Simple Machines

Here is a list of them - Pulley, Wheel and Axle, Wedge, Screw, Incline Plane, and Lever. A complex machine is a machine made up of more than one machine. An example would be a car it is a wheel an axel, and a lever and many more.

MA - Mechanical Advantage

Mechanical advantage is how much easier a job will be if you used a simple or complex machine when doing work. Output force is what you get out of it, and input force is what you physically put in.

St. Patricks day

No I don't believe in Leprechauns. Also the more input force the more output force and so on. The shorter wedge takes more force than the longer wedge.

Wedges, lever, and Incline Plane

I learned that the placement of the fulcrum is vital. It is a lot easier if it is closer to you. It decides whether or not the relationship is Direct or Inverse. Direct is when one goes up the other goes up, and inverse means when one goes up the other goes down. I discovered incline planes are used as ramps, and an incline plane would be easier to use if it was long, and some factors that could effect it would be the weather.

Wheel & Axel

I learned that a wheel and axel makes work alot becuase i tmakes it easier to lift an object. A screw can also make it much easier to lift objects. The mechanical advantage depends on how big the wheel is and how big the threads are. The wider the thread the more force it takes to lift the object. The high the MA the more effective the machine. So it is more efficient with higher MA.

Wheel and Screw!

The radius of the wheel and also the diameter of the screw affect how much work is needed to complete the job. When the radius of the wheel is bigger the force needed to lift something is less but when the radius of the wheel is smaller the force needed increases that is very similiar with the screw. The mechanical andvantage is the biggest when the screw and wheel are very big.

KE & GPE

Gravitational Potentional Energy is taking Joules divided by gravity times height. to find mass. The KE is KE = 1/2mv^2. No I did not get to go. I was going to but after school I usually lift weights till 6, and when I was done I forgot. Sorry.