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First of all, the seesaw is based on the principle of leverage.
A kind of recreational facility. We often see such amusement facilities in public places, and children love to play with seesaws, which are used in various entertainment venues.
Seesaws are set up in almost all places where there are amusement facilities because they are so popular with children. So why is this fun facility using the principle of levers, because in the middle of the seesaw is a fulcrum, and the seats are set at both ends, and a child is sitting on one side, and both ends of the seesaw can be lowered by a little pressure. Because the weight on both sides of the fulcrum of the seesaw is the same, if no weight is applied, the seesaw should theoretically remain in a balanced state.
However, due to the fact that the seesaw is usually exposed to the wind and sun, the weight on both sides is not exactly the same, and some of the workmanship is not exquisite enough, so it cannot reach such an ideal state.
Secondly, the seesaw is flanked by seats that can sit on it for two children, even though the seesaw itself is iron and heavy, but since the weight on both sides is almost identical, applying any little pressure at either end will cause one end of the seesaw to be cocked and one end lowered. This is one of the reasons why the seesaw has the power to be able to move. In addition to this, the weight of the two children will certainly not be exactly the same, so there will always be a child on the seesaw who is slightly heavier, and the heavier child will go down.
But at this time, the person itself can use force, so the child sits on the seesaw, and if he sits down a little, he will let himself sink a little, which greatly increases the fun of the seesaw.
Finally, to sum up, we know that the seesaw is an entertainment facility that uses the principle of leverage, and because the weight of its two ends is almost identical, it adds a lot of fun to the children, so it is widely popular with children, so that the major entertainment facilities will give the seesaw a place to stay.
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The seesaw uses the principle of balance, when the other side is heavier than the other party, it will generate a certain amount of power, so this is also the simplest principle in physics.
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The seesaw is actually the use of the principle of levers in physics, and the pressure of people on the seesaw is actually the power and resistance of the seesaw.
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The rocker is the principle of lever balancing. It is not powered by itself. It is the weight of the person that makes him fall in favor of the heavier side.
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Because when a person sits on it, the person's gravity will create pressure, which will cause the rocker to press down, causing the other side to be warped.
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If you put a weight on either side of the seesaw and give it a force to move, and then put an energy receiver next to it to convert that energy into electricity, or whatever, you don't get a perpetual motion machine
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<>1. The seesaw uses the principle of leverage.
An adult and a child can play with the seesaw, the child is far away from the fixed point of the seesaw, and the adult can get close to the fixed point of the seesaw to lift the adult up;
2. The seesaw principle is the use of the lever principle, the pressure of the person on the seesaw is the power and resistance, and the distance from the person to the fixed point of the seesaw is the force arm.
Although the weight of the adult is large, as long as the adult's arm is short enough, the product of the man's arm and weight can be smaller than the product of the child's arm and weight, and the adult is stilted up;
3. The principle of leverage, also known as the lever balance condition, to make the lever balanced, the two moments acting on the lever, that is, the product of the force and the force arm, must be equal to the old trembling.
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A seesaw, a children's toy in which more than two people participate. Sitting on a seesaw, one person sits on the other, one goes up and one person comes down.
The seesaw principle is the principle of leverage, the pressure of the person on the seesaw is the power and resistance, and the distance from the person to the fixed point of the seesaw is the power arm and the resistance arm respectively.
The downward acceleration leads to an up and down, and the downward acceleration of the higher one is greater than that of the low one, so the higher one falls, and at the same time, the low one is cocked up under the action of the lever principle, and so on.
Precautions
1. Only one child can sit at one end of the seesaw. If the weight difference between the two children is too large, you can discuss with the child to play with a child of similar weight, rather than sitting on the lighter end of the child.
2. If other children are playing on the seesaw, keep their distance while waiting next to them. Never put your feet under a raised seesaw, stand in the middle of the beams of a seesaw, or try to climb onto a seesaw that is being warped up and down.
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When playing seesaw, the movement of the seesaw is rotation. But the situation of the person who plays the seesaw is more complicated: if the state of the person and the seesaw remains the same, then Kai does the man and the seesaw together with the spinning.
If the person is always perpendicular to the ground guard, then the person's motion is translational; If a person is still shaking at random while playing with a seesaw, then the person's motion is not a rigid body motion – neither translation nor rotation.
Nature of Translation:
1) The shape and size of the figure before and after translation do not change, only the position changes.
2) After the graph is translated, the line segments formed by the corresponding points are parallel (or on the same straight line) and equal.
3) Multiple successive translations are equivalent to one translation.
4) The figure after even times of symmetry is equal to the figure after translation.
5) The translation is determined by the direction and distance of the dusty oak.
6) After translation, the corresponding line segments are parallel (or collinear) and equal, the corresponding angles are equal, and the line segments connected by the corresponding points are parallel (or collinear) and equal.
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1. The seesaw uses the principle of leverage, an adult and a child can play with the seesaw, the child is far away from the fixed point of the seesaw, and the adult can get the adult up close to the fixed point of the seesaw;
2. The seesaw principle is the use of the lever principle, the pressure of the person on the seesaw is the power and resistance, the distance between the person and the fixed point of the seesaw is the force arm, although the weight of the adult is large, but as long as the adult's force arm is short enough, the product of the large manpower arm and the weight can be smaller than the product of the child's strength arm and the weight of Hongsen, and the adult is stilted up;
3. The principle of leverage, also known as the lever balance condition, to make the lever balance, the two moments acting on the lever, that is, the product of the force and the force arm, must be equal to the mu.
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