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physics tri 2 (Energy (equations (W=FD, KE=1/2mv^2, W=KE, PE=mgh, E=KE+PE,…
physics tri 2
Energy
equations
W=FD
KE=1/2mv^2
W=KE
PE=mgh
E=KE+PE
KE before + PE before = KE after + PE after
units
joule
watt
law of conservation of energy
Energy cannot be created or destroyed
kinetic energy
energy in the form of motion
potential energy
stored energy due to position
light
Real image
visual image
light color
Blue
Red
Green
these colors make white
Pigment color
Cyan
Magenta
Yellow
these colors make black
Sound
Wavelength
one crest to another crest or trough to another trough
amplitude
length or crest of trough to the midline
trough
Bottom of the wave
crest
top of a wave
machines
compound machine
2 or simple machines working together
simple machine
Lever
screw
inclined plane
wedge
Pulley
Wheel and axle
Equations
MA= Fr/Fe
IMA= de/dr
Efficiency= W out/ W in X100%