Table of Contents
How do you make a teeter-totter?
Tip Create a basic drawing of your teeter-totter or print a blueprint to follow. Cut the 2 by 4 piece of lumber into six equal pieces. Drill out the hole in the upper section of the fulcrum posts. Assemble the base and fulcrum. Sand the exposed edges down to rounded corners for safety.
What is a seesaw simple machine?
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. The symbol for fulcrum is ∆.
What do you need to make a seesaw?
How to build a seesaw A – 2 pieces of 4×4 lumber – 24″ long BASE. B – 2 pieces of 4×4 lumber – 15 1/2″ long SUPPORTS. C – 2 pieces of 4×4 lumber – 20″ long VERTICAL SUPPORTS. D – 1 piece of 2×8 lumber – 96″ long SEAT. E – 2 pieces of 2×2 lumber – 10″ long, 1 piece of 1/2″ dowel – 18 1/2″ long 2xHANDLE.
What is the difference between a seesaw and a teeter totter?
In most of the United States, a seesaw is also called a “teeter-totter”. A “teeter-totter” may also refer to a two-person swing on a swing seat, on which two children sit facing each other and the teeter-totter swings back and forth in a pendulum motion.
What simple machine is a seesaw an example of?
An example of a wedge is an ax; An example of a lever is a seesaw; An example of a screw is a screw in the chair that you are sitting in; An example of a wheel and axle is a bicycle with wheels and a chain; An example of a pulley is a flag pole; An example of an inclined plane is a wheel chair ramp.
What class lever is a seesaw?
Note:We have to note here that a seesaw is a case of the first class lever. The fulcrum can be placed anywhere in between the effort and the resistance in a first class lever. Crowbars, shears and pliers are also a good example of this class of levers.
Is a seesaw An example of push or pull?
The work, force applied to the lever, is the person sitting on the other end of the seesaw. The force that is applied by pushing down/pushing up on one end of the seesaw can substitue for the mass on the other end. The longer the lever, the less force one needs to lift a heavy object.
How do you make a homemade lever?
First-class lever activities: Take two cups. Tie a string to one hole on a cup, then thread it through the hole on one end of a stick. Tie the end of the string to the other hole in that cup. Now, take the second cup. Hold the stick on its side, with the cups hanging down. Put weights in the cups to balance.
What kind of simple machine is a grocery cart?
A wheel and axle allows us to roll things instead of carrying them. Think about a grocery cart with wheels and axles. It is easier to move the bag of groceries in a cart than it is to carry it. A pulley is a simple machine.
What is a seesaw made of?
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.
How long is a seesaw?
The see-saw (sic) shall consist of a sturdy plank measuring approximately 12 feet (365cm) in length and measuring between 11 inches (28 cm) and 12 inches (31cm) in width.
What do the British call a seesaw?
Our Living Language The seesaw is known regionally by many names. In southeast New England it is called a tilt or a tilting board.
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 will happen if on a seesaw one child gets up suddenly Why?
If a child gets up suddenly on a seesaw and at the same time other side of the seesaw will give fall of to the ground because the weight of both the children were balance and when one gets up the weight gets unbalanced and that’s why the other side will give a drop.
How do you make a Fibreglass slide?
Mix two gallons of the fiberglass epoxy resin and the hardener (2:1 ratio) in a plastic bucket. Use lacquer thinner and a cheesecloth rag to scrub the surface of the coated slide. Lay the fiberglass fabric over the slide, being sure that the center line of the fabric is in the middle of the slide.
Is a wheelbarrow a simple or compound machine?
A wheelbarrow is a compound machine that is popularly used to carry heavy loads. It has two simple machines, the wheel and axle and the lever that helps to make the load lighter and simpler to move around. When you pick up the handle of the wheelbarrow and raise it, you are actually applying effort to the lever.
What kind of lever is a wheelbarrow?
In second class levers the load is between the effort (force) and the fulcrum. A common example is a wheelbarrow where the effort moves a large distance to lift a heavy load, with the axle and wheel as the fulcrum. In a second class lever the effort moves over a large distance to raise the load a small distance.
Is a flagpole An example of a pulley?
There are many examples of pulleys in everyday life. However, a flag pole is a simple example. A flagpole uses a pulley to raise a flag far above your head. It also helps to bring the flag back down.
How do you find the ma of a seesaw?
To calculate MA of a seesaw you need to multiply the Effort Force and Resistance Force or in the case of a seesaw or any lever Effort Distance and Resistance Distance.
How is seesaw An example of lever?
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.
What simple machine is a nutcracker?
A nutcracker is an example of a second-class lever. The fulcrum in the nutcracker is at one end, where the two metal rods of the device are hinged together. The effort force is applied at the opposite ends of the rods, and the resistance force, the nut to be cracked open, lies in the middle.