Sem 2 Final Exam Flashcards
(40 cards)
What is unique for any given element?
the number of protons
The number of protons in one atom of an element is that element’s…
atomic number
When red light is compared with violet light both…
travel at the same speed
If you know the wavelength of any form of electromagnetic radiation, you can determine its frequency because…
all wavelengths travel at the same speed
Which type of electromagnetic wave travels through space the fastest?
they all travel at the same speed
The energy of motion is called..
kinetic energy
the equation E=mc^2 relates energy and…
mass
The waves with the longest wavelengths in the electromagnetic spectrum are…
radio waves
What occurs as a light wave bends when it passes from one medium to another?
refraction
As the number of protons in the nucleus increases, the repulsive force in the nucleus…
becomes stronger
The beta emission process results in the daughter nucleus differing in what manner from the parent?
the atomic number changes by 1
Which interaction of nature binds neutrons and protons into nuclei?
strong
Which interaction of nature binds atoms and molecules by attracting unlike charges and repulsing like charges?
electromagneticA
A gamma ray is also known as…
a high-energy photon
During beta decay…
a neutron is transformed into a proton
Resistance is measured in…
ohms
as more lamps are put into a series circuit, the overall current in the circuit…
decreases
As more lamps are put into a parallel circuit, the overall current in the circuit…
increases
When one light bulb in a parallel circuit containing 2 light bulbs burns out, the other light bulb…
burns roughly the same as before
in solid conductors, electric current is the flow of…
electrons only
an amp is a…
unit of current
current from a battery is always…
DC
Heat travels from the sun to the earth by…
radiation
infrared radiation is a form of…
radiant enegry
