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Science and education toy science experiment model airplane novelty toy educational toy
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Product Name: KX1903 "Moonlight Chase" Air-propelled Electric Vehicle
Product Code: KX1903
Size: 125*75*145mm
Weight: About 110g
Material: plastic parts + transparent box + EVA + wheels + axles + eyes + motor assembly + double-sided tape + screws.....
Packing: pcs
Box Specification: mm
In ancient times, people invented the two-wheeled cart pulled by horses (or oxen, donkeys), which can be confirmed by the excavation of the Terracotta Army and many ancient relics and murals. Xuan was a kind of ancient carriage with a higher front and a tent, for the use of officials and above. Wen was an ancient kind of military vehicle, a four-wheeled cart, covered with raw cowhide, which could accommodate ten people, and could also be used to transport soil to fill ditches, mainly for the main task of attacking the city. Wen car was an ancient type of reclining car, it is said that when Qin Shi Huang died outside, he was transported back to the palace by a Wen car. Zi car was an ancient kind of large car with a canopy, which could be used to carry goods and also as a reclining car. In short, the ancient people were very intelligent and clever, inventing a variety of vehicles. These "riding horses" symbolize the identity and status of the noble and wealthy. However, most of these cars were drawn by animals. Today, we sit in a small car that moves by wind power.
1. Principle hint, "interaction force": Interaction force occurs when one object exerts a force on another object, and the affected object will certainly return an equal and opposite force to the object that applied the force. This pair of forces are mutually called action and reaction forces, and a pair of interaction forces must be generated and disappear at the same time.
2. Understanding the 'Wind-powered Cart' Principle: The force between two objects is always mutual, and the action force and the reaction force are always equal in size and opposite in direction, acting along a straight line. When a person pushes against a wall, this force is the action force, and the wall will give you an equal and opposite reaction force. The wind-powered cart uses this principle to make the cart move forward!
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