# Shared Flashcard Set

## Details

Final Exam
All formulas
149
Physics
12/04/2007

Term
 Average Speed
Definition
 = Distance/ Time
Term
 Acceleration
Definition
 =ΔV/Δt
Term
 Velocity as function of time
Definition
 v= v0 + at
Term
 Velocity as function of Δx
Definition
 [image]
Term
 Δx as function of time
Definition
 [image]
Term
 Ax=
Definition
 [image]
Term
 Ay=
Definition
 [image]
Term
 Find Θ given Ay Ax
Definition
 [image]
Term
 Draw a vector and its components
Definition
 [image]
Term
 Combing Ax and Ay to yield vector A is accomplished by what means?
Definition
 [image]
Term
 Force =?
Definition
 Force = mass x acceleration
Term
 1 N= ?lb(s)
Definition
 .225lb
Term
 Work= ?
Definition
 Work = FΔx
Term
 Define Work from this picture:[image]
Definition
 [image] Work= (Fcos(θ))Δx
Term
 Work's units are:
Definition
 Joule, (J)
Term
 Force of Gravity=
Definition
 [image]
Term
 Weight=
Definition
 Weight= Mass x Acceleration Due to Gravity
Term
 Find the maximum frictional force for a stationary object with mass m on a level surface.
Definition
 [image]
Term
 The force of kinetic friction, fk =
Definition
 fk=[image]n
Term
 Wnet=
Definition
 Wnet= [image]
Term
 Kinetic Energy =
Definition
 [image]
Term
 Potential Energy =
Definition
 PE=mgh
Term
 Conservation of Energy is stated in this formula:
Definition
 [image]
Term
 Fspring=
Definition
 = -kx
Term
 PEspring=
Definition
 =[image]
Term
 [image]
Definition
 [image]
Term
 Power, P, equals...
Definition
 [image]
Term
 Momentum, p, equals...
Definition
 p=mv
Term
 The units of power are expressed in the ...
Definition
 Watt Watt= J/sec
Term
 Given momentum and time, find the net force which acts upon a system.
Definition
 [image]
Term
 Impulse, I, is given by...
Definition
 I=FΔt
Term
 Conservation of Momentum
Definition
 [image]
Term
 Describe how momentum and kinetic energy are affected by the following collisions: (1) Elastic (2) Perfectly Inelastic (3) Inelastic
Definition
 (1) Momentum and Kinetic Energy are conserved[image]  (2) Momentum is conserved but kinetic energy is not and the two object stick together. [image]      [image] (3) Same as a perfectly inelastic collision except the two objects don't stick together.
Term
 Given this diagram list the formulas needed to determine the final momentum for each object.Then consider how a diagram would look and where the formulas would be placed  [image]
Definition
 [image]
Term
 Instantaneous thrust of a rocket=
Definition
 Ma[image]
Term
 Given this diagram find Θ[image]
Definition
 [image]
Term
 w, angular speed =
Definition
 [image]
Term
Definition
 [image]
Term
 Angular Acceleration, [image], =
Definition
 [image]
Term
 Angular velocity as a function of time
Definition
 [image]
Term
 Angular displacement as a function of time
Definition
 [image]
Term
 Angular velocity as a function of displacement
Definition
 [image]
Term
 Tangential V=
Definition
 [image]
Term
 Tangential acceleration =
Definition
 [image]
Term
 Centripetal acceleration can equal...
Definition
 [image]
Term
 Total acceleration is given by
Definition
 [image]
Term
 The centripetal Force, Fc=
Definition
 [image]
Term
 Gravitational constant=
Definition
 [image]
Term
 PE of an object with significant distance from Earth=
Definition
 [image]
Term
 The formula for escape speed =
Definition
 [image]
Term
 The period, T, of an obriting planet is given by
Definition
 [image][image][image]
Term
 Torque, [image]=
Definition
 [image]
Term
 Given this picture find [image][image]
Definition
 [image][image]
Term
 The center of gravity, for x in this case is given by
Definition
 [image]
Term
 The moment of Inertia, I =
Definition
 [image]
Term
 The sum of all torques=
Definition
 [image]
Term
 The rotating kinetic energy of an object is
Definition
 [image]
Term
 The angular momentum, L, is found by
Definition
 [image]
Term
 If we know the change of L and t, we can find...
