what are some examples of  a lever pully wheel and axle wedge screw and inclined plane?
97924
lever- prybar, see-saw, door hinge\npulley - block and tackle, bike chain and cog\nwheel and axle- car wheel, bike wheel, lazy susan, \nwedge- knife, incisor tooth\nscrew- wood screw, the opening on a cement mixer where the cement is pushed out using Archimedes screw\ninclined plane- winding, switchback road up a mountain, wheel-chair ramp
965628
A simple machine is one with few or no moving parts. Examples of simple machines are Screw, Wheel and Axle, Wedge, Pulley, Inclined Plane, Lever.\n\nA manual can-opener has these simple machines:\nThe handle you turn to make the can rotate is a wheel and axle.\nThe two long arms that clamp the can securely make a lever.\nThe circular wheel that cuts the can lid is sharpened to make a wedge.
838861
A linear example:\n\nThe demand for some types of products declines linearly with price.  The variables are Price on the x-axis and Quantity demaded on the y-axis.  The line has a negative slope\n\nAnother linear example:\n\nThe speed of your car is approximately a linear function of the force you exert on the pedal.  If you put pedal force on the x-axis and speed on the y-axis, the line will have a positive slope.
199579
Consider the five basic machines, The lever and fulcrum, The inclined plain, The wheel and axle, The screw and the pulley.\n\nStart with a boyscout pine block racer kit, sand the wheels so that the tread is rounded rather than flat to reduce friction. for the undriven wheels put the nails in the wheels and deposit a liberal amount of petroleum based oil on the axle. This will cause the plastic to swell slightly for a good fit to the axles to prevent wobble, be sure to clean all the flash off of the nails first and polish them.\n\nThe driven wheels willneed a fixed axle that connects the wheels.
129525
Most likely, the lever, which is considered a simple machine.
15501
We use wheels and axles for all kinds of cool stuff. Cars, trucks, bicycles, and trains all use wheels and axles. Also, gears, which are a lot like wheels and axles, are used in all kinds of machines. Pulleys are, too. Look at these Wikipedia pages if you need more information.
586326
Here is the "How Stuff Works" website devoted to cars. It has pictures of many of the mechanical systems of automobiles. Very informative.
86587
Gears that are designed with either a known end force or to combat a known end play condition due to loading and unloading, usualy in low rpm applications
624599
Slopes, ever seen a handicapped ramp? An on- ramp to the interstate, and off-ramp. All of these need to be engineered with a specific slope, so as not to either stop or speed up the things traveling on them too much.\n\nCoordinate planes are used in engineering a lot, actually most of the time. And in flight, on the map, the lines of longitude and latitude are a HUGE coordinate plane.
670144
Usually magnets or wedges that are pressed down inbetween two metal rails:\n\n&#92;/\n||\n\nSorry that i couldn't draw well via the keyboard, but imagine the above as a cross section of the wedge, and the lower vertical lines as a cross section of the metal or semi-metal rails...the rails can taper outward a little to create more surface-to-surface contact.  you can imagine the normal force exerted onto one another between the wedge and the rails as the wedge is pushed into the rails, this normal force grows fast quickly as more force is exerted onto the wedge.  and i'm assuming that you're taking or have taken physics courses, so you should know that let's say a box sliding on the floor, has a frictional force of kw, where k is the kinetic friction constant, and w is the weight of the box, for the wedge/rail setup, we would replace w with the normal force, and the equation wouldn't be that simple, in fact, the force would grow almost exponentially as more force is exerted downward on the wedge since the wedge gets wider and wider.  think of it as a brake/rotor setup on a car, but instead of circular, it's linear, and instead of the brake pads squeezing on the rotor, it's the rotor being pushed into the pads.  this similar setup is used on trolley cars, which is why on some trolley trails, you see another pair of rails, situated close together, inbetween the two main rails for the wheels.\n\nnow in an emergency, there is no stopping anywhere else on the roller coaster track except on the boarding/exiting platform.  the engineers made it so that the momentum of the cars will take them through the entire track system no matter what the (realistic) load distribution is.  can you imagine trying to stop an extremely fast set of attached cars on a track with twists, turns, and loops?  and on top of that, the decision when and where to stop the cars is left to some teenage kid in the booth?  very unsafe and unreliable.
51955
rolling wheels with a stick, kick the can, etc
909305
you might try a figure 8 knot, or a stopper knot.\n\nhttp://www.chockstone.org/TechTips/Stopper.htm
736619
you need to be more specific.   for example a pulley where only half the force but for twice as long is necessary to accomplish the task.\nwith a lever, you move the lever farther, but use less force.\n\n\nok, i missed the day in physics class, but i tried.\nhttp://en.wikipedia.org/wiki/Mechanical_advantage
201839
http://images.animationfactory.com/imagedir/animations/machines/factory/compressor_gears_revolving/compressor_gears_revolving_lg_nwm.gif
501177
There are various things you can use. Try CDs, toy wheels, cotton reels...\n\nLook for objects with low 'rolling resistance' and a large diameter. This will help it go further. Good luck!
255907
No, a wedge (aka an inclined plane) is a plane set at an angle to the horizontal, especially a simple machine used to raise or lower a load by rolling or sliding.\n\nA hammer is a hand tool that has a handle with a perpendicularly attached head of metal or other heavy rigid material, and is used for striking or pounding.
954062
put an arm perpindicular on the shaft, put another arm pinned to the first, and slide the second through a sleeve.\n\njust like an old fasioned steam engine turned linear movement (piston) into rotary(drive wheel