Newton thought, this apple is ripe. Why did it fall to the ground instead of flying into the sky? Later, Newton did a lot of research work and finally discovered the existence of gravity on the earth, that is, gravity acts on objects. Because of the gravity of the earth on objects, everything falls, and we are standing on the ground. If the gravity of the earth disappears, then maybe if I touch Bao Xiao lightly, Bao Xiao will fly out at once. Similarly, on the moon, the moon is also attractive to the objects above it, that is, the gravity of the objects on the moon, but the gravity is only one-sixth that of the earth. How to understand this? The strength of the moon catching astronauts is only one-sixth that of the earth catching astronauts, so astronauts can jump very high with a little jump. You can imagine yourself walking in a swimming pool. Because the buoyancy of water counteracts part of the gravity of the earth, you can jump up with a light pedal at the bottom of the swimming pool. Walking on the moon is the same.
In addition, in the environment where the gravity of the moon is only one-sixth of that of the earth, if people move quickly, it is easy to lose their balance and fall. But even if it falls, it should not hurt, because the gravity is small, the falling speed will be slow and it will slowly fall to the surface of the moon. But in any case, it is better not to fall.
The astronaut's walking action is also related to his spacesuit. The astronaut's spacesuit can keep the astronaut's body temperature; It can keep the pressure on the astronaut's body surface, because the surface of the moon is vacuum and there is no air, so there is no air pressure; Can protect astronauts from harmful space rays; It can also provide the astronauts with oxygen and carbon dioxide. Because the design of spacesuits is more functional, the early spacesuits restricted astronauts from doing some actions. Finally, the astronauts found that it is most convenient to take a step forward like a kangaroo on the moon.