Definition
 [image]
Term
 Stress...
Definition
 Is the force per unit area that causes deformation
Term
 Strain
Definition
 Measure of deformation of an object
Term
 Stress is calculated how?
Definition
 Stress= Elastic modulus x strain
Term
 The measurement of elasticity of length is given by ... modulus and ... formula
Definition
 Young's Modulus [image]
Term
 The measurement of elasticty of shape uses what modulus and is given by what formula?
Definition
 Shear Modulus [image]
Term
 Measuring elasticity of volume this modulus is used in the formula.
Definition
 [image]
Term
 A large modulus for a given object means what for its resistance to change?
Definition
 A large modulus means the object resists change very well.
Term
 The density, [image], of an object is given by
Definition
 [image]
Term
 Pressure=
Definition
 [image]
Term
 Given a pressure at a certain depth, find a second pressure knowing only [image]g and h
Definition
 [image]
Term
 State Archimede's Principle
Definition
 Any object completely or partially submerged in a fluid is buoyed up by a force with magnitude equal to the weight of the fluid displaced by the object.
Term
 For a completely submerged object, determine the upward buoyant force as well as the downward force due to gravity. Then determine whether it will sink or float.
Definition
 Buoyant[image] Downward[image] Net Force[image] Result[image][image]
Term
 For a floating object what formula should be used to find a buoyant force? How do the object and fluid relate
Definition
 We know...[image] and [image] so, [image]
Term
 The equation of continuity states that...and is given by...
Definition
 The mass that flows through the end of a pipe with Area1 in time Δt must equal the mass that flows through Area2 in the same interval. [image] However this assumes that the fluid is incompressible.
Term
 Given a two openings on one pipe, the larger opening, O1, will allow for a [image] fluid speed compared to the smaller opening, O2.
Definition
 While the same volume and mass flows through both ends in a time interval, the larger opening will allow for a slower flow rate than the smaller opening.
Term
 Bernoulli's equation states...
Definition
 ...that the sum of the pressure P, the kinetic energy per unit volume, [image], and the potential energy per unit volume, [image], has the same value at all points along a streamline.
Term
 Expressed mathematically Bernouli's equation states...
Definition
 [image] From this equation we can conclude that swiftly moving fluids exert less pressure than slower moving ones.
Term
 The zeroth law of thermodynamics states
Definition
 If objects A and B are separately in thermal equilbrium with a third object C, then A and B are in thermal equilibrium with each other.
Term
 The conversion from Degrees Farenheit to Celsius Degrees is done by Celsius to Farenheit... Celsius to Kelvins...
Definition
 [image] [image]  [image]
Term
 The thermal expansion of an object, ΔL, is given by...
Definition
 [image]
Term
 The change in area to due thermal expansion is given by...
Definition
 [image] where [image] is called the coeffiecient of thermal expansion.
Term
 The change in volume of an object due to thermal expansion is given by...
Definition
 [image] where [image] is equal to 3[image]
Term
 [image]= [image] x ?
Definition
 [image]= 2[image]
Term
 The number of moles, n, is given by...
Definition
 [image]
Term
Definition
 [image]
Term
 The Ideal Gas Law
Definition
 PV=nRT
Term
 The Universal Gas Constant, R, is
Definition
 R=8.31J/mole K
Term
 The Force on the container of an ideal gas
Definition
 [image]
Term
 The Pressure of an Ideal Gas
Definition
 [image]
Term
 The average kinetic energy per molecule
Definition
 [image]
Term
 The Internal Energy for a monatomic gas.
Definition
 [image]
Term
 1 cal = ? J
Definition
 1 cal= 4.186 J
Term
 Specific heat of a substance
Definition
 [image]
Term
 The Energy required to raise a system by ΔT
Definition
 [image]
Term
 The Energy, Q, needed to change the phase of a given pure substance
Definition
 [image] Where L is the latent heat of the substance.
Term
 The heat required to change water to steam is (greater, less than) the heat required to required to change water to ice.
Definition
 Much greater.
Term
 The Rate of Energy Transfer, P in a rod.
