Monthly Archives: February 2011

HW due 02/24

Impulse: something that changes the momentum of an object.  Force•time=mass•change in momentum Work: when a force moves an object (causes displacement).  Work= force•distance From the equations above, it can be mathematically calculated that: distance (mass•change in momentum)=work•time The relationship between … Continue reading

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HW due 02/15

Energy

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Hw due 02/11

Frequency=(3.0 E8 m/s)/(6.6 E-7 m)= 4.545 E14 Hertz Energy=h*frequency=( 4.545 E14 Hertz)*(6.6 E-34 J*s)= 3 E-19 J Energy= 3 E-19 J

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HW due 02/07

Light is a concentration of photons.  In an atom, there are different electron levels that electrons remain in.  When the atom is in a normal state, certain electrons will encounter photons that have just the right amount of energy to … Continue reading

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HW due 02/03

At every point before “white light” is interpreted as “white” in our brains, it is simply a combination of all colors.  In our eyes, there are rods and cones.  Rods exist to determine the intensity of light whereas cones exist … Continue reading

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