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the amount of energy that is estimated to be contained in the nucleus of a grain of sand would
provide a year's worth of energy for the U.S.
which of the following is true about radioactive decay?
a helium proton was the first particle identified as a product of radioactive decay
the difference between nuclear fusion and nuclear fission is that
fusion combines two nuclei into one, fission splits a nucleus apart
a particular isotope has a half life of 10 minutes. if we state with 2,000 atoms now, in a half hour we will have how many atoms left?
how many protons, neutrons, and electors are contained in uranium-238
92 protons, 146 neutrons, and 92 electrons
a biography of Marie Curie would include the fact that she
won the Nobel Prize in physics and chemistry
safety features in nuclear power plants include
a self contained system for all cooling water coming in contact with the radioactive material
the Yucca mountain project for nuclear waste disposal
is a plan to bury nuclear wastes in underground tunnels
elements heavier than uranium have been produced by scientists who
bombard a heavy element like lead with krypton ions
matter is converted to energy in all except for which of the following?
all of the above convert matter into energy
if you plotted the number of neutrons against the number of protons of all atoms listed in the periodic table of the elements what would you discover?
all of the above
when we say that radioactivity is natures philosophers stone we mean that
radioactivity can change the number of protons in a given nucleus
which of the following statements is a characteristic of radioactivity
much of earths interior heat comes from alpha decay
which group below shows the building blocks of matter in order of their size, smallest to largest
quark, neutron, nucleus, atom, molecule
quarks are one of the basic building blocks of matter. which of the following particles or structures would not contain any quarks at all
how do quarks differ from other elementary particles
only six kinds of quarks make up the hundreds of nuclear particles
which of the following can be said about large stars
large stars have a shorter lifetime than smaller stars
from what part of the electromagnetic spectrum is most of the Sun's energy emitted
visible light waves
which statement about dark matter is accepted by most astronomers
dark matter interacts with ordinary matter through a gravitational force
which of the following elements poses a health threat to people in a well-insulated tightly sealed building
during the nuclear fission reaction in a reactor that generates electricity, uranium-235 releases
the time it takes for half of the atoms of a given amount of radioactive element to spontaneous decay is termed as
a radioactive element that can be injected into a person to detect the presence of diseased cells that will accumulate the element is called
the combination of two atomic nuclei is referred to as fusion, whereas the splitting of a single atom nucleus is
the idea that at high enough temperatures all four fundamental forces unite is the basis of
the theory of everything
which region of the electromagnetic spectrum can easily reach a telescope on earth's surface
a small star that has a very high surface temperature but emits low amounts of energy is a
the element that accumulates in the interior of large stars that does not release energy by any reaction is
an object in the universe that will not allow the escape of anything from its gravitation field is a
the region of the suns interior that conducts energy between the innermost portion and the outermost portion is the
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