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12 Cards in this Set
- Front
- Back
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Light and sound
Found in what type of energy |
Radiant
Mechanical |
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Light and sound
What type of wave |
Transverse
Longitudinal |
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Light and sound
Requires a medium |
no
yes |
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Light and sound
Frequencies |
390nm-700nm
20-20000hz |
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Light and sound
Name the different categories |
Radio, microwave, infrared, visible, ultraviolet, xray, gamma
longitudinal transverse suraface |
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Three types of heat transfer with example
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Conduction: the transfer of hear for matter to matter;touching a burning stove and burning yourself
Convection: the transfer of hear form matter to air; old fashioned radiator Radiation: transfer of hear form one point to another; boiling water |
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Does electricity flow in an open or closed circuit
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closed
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What is static electricity
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an electrical discharge, often created by friction, consisting stationary ions that don't move in a current
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Define law of charges
with an example from lab |
all magnetic objects have a tendency to repel or attract each other
When we rubbed the rods in fur and put it to the tin foil and it repelled it |
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How is electricity like a river
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The river presses against the banks and anything in its path; this is water pressure.
Voltage is the pressure of the electric field and is measured in Volts. The water flow in the river is called the water current. The flow of electrical energy is called the electric current and is measured in Amperes, which is Coulombs per Second. Resistance in a river is the opposition to the flow of current. The banks and the bottom of the river provide resistance, and anything in the water is an obstruction, like bridge columns. Electrical resistance is opposition to the flow of electrical energy. |
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Define intesity as it applies to a wave
and how does it relate to the amplitude |
it relates to the amplitude
The higher the amplitude the higher the intesity, lower amp lower intesity |
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Define pitch
What does it have to do with frequency |
a letter associated with sounds of particular frequencies
pitches have a frequency, but not all frequencies necessarily associated with a single pitch |