Definition
 [image] Where k is the thermal conductivity. Substances with that insulate have low k values.
Term
 The transfer of energy by the movement of a substance is
Definition
 Convection
Term
 The process of transferring energy without a medium is
Definition
Term
 The rate at which an object radiates energy is proportional to the fourth power of its absolute temperature. The exact value is found by
Definition
 [image] P is in watts, [image] is constant and = 5.669 x 10-8 .e varies from 0 to 1.
Term
 The Work done on a gas at constant pressure is
Definition
 W=-PΔV
Term
 The Change in Internal Energy, ΔU=
Definition
 Q+W
Term
 In an isobaric system,____ stays constant
Definition
 Pressure
Term
 Wenv= (Isobaric)
Definition
 Wenv= PΔV
Term
 The Q of a gas at constant pressure
Definition
 [image]
Term
 In an adiabatic process, what stays constant.
Definition
 The energy
Term
 In an adiabatic process, ΔU= ?
Definition
 W
Term
 The adiabatic index of a gas
Definition
 [image]
Term
 In an isovolumteric process, ΔU= ? and Q=?
Definition
 ΔU=Q  Q=nCvΔT
Term
 W, in an isothermal =?
Definition
 W= -Q
Term
 The Work done by a heat engine =
Definition
 Weng=[image] [image]
Term
 The efficieny of an engine
Definition
 [image] [image]
Term
 The coefficient of performance for a fridge or A/C
Definition
 [image]
Term
 The coefficient of performance for a heater is
Definition
 [image]
Term
 ΔS, entropy
Definition
 [image] Where Qr is the energy expelled or absorbed.
Term
 The bodies efficiency is
Definition
 [image]
Term
 The force of a spring
Definition
 Fs=-kx
Term
 The equation for acceleration of an object undergoing simple harmonic motion is
Definition
 [image]
Term
 Elastic PE
Definition
 [image]
Term
 Velocity as function of position
Definition
 [image]
Term
 Period of an object moving with simple harmonic motion.
Definition
 [image]
Term
 Frequency of an object-spring
Definition
 [image][image]
Term
 Angular frequency(Hz)
Definition
 [image]
Term
 [image] Given the equation find Amplitude, frequency, and period. Find velocity and accel max.
Definition
 Amplitude[image]Frequency[image][image] Period[image]Vmax[image][image]
Term
 Draw a picture of a pendulum
Definition
 [image]
Term
 Period of pendulum
Definition
 [image]
Term
 Wave speed, v
Definition
 [image]
Term
 Speed of waves on strings
Definition
 [image]
Term
 Speed of sound in a fluid
Definition
 [image]
Term
 Speed of sound in a medium
Definition
 [image]
Term
 Intensity I of a wave
Definition
 [image]
Term
 To find level of intensity (decibel)
Definition
 [image]
Term
 What is the decibel level of a machine with intensity 1.00 x 10-5?
Definition
 [image]
Term
 For a spherical wave, find the Intensity
Definition
 [image]
Term
 What is the formula for the doppler effect?
Definition
 [image]
Term
 The angle of the shock wave
Definition
 [image]
Term
 The condition of constructive interference occurs when
Definition
 [image]
Term
 Destructive interference occurs when
Definition
 [image]
Term
 The formula for finding the fundamental frequencies
Definition
 [image]
Term
 Compare the fundamental harmonics of a pipe open at two ends, and another open only at one.
Definition
 Both Open:[image] One Closed:[image]
Term
 Beat frequency:
Definition
 [image]
Term
 Energy of a photon
Definition
 [image]
Term
 Index of refraction, n
Definition
 [image]
Term
 Snell's law of refraction
Definition
 [image][image]
Term
 Define total internal reflection and give a formula for the critical angle
Definition
 Occurs only when light attempts to move from a medium of higher index of refraction to a lower index of refraction [image]
Term
 The lateral magnification, M
Definition
 [image]
Term
 Name two properties of a flat mirror
Definition
 1.The image is far behind the mirror as the object is in front 2.The image is unmagnified, virtual and upright. 3. Left right reversal.
Term
 The mirror equation
Definition
 [image]
Term
 Focal length equation
Definition
 [image]
Term
 Mach number
Definition
 vs/v vs is speed of source
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