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Exam 1-Phys. Science

physical science, physics, Dr. Herr

QuestionAnswer
Temperature C=(F-32)/1.8 or K=C+273
Heat Q=mc(t2-t1), unit is calories
Universal gas law v1p1/t1=v2p2/t2
Wave energy V=f(lambda)
Velocity v=(Df-Di)/t, unit is m/s
acceleration a=(Vf-Vi)/t, unit is m/s2
force F=m(a), unit is kg m/s2 (Newtons)
weight Wt=m(g), unit is Newtons
momentum p=mv, unit is km m/s conservation of: m1v1=m2v2
force of Gravity F=G(m2m2)/r2, unit is Newtons acceleration of: g=9.8 m/s2
work w=f*d, where d is direction
potential energy PE=m*g*h, unit is Joules
kinetic energy KE=1/2(m)v2, unit is Joules
power P=w/t, unit is Joules/sec or Watts
Centripetal force F=m(v2)/r, unit is Newtons
Pressure P=F/A, unit is N/cm2
orbital velocity 29,000 kph
escape velocity 41,000 kph, when projectiles break free from Earth's gravity
terminal velocity air friction eventually slows objects ‘til they no longer accelerate
1 calorie the amount of heat needed to raise the temperature of 1 gram of water by 1oC
longitudinal waves particles move in the same direction as wave energy
transverse waves particles move at a right angle to the wave energy motion
amplitude maximum disturbance from a neutral position
wavelength distance between comparable points on successive waves
frequency # of waves passing a point every second, unit is Hz
Created by: courtney_b90
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