts from Y
• Ignoring left movement subtracts from X

4. Identify the error in this drone movement code:

move_forward(5)
move_left(2)
move_backward()
move_right(3)

medium

A. Missing distance argument in move_backward()

B. move_left should be move_right

C. move_forward cannot be called first

D. move_right has wrong syntax

Solution

1. Step 1: Check each function call for required arguments

   All move commands require a distance number. move_backward() is missing the distance argument.

2. Step 2: Verify other commands

   move_left(2), move_forward(5), and move_right(3) all have correct syntax and arguments.

3. Final Answer:

   Missing distance argument in move_backward() -> Option A

4. Quick Check:

   Functions need distance parameter [OK]

Hint: All move commands need a number inside parentheses [OK]

Common Mistakes:

• Calling move functions without distance
• Confusing left and right commands
• Assuming order of commands matters for syntax

5. You want the drone to move in a square path of 4 meters each side starting at (0,0). Which sequence of commands achieves this?

hard

A. move_right(4)
move_forward(4)
move_left(4)
move_forward(4)

B. move_forward(4)
move_left(4)
move_backward(4)
move_left(4)

C. move_forward(4)
move_right(4)
move_right(4)
move_backward(4)

D. move_forward(4)
move_right(4)
move_backward(4)
move_left(4)

Solution

1. Step 1: Understand square path directions

   A square path means moving forward, then right, then backward, then left, each by the same distance.

2. Step 2: Check each option's sequence

   move_forward(4) move_right(4) move_backward(4) move_left(4) follows forward, right, backward, left by 4 meters each, completing a square back to start.

3. Step 3: Verify final position

   After these moves, the drone returns to (0,0), confirming a square path.

4. Final Answer:

   move_forward(4) move_right(4) move_backward(4) move_left(4) -> Option D

5. Quick Check:

   Square path = forward, right, backward, left [OK]

Hint: Square path: forward, right, backward, left same distance [OK]

Common Mistakes:

• Mixing left and right order
• Not returning to start point
• Using different distances for sides