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59 Cards in this Set
- Front
- Back
resistance sucks up
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voltage
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in a series circuit, describe the voltage
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the voltage is the same all around
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in a parallel circuit, describe the current
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the current is the same all around
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what happens to a current at a junction
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it splits..duh
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the brightness of a bulb is dependent on the
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current; larger current = brighter bulb
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when light transmits through the first polarizer it
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the transmittance splits in HALF
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blue light has the most energy because it has the
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shortest wavelength
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Describe the photons emitted per second according to wavelength and the energy emitted per second.
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the light with the longer wavelength will emit more photons just lower energy photons, yet all light emits the same energy per second
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a photon is emitted when there is a transition between
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high energy to low energy
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resistance for a parallel series
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1/R1 + 1/R2 + 1/R3
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Resistance in a series circuit
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R1 + R2 + R3
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current stays the same in a series but not in a parallel because
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there are junctions
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in the process of fission (splitting) describe the products and reactants
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the reactants will have more mass than the products (additional energy)
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in terms of the observing reference point describe the time and length
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time dilates (things appear to move slower)
length contracts |
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less mass in an element means more
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stability
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any element over the mass number of ____ will not have much affect on stability
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60
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describe binding energy in elements according to mass
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binding energy decreases around mass number of 60
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in terms of fusion, describe the products and reactants
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the product will have more mass than the reactants (additional energy)
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when an image is to the right of the lens =
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real
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when image is the left of lens =
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virtual
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when the height is a negative value this means the image is
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inverted
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when the height is positive value this means the images is
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upright
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when the distance of an object is a negative value this means the image is
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left of the lens
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when the distance of an object is a positive value this means the images is
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right of the lens
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virtual objects only occur when there are
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two lenses
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de Broglie's wavelength
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wavelength is proportional to h/ momentum
or frequency is proportional to the total energy (KE + RE) |
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frequency =
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c / wavelength
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as charge increases, potential
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increases
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value of a dielectric
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it increases capacitance and voltage
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when the distance between plates in a capacitor increase, this means capacitances
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decrease
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Describe E field in a parallel-plate capacitor
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uniform E Field
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Describe electric field inside a conductor
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zero
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Describe the relationship between E field and conducting surface
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E field is always PERPENDICULAR to the conducting surface
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Describe the potential when the charge is moved along an electric field line, in the same direction as the field
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the potential is non-zero when the charge moves along the same direction as a field line
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electric potential
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the electric potential energy per unit charge
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How to increase capacitance
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decrease plate spacing and increase plate area
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If an electron were to move from a region of low electric potential to a region of high electric potential, its electric potential energy would
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decrease
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Describe an E field where the potential is the same throughout.
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E = 0
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Describe E field between capacitors
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E field is zero between plates of a capacitor
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Describe relationship between charge and capacitance
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charge does not influence capacitance
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How to determine E field of capacitor
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Gauss Law
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emf refers to
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voltage (difference of electric potential energy between two points)
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relationship between voltage and current
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proportional
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what is actually flowing through wires
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electrons
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relationship between temperature and resistance
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temperature decreases so does resistance
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length contraction only occurs
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in the direction of motion
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units of energy and how to convert to eV
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J but to convert to eV you must divide by e
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limitations of a magnetic field exerting forces
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magnetic field cannot only exert force on a particle that is moving and that is charged
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magnetic force is in what direction of a particle
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perpendicular
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describe maximum magnetic force
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the maximum magnetic force a charge can feel is one that is perpendicular to it
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describe the magnetic field in a solenoid
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the magnetic field is parallel to the axis of a solenoid
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relationship between E field and B field
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perpendicular to each other
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shortest wavelength to longest
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radio
microwave infrared visible UV x-ray gamma |
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describe light through a virtual image
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virtual image means no light passes through it
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describe an image in a CONVEX mirror
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the image is always virtual, and it is always upright
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magnified mirrors are what shape?
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concave (think of your own mirror)
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if the image distance is negative this means the image is
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virtual
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no matter the type of mirror or lens, a real image is always
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inverted
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destructive interference
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destructive interference occurs when two waves arrive exactly out of phase
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