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 Flashcards Matching Hangman Crossword Type In Quiz Test StudyStack Study Table Bug Match Hungry Bug Unscramble Chopped Targets

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# 3.3

There are a total of three types of simple machines. False, there are a total of SIX types of simple machines.
When you turn a screw into a piece of wood, the __________of the screwdriver is converted to an output force by the threads of the screw. input force
The length of a wheel's input arm is the __________ of the wheel. radius
What is a simple machine, and what are the six types of simple machines? Six types of simple machines, do work using only one movement. They are lever, wheel and axle, inclined plane, wedge, screw, and pulley.
What is a compound machine? Two or more simple machines that operate together form a compound machine.
How do you calculate the overall efficiency of a compound machine? The efficiency of a compound machine is calculated by multiplying the efficiencies of each simple machine together.
List three examples of lever hammer pulling a nail, crowbars, and pliers
An shovel is a example of what simple machine? Wedge
List three examples of pulley elevators, wells, and a flagpole
A wedge that splits wood is what type of machine? WE(wedge) or L (lever)
Sailboat mast is what type of machine? P (pulley)
An example of an inclined plane is what? wheelchair ramp
Second-class lever a wheelbarrow
________ is a flat, sloped surface. inclined plane
________ is a sloped surface that moves. wedge
Each simple machine _____________ the overall efficiency of the compound machine. decreases
The wedge is a ___________ because the handle must be used by a person to force the wedge into the wood. compound machine
suppose the efficiency of the wedge portion of a wedge that splits wood is 90 percent (or 0.9) and the efficiency of the lever part of it is 80 percent (or 0.8) What is the efficiency of the machine? 0.72 or 72%
Created by: grupeabi2506