What is the science behind seesaw?
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What is the science behind seesaw?
A seesaw is a specific type of lever; it consists of a long beam attached to a pivot called the fulcrum. As soon as you put weight on one end by sitting on one side of the beam it drops to the ground. This is because the force of gravity is acting on the weight of your body, pulling it and the beam down.
Who named the seesaw?
There appears to be no record of who might have invented the “seesaw”. In 1640 there was rhythmic song sung by children and workers cutting logs with a two person saw; to go with the back and forward motion of the saw and the name was derived from the French word “sie”.
What does a seesaw stand on?
seesaw Add to list Share. A seesaw is a piece of playground equipment made of a board balanced on a center support. To play on a seesaw, you sit on one end with a friend on the other end, moving up and down. You might also call a seesaw a teeter-totter — they are common in parks and on school playgrounds.
Why are seesaws banned?
Once ubiquitous, seesaws have largely vanished in the United States because of safety concerns and changing tastes. Playground safety advocacy groups see that as a good thing. But others see a downside in society’s increasing over-caution when it comes to child-rearing.
What simple machine is a see-saw?
lever
A lever consists of a rod or plank that is free on both ends, like the plank of a seesaw, and some steady object on which the plank can rest, like the center post of a seesaw. The fixed center point on which the plank moves is called the fulcrum.
Where is seesaw pronounced?
Teeter or teeterboard is used more generally in the northeast United States, while teeter-totter, probably the most common term after seesaw, is used across the inland northern states and westward to the West Coast.
What is the difference between seesaw and Google classroom?
Seesaw and Google Classroom are both sleek platforms for organizing student work. While Google Classroom is great for streamlining the management of classes, assignments, grades, and parent communication, Seesaw shines as a digital portfolio tool that incorporates teacher, parent, and student feedback.
Why are there no merry go rounds?
Merry-Go-Rounds While there are a few still to be found on older playgrounds, most have been ripped out in favor of safer, less rust-prone alternatives. The main reasons: Lawsuits in New Jersey and elsewhere have made officials too skittish to keep this classic piece of equipment.
Do seesaws still exist?
In 2000, 55 percent of playgrounds around the nation had a seesaw, according to the National Program for Playground Safety, which makes estimates based on visits to about 3,000 parks. Yet the seesaw remains paramount in the public consciousness, along with swings and slides, as a playground staple.
What simple machine is a stapler?
The six simple machines are: the wheel and axle, pulley, screw, inclined plane, wedge, and lever. a wedge is also a simple machine. The top arm of the stapler is a Lever, it has a fulcrum or a pivot point, which allows the top of the stapler to move up and down.
Why is a teeter totter a lever?
When a force is used to move something, work is done. The amount of work depends on the amount of force and the distance moved. A seesaw or teeter-totter is a simple machine found on a playground. It acts as a lever, which is simply a bar or rod that pivots (turns) on a point called a fulcrum.
What do Canadians call a seesaw?
Teeter
Clearly the USA and Canada are the only countries that use the word “Teeter”! The rest of the world uses “Seesaw” or a different country-specific word. Looking at Canada only 2 of 54 people used “Seesaw” and 2 used other words so they were even more homogenous than the USA in their use of “Teeter”.