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______ _______ is the measure of the distance that light will travel within 1 year of time.
Light years
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_______ _______ are waves of radiation that are characterized by electric and magnetic fields.
Electromagnetic waves
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The spectrum is divided into bands of wavelengths, ordered from short to long. They are:
Gamma ray, x-ray, UV, visible, infrared, microwave, and radio wave
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The visible part of the spectrum can be further subdivided by color bands from long to short. They are:
red, orange, yellow, green, blue, violet, indigo
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______ is a common metric unit of energy.
Joule
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4.2 joules = 1 ________.
calorie
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_______ _______ is the energy of motion.
Kinetic energy
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The equation for Kinetic energy is:
KE= 1/2mv² (m= mass of object and V= velocity of the object)
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_______ ______ is the amount of energy stored in an object.
potential energy
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The equation for potential energy is:
PE=mgh (M=mass, g=standard of gravity constant, h= height)
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The law that states that energy is not lost but rather transfered back and forth between KE and PE is:
Law of Conservation of Energy
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______ is anything that takes up space and has mass.
matter
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______ is the quantity of matter an object has.
mass
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_______ are substances that cannot be broken up into simpler types of matter.
Elements
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_____ is the smallest part of an element that still retains all the original properties of an element
Atom
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_______ are positively charged subatomic particles found in the nucleus of an atom. Their number distinguishes one atom from another.
Protons
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______ ______ of the element is the number of protons in the nucleus of an atom of an element.
Atomic Number
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