What does the seesaw mean?

The seesaw is a kind of children's game equipment. Put a shaft in the middle of a long, narrow and thick board, and then put it on a post. Two people sit opposite each other and take turns to push the ground, so that one end lifts and the other end falls, and so on. The game is just for fun.

The principle of seesaw is lever principle, the pressure of people on seesaw is power and resistance, and the distance from people to the fixed point of seesaw is power arm and resistance arm respectively.

The downward acceleration leads to an upward downward acceleration, and the high downward acceleration is greater than the low acceleration, so the high one falls, while the low one inclines upward under the action of the lever principle, and so on.

Matters needing attention in playing on the seesaw

1, let the child hold the handle tightly with both hands, and don't try to touch the ground or empty-handed. Put your feet in a special pedaling place. If you don't have a pedal, you can hang down naturally. Don't curl up under the seesaw, or the seesaw will press your child's feet.

2. If other children are playing on the seesaw, keep your distance while waiting nearby. Never put your feet under the upturned seesaw, don't stand in the middle of the beam of the seesaw, and don't try to climb the seesaw that is tilting up and down.