This is a DC motor that rotates faster than a DC motor with 130 RPM. Here, RPM stands for “Revolutions Per Minute,” indicating the number of rotations the motor makes in one minute.
① How many DC motors can be connected to a single motor port on the CPU board?
A. 1
B. 2
C. 3
D. 4
Answer : B.
② Is it true that DC motors connected to the same motor port operate in the same direction and speed?
A. Yes, that's correct.
B. No, that's incorrect.
Answer : A.
③ Is it true that if the DC motor cable is connected in reverse to the motor port on the CPU board, the DC motor will rotate in the opposite direction?
A. Yes, that's correct.
B. No, that's incorrect.
Answer : A.
④ What is the function of the ‘servo motor steering device’?
A. Allows the robot to be controlled by a remote control.
B. Allows the robot to stop.
C. Allows the wheels to rotate faster.
D. Allows the direction of a car-type robot to be changed.
Answer : D.
2) HARD
⑤ In ‘DC motor 130RPM’, what does ‘RPM’ stand for?
A. Revolutions per millisecond
B. Revolutions per second
C. Revolutions per minute
D. Revolutions per hour
Answer : C.
⑥ How many revolutions per minute does a DC motor with 130RPM make?
A. 100
B. 110
C. 120
D. 130
Answer : D.
⑦ How many revolutions per minute does a DC motor with 300RPM make?
A. 100
B. 200
C. 300
D. 400
Answer : C.
4. Coding Quiz
1) EASY
① What is the code to make only the DC motor connected to the M1 port on the CPU board rotate?
A.
B.
Answer : A.
② What is the code to set the variable ‘speed’ to 10?
A.
B.
Answer : A.
③ What is the code to decrease the variable ‘speed’ by 5?
A.
B.
Answer : B.
④ What is the code to set the variable ‘speed’ to 15?
A.
B.
Answer : A.
2) NORMAL
⑤ What is the code to set the variable ‘speed’ to 10 when the remote control button 7 is pressed, and to 20 when button 8 is pressed?
A.
B.
Answer : B.
⑥ What is the code to increase the variable ‘speed’ by 1 when the remote control button 5 is pressed, and decrease it by 1 when button 6 is pressed?
A.
B.
Answer : B.
⑦ What is the code to make the DC motor rotate at the speed of the variable ‘velocity’ when the remote control button 1 is pressed?
A.
B.
Answer : B.
3) HARD
⑧ What is the code to ensure the value of the variable ‘velocity’ cannot be less than 1 or greater than 20?
A.
B.
Answer : A.
⑨ What is the code to make the DC motor rotate at the negative speed of the variable ‘velocity’ when the remote control button 2 is pressed?
A.
B.
Answer : B.
⑩ Which code is better for changing the speed gradually to avoid sudden changes in speed?
A.
B.
Answer : B.
5. Product Usage Precautions
1) Handling and Cautions
Keep the product away from open flames to avoid fire and product damage.
This product is an educational robot with electronic functions. Store it away from water and moisture to prevent malfunction.
Avoid shaking the product excessively or subjecting it to strong impacts, as this may cause damage or malfunction.
Be cautious during assembly to prevent fingers or other body parts from getting pinched.
Turn off the power after use. If not used for more than a week, remove the battery from the product.
Be careful of sharp parts on the components during use.
Never throw the product at people or animals.
Small parts pose a choking hazard; do not put them in your mouth or swallow them.
2) Battery Usage Precautions
Ensure correct polarity (+ and -) when inserting batteries into the battery case.
Turn off the CPU board before replacing the batteries.
Seek assistance from an adult when inserting or removing batteries.
Improper battery usage may cause overheating, rupture, or leakage of internal liquids.
If battery fluid gets into the eyes, rinse immediately with water and seek medical attention. If it contacts skin or clothing, wash with water immediately.
Do not mix old and new batteries or different types of batteries.