Shared Flashcard Set

Details

Science CH 14 study guide
study guide
30
Science
12/09/2012

Term
 What are the six simple machines?
Definition
 inclined plane, lever, wheel and axle, screw, wedge, and pulley
Term
 flat, sloped surface
Definition
 inclined plane
Term
 when a force causes an object to move in the same direction that the force is applied
Definition
 work
Term
 push or pull
Definition
 force
Term
 inclined plane that moves
Definition
 wedge
Term
 the number of times a machine increases the input force
Definition
Term
 how quickly work is done
Definition
 power
Term
 the force you apply on a machine
Definition
 input force
Term
 rigid rod that pivots about a point
Definition
 lever
Term
 force that a machine applies
Definition
 output force
Term
 ratio of the output work to the input work
Definition
 efficiency
Term
 consists of a grooved wheel with a rope or cable wrapped over it
Definition
 pulley
Term
 machine that does work with only one movement
Definition
 simple machine
Term
 machine made up of a combination of simple machines
Definition
 compound machine
Term
 inclined plane wrapped around a post
Definition
 screw
Term
 2 circular objects of different sizes that are attatched in such a way, they rotate together
Definition
 wheel and axle
Term
 What is the equation for work?
Definition
 W=FD
Term
 What is the SI unit for work?
Definition
 joule
Term
 Who is the SI unit for work named after?
Definition
 James Prescott Joule
Term
 What is the SI unit for power?
Definition
 watt
Term
 Who is the SI unit for power named after?
Definition
 James Watt
Term
 device that makes doing work easier
Definition
 machine
Term
 combination of a fixed and movable pulley
Definition
 pulley system
Term
 What fills the gaps between the surfaces and keeps many of the high spots from making contact?
Definition
 oil
Term
 doesn't change the force you exert or the distance exerted
Definition
 fixed pulley
Term
 allows you to exert a smaller force to lift the objects
Definition
 movable pulley
Term
 What are 2 examples of a wedge?
Definition
 axe and certain doorstops
Term
 point about which the lever pivots
Definition
 fulcrum
Term
 What's another term for inclined plane?
Definition
 ramp
Term
 What is the equation for power?
Definition
 P=W/T
Supporting users have an ad free experience!