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26 Cards in this Set
- Front
- Back
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what type of wave is light
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electromagnetic
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tiny particles that make up light
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photons
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what are the primary colors of light
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red, blue, green
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which color of light has the longest wavelength
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red
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how fast does light travel
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300,000,000 meters per second
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method of heat transfer where warm matter rises and cooler matter sinks
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convection
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method of heat transfer through space which involves waves
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radiation
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method of heat transfer that involves direct contact
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conduction
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the measure of the average kinetic energy of the particles of a substance
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temperature
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explain why the temperature of ice does not change as it melts, even though heat is being added
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the heat makes the particles move further apart but does not change the speed (kinetic energy) of the particles
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is sound a transverse, longitudinal, or electromagnetic wave
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longitudinal
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how does the speed of sound in a gas compare to the speed of sound in a solid
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sound travels faster in solids
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what is the speed of sound in space
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sound cannot travel through space
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what is the range of frequencies that the human ear can detect
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20 to 20,000 hertz
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what does the frequency of a sound determine
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its pitch
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what is an electric current
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the movement of electrons
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if an object gains electrons, what type of charge will the object have
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negative
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what is the rule of electric charges
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opposites attract , likes repel
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the opposition to the flow of electricity through a substance
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reistance
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type of circuit that has one continuous path
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series circuit
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naturally occurring magnetic rock
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lodestone
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what happens when the N pole of one magnetic is place near the S pole of another magnet
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they will attract
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theory that uses alignment of electrons to explain magnetism
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domain theory
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name two ways to destroy magnetism
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heat, impact
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name two ways to increase the strength of an electromagnet
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use an iron core, add more coils of wire, use more current
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what is the SI unit for electric current
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amp (ampere)
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