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37 Cards in this Set
- Front
- Back
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Momentum
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p=mv
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Impulse
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Ft=m(delta)v
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Conservation of Momentum
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m1v1 + m2v2 = (m1 + m2)vf
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Force of attraction or repulsion between charges
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F= kq1q2/r^2
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Electric field produced by a point charge
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E= kq/r^2
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Electric field on a chrage placed in the field
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E= f/q
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Electric potential acting on a point charge
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V= w/q
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Electric potential difference related to electric field
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V= Ed
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Force on charge moving in magnetic field
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F= qvBsin(theta)
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Force on current-carrying wire
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F= BILsin(theta)
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Induced emf
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Emf= BvL
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Index of refraction (Definition and directions)
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n= c/v
n1sin(theta)1 = n2sin(theta)2 |
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Mirror and Lens Equations
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1/f = 1/do + 1/di
m= hi/ho = abs(di/do) |
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Electric curent
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I= q/t
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Electric potential related to electric current
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V= IR
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Electric power
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P= IV
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Electric energy
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W= Pt
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Series Circuit (current, voltage, resistance)
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1 path= Same current
Veq= Sum of all V Req= R1 + R2 = R3 |
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Parallel Circuit (voltage, current, resistance)
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Same voltage
Ieq= Sum of all I 1/Req= 1/R1 + 1/R2 + 1/R3 |
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Wave speed
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v= lambda x f
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Harmonics for standing waves
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String & Open tube:
L= n/2 x lambda n= 1,2,3... Closed tube L= n/4 x lambda n= 1,3,5... |
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Velocity and acceleration
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v= delta x/t
a= delta v/t |
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Force and acceleration
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F= ma
Fg= mg |
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Define momentum
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the product of mass and velocity
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SI units for momentum
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kgm/s
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A _____ is needed to change the momentum of an object
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Force
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Amplitude
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determined by the source of vibration that causes the wave
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Frequency
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determined by the energy that is associated with the wave
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Speed
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determined by the medium through which the wave travels
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Wavelength
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determined by the speed and frequency of a wave
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Where is the magnetic field the strongest?
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At either the North or South pole
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The direction of the magnetic field is from _____ to _____.
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North to South
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Describe the shape around the magnetic field around a current-carrying wire.
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Circular
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Right hand rule for
Magnetic Force on Charged Particles |
Fingers: direction of the field
Thumb: direction of the velocity Palm: direction of the force and positive charge |
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Right hand rule for Magnetic Forces on Current-Carrying Wires
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Fingers: direction of field
Thumb: direction of current Palm: direction of the force on the wire |
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Right hand rule for a Magnetic Field on Current-Carrying Wire
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Thumb: points in the direction of the current
Fingers: points in the direction of the magnetic field |
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Right hand rule for a Magnetic Field on Current-Carrying Coil
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Fingers: Current
Thumb: N. Pole |
