Review Game Zone
Flash Cards
(current)
Games
Teachers
Search
Subatomic Physics
Test Description: Holt physics chapter 25
Instructions: Answer all questions to get your test result.
1) The nucleus of an atom is made up of
A
electons and protons
B
electrons and neutrons
C
protons, electrons, and neutrons
D
protons and neutrons
2) Light nuclei are stable when
A
they conatain more protons than neutrons
B
the coulomb force is stronger than the nuclear force
C
they contain equal numbers of protons and neutrons
D
they contain more neutons than protons
3) Samples of 2 different isotopesx & y both contain the same number of radioactive atoms. X has a half-life twice that of Y. How do their rates of radiation compare?
A
Rates of X and Y are equal
B
Rate depends on atomic number, not half-life
C
X has a smaller rate than Y
D
X has a greater rate than Y
4) In fission reactions, the binding energy per nucleon must ______ atomic number
A
remain constant; increasing
B
increase; increasing
C
decrease; increasing
D
remain constant; decreasing
5) In order to adequately control a chain reaction, it is necessary to have within the fissionable material a nonfissionable material that _________ neutrons.
A
absorbs
B
reflects
C
contributes
D
emits
6) How is a fission reaction different from a fusion reaction?
A
the fuel must be processed
B
the transportation of fuel is safer
C
the fuel is cheaper
D
there is less radioactive waste
7) Which interaction of nature holds the planets, stars, and galaxies together, even though its effect on elementary particles is negligible?
A
storn
B
electromagnetic
C
gravitational
D
weak
8) Which of the following do physicists believe are fundamental particles?
A
3 quarks and 3 leptons
B
3 quarks and 6 leptons
C
6 quarks and 6 leptons
D
6 quarks and 3 leptons
9) During the radiation era of the big bang theory, most energy was in the form of radiation. What form did matter take?
A
ions
B
electrons
C
ions and electrons
D
hydrogen atoms
10) A radioactive material initially is observed to have an activity of 800 counts/s. If 4 h later it is ovserved to have an activity of 200 counts/s, what is its half-life?
A
2 hour
B
4 hour
C
1 hour
D
8 hour
*select an answer for all questions
Check Results & Get Answers
Play Games with the Questions Above
Teachers: Create FREE classroom games with your questions
Click for more info!
©2007-2024
ReviewGameZone.com
|
About
|
Privacy
|
Contact
|
Terms
|
Site Map
WAIT! Find what you needed?
×
Still Looking for the Answers?
Have Another Question?
Play a Review Game with These Questions?
Want to Make Your Own Test Like This One?