physical science chp 13. work + simple machines

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Geometry & Trigonometry

3D Shapes

10th

Last updated 8:04 PM on 11/15/22
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35 Terms

1
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electrical energy
energy derived from the flow of charged particles
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work
is a quantity that measures the effects of a force acting over a distance
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lever
a bar that has a fixed pivot point and is used to do work is a
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wedge
a moveable inclined plane with one or two sloping slides
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Power
is a quantity that measures the rate at which work is done
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mechanical energy
the sum of kinetic and potential energy of large-scale objects in a system is
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mechanical advantage
a quantity that measures how much a machine multiplies force or distance is
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wheel and axle
is made of a lever and connected to a shaft in the middle
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inclined plane
a fixed sloping surface used to do work
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Joule
the SI unit for the measurement of work and energy
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Pulley
A rope or chain wrapped around a grooved wheel
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Energy
the ability to do work or to cause change
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nuclear energy
energy in the nuclei of atoms. fusion and fission
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potential energy
the stored energy resulting from the relative positions of objects in a system
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kinetic energy
the energy of a moving object due to its motion
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screw
inclined plane wrapped around a cylinder or post
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Watt
the SI unit for the measurement of power
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chemical energy
energy stored in the bonds of atoms different substance
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simple machine
a device that makes work by reducing force required
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compound machine
made of more than one simple machine
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Law of Conservation of Energy
Energy cannot be created or destroyed, only transformed
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What class is a bottle opener?
1st
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What class are pliers?
1st
24
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What class is a broom?
3rd
25
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What class is a fishing pole?
3rd
26
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What class is a seesaw?
1st
27
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What class is a wheelbarrow?
2nd
28
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What class is a baseball bat?
3rd
29
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What mechanical advantage does this pulley have?
What mechanical advantage does this pulley have?
1
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What mechanical advantage does this pulley have?
What mechanical advantage does this pulley have?
2
31
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What mechanical advantage does this pulley have?
What mechanical advantage does this pulley have?
2
32
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What class is this lever?
What class is this lever?
1st class
33
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What class is this lever?
What class is this lever?
3rd class
34
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What class is this lever?
What class is this lever?
2nd class
35
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What class is this lever?
What class is this lever?
1st class