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Physics Vocabulary- Two

Across
Reduction of the transmission of sound, heat, or electricity
A quantum of electromagnetic radiation
The rate of doing work
Tendency of something to stay in motion or at rest
Radioactive isotope of an element
_____ energy- mechanical energy that a body has by its current position
Change in the apparent frequency of a wave as observer and source move toward or away from each other
Substance that conducts electricity
Electricity generated by light
The opposite force when a force is applied
Unit of frequency with a periodic interval of one second
Form of energy transferred by a difference in temperature
Decrease in density of an object
The high or low quality of a sound
Calculated as the difference between the final position and the initial position
Unit of electrical charge equal to 1 ampere per second
Impelled forward
When radiation is restricted in direction of vibration
____ energy- energy released by a nuclear reaction
Down
Pivot about which a lever turns
Relative size
Component of aerodynamics that opposes gravity
Unit of electrical energy
The interval to complete one cycle of a repeating phenomenon
The condition of being dissociated into ions
Cannot be renewed
Force imparting acceleration
Intervening substance
Engine that converts mechanical energy into electricity
Having a constant ratio
Exhibiting or caused by emissions in nuclear decay
Production of electricity by waterpower
Resistance when a body is moved in contact with another
Unit of electrical resistance equal to the resistance between two points
Quality of being luminous
Electrical phenomenon generating an electromotive force
Act of changing location from one place to another
Power output of a generator
___ life- time required for a radioactive isotope to lose half of its atoms