Simple Machines (engineering)

Simple Machines allowed the builders of the Great Wall of China to build more quickly and efficiently. Machines such as levers and inclined planes allowed the amount of energy spent to do the work to be decreased. Other machines such as pulleys allowed objects to be transported up and down the wall with greater ease. Wedges were incorporated in the hammers that the Chinese used to pound the earth and all the materials of the Wall together.

• the answer to your question is easy the simple machine a wagon wheel is a wheel and axel

Some simple machines include:

your teeth- wedges

arms- levers

legs-levers

finger nails- inclined planes

elbow-lever

knee-lever

tendons- pulleys

no because it isnt simple

Simple machines are the most basic ways of making work easier or more efficient. There are 6 of them (if the different kinds of levers are considered the same simple machine): Inclined plane: Spreads out the work needed to move the object, so less is needed at once. Lever (first class): Changes direction of force applied. Load is on the opposite side of the fulcrum than the side that the force is applied on. Lever (second class): The load and force are on the same side of the fulcrum, with the force being applied further from the fulcrum. The work is easier, but the load isn't lifted as high. Lever (third class): Similar to second class levers, the load and force are on the same side as the fulcrum, but the force is closer to the fulcrum. The work is therefore harder, but the load is lifted more efficiently Wheel and axle: Just what it sounds like. The wheel is a simple, but brilliant tool that makes it so the inside and the outside make the same amount of rotations in the same amount of time, but move at different speeds. Turning the axle makes the outside of the wheel move fast, while turning the outside of the wheel makes turning the axle easy. Pulley: Made up of a wheel and a rope, the rope fitting on the groove of the wheel. This machine can either change the direction of the force, increase the efficiency of lifting a load, or make lifting the load easier. The more times the rope goes around a set of two wheels, the more efficient the pulley gets Screw: Changes the direction of force from around in a circle to down. The tool the "Screw" was named after this simple machine. Wedge: Also changes the direction of force from in one direction to out. This is used by scissors, axes, knives, or anything else that can cut.

Pliers are composed by two opposing levers.
pliers are levers of type 1.
Pliers are a specialty tool comprised of two first class levers: the fulcrum is located between the force (where you squeeze) and the load (what you would be squeezing).

It is a compound machine because it is built with more than one simple machine

1. lever
2. wheel and axle
3. wedge
4. screw

No. A stapler is considered a compound machine since it is made up of more than one simple machines - the lever and the wedge. Some internet sources include the inclined plane and wheel and axle.

wedge and a lever and other stuff

A winch is a geared (lever advantaged) device that is used for drawing large weights. Often comprises a steel cable, hook and spool. Tow truck use a winch to pull a staled auto onto a trailer.

Compound, many different things combine to create a catapult.

lever arm,

torque battery (twisted rope)

winding mechanism

firing control (ratchet system with trigger)

I believe the simple machines in mousetrap would be things such as a lever ( the marble go down a ramp) with a fulcrum, and an input and output force acting on it. ( the marble is weight on the lever)Also, there should be a screw for anything that does a twisting movement, a ramp ( inclined plane), a pulley for capturing a mouse, and a wheel and axel ( anything that function that will spin a wheel.) I'm not to confident on Mousetrap, but those should be the basic functioning machines.

By simple machines, I assume you mean machines powered by muscle but using leverage such as levers, screws, block and tackle devices. Is that what you mean? If so, these devices increase something called "mechanical advantage".

Start with levers. The usefulness of a lever depends on where the fulcrum is placed. If the fulcrum is in the centre of a lever such as with a see-saw, there is no mechanical advantage at either end. That's why kids of similar weights can suspend the kid on the other end of the see-saw up in the air just to be rascals. Now if the fulcrum is closer to one end than to the other, the person farther from the fulcrum can exert more force than the person closer to the fulcrum. Think of a crow bar. One inserts an inch or two of the bar at the point where one wants to apply force. Pushing on the other end of the bar (perhaps two, three, four feet away) exerts a lot of force at the other end. The same effect allows you to lift a car with a jack. You push down a foot on the jack handle and the jack platform rises perhaps half an inch.

A sewing machine is a compound machine.

To make up a sewing machine, the simple machines you need to use are: an inclined plane, definitely a lever, lots of screws, wheels and axles, a wedge..................... you basically have to use all the simple machines!

go on http://www.fi edu/qa97/spotlights3 or http;//www.mos.org/s1n/leonardo/inventorstoolbox.html

A hand pump is not a simple machine. A simple machine is the lever, pulley and screw also might include the wheel and axle, wedge and inclined plane.

A hand pump would have some valves for lifting the water.

There are 6 simple machines known as a wheel and axle, pulley, gear, inclined plane, lever, and a screw. A wheel and axle is anything that rolls. A pulley is like a crane. Pulleys help lift heavy objects easily and safely. Gears help the car stay in control and help it to move. Inclined planes are anything just standing on high surfaces. A lever is like a top of a teeter totter such as seesaw. A screw is like a screw you see everyday. It goes though an object to help hold it in place so it won't fall out or get unstable.

It is an inclined plane.

There are four simple machines used to make the compound machine known as the lawn mower. These simple machines are the wheel and axle, the screw, the lever, and the wedge.

ummm absolutely none its just wood with graphite inside i think you haave got a bit confused....

for me, the spoon is a simple machine. because it is use to eat. a spoon is useful to eat.. only that if it is a compound machines it can use as many.. in compound machines it can be use as many things...

pulley and two other ones that i dont know