Download Simple Machines Study Guide Answers

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Simple Machines Study Guide
Define the words below using complete sentences.
Simple Machine
A device that makes work easier by changing the size or
direction of the applied force
Mechanical Advantage
A number that tells how many times a machine multiplies
force
Output Force
Work done by the machine on an object. Machine applies a force
Input Force
Force you apply to a machine through a distance
Explain how you find the mechanical advantage of each machine.
Screw
Circumference / Pitch
Lever
Output Force / Input Force
Inclined plane
Length / Height
Pulley
Number of Segments
Wheel and Axle
Radius of Wheel / Radius of Axle
Wedge
Length / Greatest Thickness
Explain what you learned in each of the labs listed below.
Screw Lab
You can increase MA by increasing length of inclined plane. This
reduces the pitch
Lever Lab
To increase MA, move the fulcrum closer to the load side
Inclined Plane Lab
To increase MA you can increase length or ramp or decrease its
height