What Is A Lever? A lever is a simple machine consisting of a bar that rotates around a fixed point. The fixed point of a lever is called the fulcrum. Like other machines, a lever makes work easier by changing the force applied to the machine or the distance over which the force is applied. Classes of Levers Other levers change force or distance in different ways than a hammer removing a nail. How a lever changes force or distance depends on the location of the input and output forces relative to the fulcrum. The input force is the force applied by the user to the lever. The output force is the force applied by the lever to the object. Based on the location of input and output forces, there are three basic types of levers, called first-class, second-class, and third-class levers. Classes of Levers Class of Lever Example of Lever in This Class Location of Input & Output Forces & Fulcrum* Ideal Mechanical Advantage Change in Direction of Force? First class
njkqdxo If you wanted to try familiarize yourself before tomorrow Login to your google drive and you will have an email invite or you can go to the 9 dots in the top right side of the screen and scroll down to google classroom then type this class code!
There are 78 people going on a field trip to the zoo. They need to drive in cars to get there. If each car holds 6 people, how many cars are needed to take all the visitors to the zoo? 1. Use numbers to represent your thinking. (Show the equation and workings) 2. Words to represent your thinking. (Write your answer in sentence form) 3. Pictures and/or symbols to represent your thinking. (Draw a visual representation of this problem) If possible take a photo of your work and email it to me.
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