Chapter 16 Test - Craig Fisher | Laabri | Nneɛma a ɛma wotumi yɛ ade

MULTIPLE CHOICE

-Choose the correct answer by clicking on your answer choice. Only one answer is correct. (2 pts. each)

2

Which is the most penetrating form of nuclear radiation?

A. gamma rays

B. X rays

C. alpha particles

D. beta particles

2

Which of the following is a disadvantage of nuclear fusion?

A. Nuclear fusion is accident prone.

B. Nuclear fusion requires more energy than it produces.

C. Nuclear fusion produces too much nuclear waste.

D. Nuclear fusion has a limited amount of fuel.

2

What is the fuel used in nuclear power plants?

A. U-235

B. Pu-244

C. H-1

D. He-4

2

In a fission reaction, why is the total mass of the products less than the mass of the reactants?

A. Some matter is created.

B. Some matter disappears.

C. Some matter is converted into energy.

D. Some matter is destroyed.

2

Becquerel was shocked by his results when the photographic plate from the drawer was developed because

A. he did not know you could get shocks from electricity.

B. he did not expect the mineral to glow without a light.

C. he did not know the energy came from uranium.

D. he forgot he had put his material in the drawer.

2

What name did Marie Curie give to the process where some nuclei give off nuclear radiation?

A. X rays

B. electron radiation

C. fluorescent radiation

D. radioactivity

2

What happens to an unstable nucleus during radioactive decay?

A. The nucleus gives off particles and energy.

B. The nucleus absorbes particles and energy.

C. The nucleus gives off particles and light.

D. The nucleus absorbs particles and X rays.

2

Which of the following can be stopped by paper or clothing?

A. alpha particles

B. gamma rays

C. X rays

D. beta particles

2

C-14 can be used to find the age of objects up to how old?

A. 500,000 years

B. 5,300 years

C. 1.3 million years

D. 50,000 years

2

What can be used to detect defects in metal?

A. gamma rays

B. radioactive rays

C. radioactive isotopes

D. alpha particles

2

In a nuclear reaction, why do the products have less mass than the reactants?

A. Some mass is converted to energy.

B. Some mass disappears.

C. Some mass is destroyed.

D. Some energy is converted to mass.

2

What is the biggest problem with nuclear fusion as a source of electrical energy?

A. Nuclear fusion needs more energy than it generates.

B. Nuclear fusion needs less energy than it generates.

C. Nuclear fusion is more dangerous than nuclear fission.

D. Nuclear fusion is more dangerous than burning fossil fuels.

2

An alpha particle is composed of two protons and

A. one neutron.

B. two neutrons.

C. two electrons.

D. one positron.

2

What did Marie Cirie call radioactive decay?

A. radioactivity

B. beta particle

C. half-life

D. electron

2

Which of the following causes the most damage to the inside of a living organism?

A. gamma rays

B. alpha particles

C. beta particles

D. delta particles

2

When something dies, what happens to its level of C-14?

A. C-14 stays the same.

B. C-14 increases.

C. C-14 decreases.

D. C-14 increases then decreases.

2

What is the time it takes one-half of the nuclei of a radioactive isotope to decay called?

A. half-life

B. C-14

C. isotope life

D. radioactivity

2

How can nuclear fission be made to happen?

A. atoms are hit with neutrons

B. atoms are hit with X rays

C. atoms are hit with light

D. atoms are hit with gravitons

2

What is an example of a controlled nuclear chain reaction?

A. a nuclear power plant

B. a nuclear tracer

C. an atomic bomb

D. an atomic bond

2

What is a disadvantage of nuclear power plants compared to fossil fuel plants?

A. they cost more to build

B. they cost less to run

C. the supply of uranium is unlimited

D. they cost less to build

2

A C-11 nucleus breaks into a positron and a neutron. What kind of decay is this?

A. alpha decay

B. beta decay

C. gamma decay

D. delta decay

2

What does the number in Rn-222 mean?

A. that it is an isotope

B. the mass number of the isotope

C. the number of protons in the nucleus

D. the total charge of the isotope

2

Which of the following industries commonly uses radioactive materials?

A. banking and finance

B. papermaking

C. farming

D. health care

2

What is the mass number of a beta particle?

A. 4

B. 2

C. 1

D. 0

2

The half-life of C-14 is 5,730 years. About how old is a sample that has one fourth of its C-14 unchanged?

A. 5,700 years

B. 10,000 years

C. 11,400 years

D. 15,100 years

COMPLETION

-Complete the following questions by selecting the correct answer from the word bank. Misspelled words will be marked as incorrect. Some answers may be used more than once, others may not be used at all. (2 pts. each)