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WorksheetsCh16 HW Set 1
Total questions: 13
Worksheet time: 7mins
Is radioactivity on the Earth something relatively new?
No. It's been a part of the environment as long as the sun, rain and soil have been.
Yes. Humans invented radioactivity.
Why is cosmic radiation more intense in high-altitude cities?
High-altitude cities are closer to the sun.
In high-altitude cities, the air is thinner and provides less of a protective blanket.
In high-altitude cities, the air is thicker.
Cosmic radiation is not more intense in high-altitude cities.
Which type of radiation—alpha, beta, or gamma—results in the greatest change in mass number?
alpha radiation
beta radiation
gamma radiation
two of these radiation types result in the same change in mass number
Which type of radiation—alpha, beta, or gamma—results in the greatest change in atomic number?
alpha radiation
beta radiation
gamma radiation
two of these radiation types result in the same change in atomic number
Which of the three rays—alpha, beta, or gamma—has the greatest penetrating power?
alpha radiation
beta radiation
gamma radiation
two of these radiation types have the same penetrating power
What do flying in a commercial airliner and a visit to the doctor’s office have in common?
monetary payment is required
you are accept risks of radiation exposure in return for certain benefits.
safety procedures to reduce exposure to radiation have been designed and implemented
all of the above
What is a common source of radiation found within the basements of homes?
Radium-199
Uranium-235
Plutonium-239
Radon-222
Which releases more radioactivity into the atmosphere, coal-fired power plants or nuclear power plants?
coal-fired power plants
nuclear power plants
they are the same
Why is the killing of cells by radioactivity better than damage of cells?
The body replaces cells that are killed by radiation.
The body cannot always repair cells damaged by radiation.
Damaged cells may be passed on to offspring.
All of these.
Rank these three types of radiation by their ability to penetrate this page of your book, from highest to lowest:
(a) Alpha particle
(b) Beta particle
(c) Gamma ray
[A, B, C]
[B, A,C]
[C, B, A]
[C, A, B]
Consider the following atoms:
A. C-12
B. C-14
C. N-14.
From greatest to least, rank them by the number of protons in the nucleus.
[A, B, C]
[C, B, A ]
[C, B = A]
[B = C, A]
Consider the following atoms:
A. C-12
B. C-14
C. N-14.
From greatest to least, rank them by the number of neutrons in the nucleus.
[A, B, C]
[B, C, A ]
[C, B = A]
[B = C, A]
Consider the following atoms:
A. C-12
B. C-14
C. N-14.
From greatest to least, rank them by the number of nucleons in the nucleus.
[A, B, C]
[C, B, A ]
[C, B = A]
[B = C, A]
