Equations for physics 낱말 카드 | Quizlet
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20 Terms
Equation for density
Density = mass/volume (p = m/v)
Density equation
D=m/v
Equation for moment
P=mv ( moment= mass x velocity)
Fluid pressure equation
P = pgh (density, gravity, depth)
Pressure equation
pressure = force/area
Work equation
work = force x distance moved
Law of conservation of momentum
Total momentum before = total momentum after
principal of moments
sum of clockwise moments = sum of anticlockwise moments
Equation for momentum
momentum = mass x velocity
Equation for impulsive force
Impulsive force = change in momentum/ time
Impulse equation
mv-mu (change in momentum) or force x Change in time
equation for kinetic energy
KE=1/2mv^2
Equation for force
F=ma
Weight equation
W=mg
Equation for Hooke's law
F=kx (F=force, k= spring constant, x= extension)
Equation for power
P=W/t (work/time)
Equation for gravitational potential energy
GPE=mgh (mass x gravitational field strength x height)
Equation for efficiency
Efficiency= Useful energy output / total energy input x 100
Acceleration equation
Final - initial velocity /time
학습 중 (18)
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