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Ch 10 Nuclear Changes
Test Description: .
Instructions: Answer all questions to get your test result.
1) Alpha particles
A
are positively charged
B
can penetrate any thickness of matter
C
all of the answers are correct
D
consist of two protons and four neutrons
2) The type of nuclear radiation that can penetrate farthest through matter is called
A
gamma rays
B
neutron emission
C
radons
D
none of the answers are correct
3) as beta particle ionize atoms, they
A
neither lose nor gain energy
B
none of the answers are correct
C
gain energy
D
lose energy
4) In E=mc2, c stands for
A
carbon
B
total energy
C
the size of the particle
D
the speed of light
5) radon gas is produced
A
by nuclear power plants
B
by smoking cigarettes
C
as a result of rotting wood in the basesment
D
through radio active decay or uranium 238 in the Earths crust
6) small radioactive sources that are present in smoke detectors release
A
alpha particles
B
neutrons
C
gamma rays
D
beta particles
7) which of the following occurs in the nucleus during alpha decay
A
two protons and two neutrons are gained
B
two neutron and two electrons are lost
C
two protons and two neutrons are lost
D
two neutron and two electrons are gained
8) what changes in the nucleus during nuclear decay by gamma rays
A
atomic mass
B
all of the above
C
atomic number
D
energy content
9) archaeologists use the half life of ____ to date organic materials
A
atomic mass
B
carbon 12
C
carbon 14
D
uranium 238
10) what holds protons and nuetrons together in a nucleus
A
strong nuclear force
B
atomic mass
C
like charges repelling
D
like charges attracting
*select an answer for all questions
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