Physics Flashcards
(17 cards)
What is the main difference between longitudinal and transverse waves?
the direction of the disturbance relative to the direction of wave propagation.
What is the definition of wavelength?
the distance between successive crests of a wave
What is the definition of amplitude?
The distance of the crest from the middle.
What is the definition of frequency?
the number of complete cycles of a wave that occur within a specific amount of time
What is the unit of frequency?
hertz(Hz)
What is the unit of current?
Amps
What is the unit of resistance?
Ohms
What is the unit of voltage?
Volts
Define conduction.
the transfer of heat through physical contact
Explain how sound wave travel through air
a series of vibrations that move from one air particle to the next
Define convection
a type of heat transfer where heat is moved by the movement of fluids, where the hotter fluids rise and the colder fluids sink.
What happens to the current in a series circuit if one bulb fails
all bulbs fail
Define radiation
energy traveling from a source in the form of waves or particles.
Which electromagnetic wave has the longest and shortest wavelength?
Longest: Radio waves
Shortest: Gamma rays
hat happens to the current in a parallel circuit if one bulb fails
its the only bulb that fails
Which electromagnetic wave has the highest and lowest energy?
Highest: Gamma rays
Lowest: Radio waves
Explain why sound cannot travel in a vacuum
There are no air particles in a vacuum.
