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U12 Nuclear Test REVIEW

Total questions: 40

Worksheet time: 2hrs 54mins

Name
Class
Date
1.

Which reaction produces harmful radioactive waste?

a)

Fission

b)

Photosynthesis

c)

chain reaction

d)

Fusion

2.

_____is the joining of atomic nuclei

a)

Fusion

b)

chain reaction

c)

Photosynthesis

d)

Fission

3.

_______is the splitting of atomic nuclei

a)

Fission

b)

nuclear reaction

c)

Fusion

d)

bayler reaction

4.

Which process occurs naturally in the centre of stars like the Sun

a)

Bi-multiple reaction

b)

Fission

c)

chemical

d)

fusion

5.

How is the alpha particle written in a nuclear equation?

a)

42He

b)

24He

c)

0-1e

d)

00γ

6.
Which type of nuclear radiation is being emitted here?
a)
Alpha
b)
beta
c)
gamma 
d)
none
7.

Balance this equation:

85209At --> ___ + 24He

a)

83205Bi

b)

86209Rn

c)

81207Tl

d)

85208At

8.

Gamma rays have

a)

no mass

b)

a huge mass

c)

a small mass

d)

an average mass

9.

Balance this equation.

614C --> ___ + -10e

a)

410Be

b)

714N

c)

210He

d)

613C

10.
Has the symbol
a)
Alpha
b)
Beta 
c)
Gamma
11.
Has the highest penetrating power.  Can penetrate our body.  Even several cm thick of lead or several meters thick of concrete cannot stop all of it.
a)
Alpha
b)
Beta
c)
Gamma
12.

Has the lowest penetrating power.  Can only penetrate 0.05 mm into the body and can be stopped by the skin.

a)
Alpha
b)
Beta
c)
Gamma
d)

Electron capture

13.
Radioactive materials have unstable...
a)
electrons
b)
protons
c)
nuclei
d)
neutrons
14.
In a correctly written symbol what would be located in the "A" position?
a)
number of neutrons
b)
atomic number
c)
number of electrons 
d)
mass number
15.
What is the missing isotope that will balance the following nuclear equation?
94Be  +  11H →  _____  +  42He
a)
105B
b)
105Ne
c)
63Li
d)
63C
16.

What particle completes this reaction?

a)

42He

b)

0-1 e

c)

00Y

d)

178O

17.

Which type of radioactivity is in the form of waves, rather than particles?

a)

Alpha

b)

Beta

c)

Gamma

d)

Nuclear

18.

What number belongs in the blank?

a)

9

b)

2

c)

17

d)

0

19.

Which type of nuclear reaction splits a large unstable nucleus into smaller ones?

a)

Fission

b)

Fusion

20.

Which type of nuclear reaction combines smaller particles into a larger one?

a)

Fission

b)

Fusion

21.

What term is used to describe an atom that changes into another element because of radioactive decay?

a)

gamma ray

b)

transmutation

c)

alpha particle

d)

electron

22.

How do nuclear power-plants work?

a)

Fusion

b)

Half-life

c)

Fission

d)

Fusion or fission

23.

What nuclear process is shown in the picture?

a)

alpha decay

b)

gamma emission

c)

fusion

d)

fission

24.

Which nuclear process if shown in the picture?

a)

alpha decay

b)

beta decay

c)

fusion

d)

fission

25.
What is a benefit of nuclear fission?
a)
The ability to absorb energy
b)
The ability to release tremendous amounts of energy
c)
The ability to produce more energy than nuclear fusion
d)
There are no beneficial aspects of nuclear fission
26.

One disadvantage of nuclear energy produced through fission is ___.

a)

it is a fossil fuel

b)

it leaves behind radioactive waste

c)

it emits large amounts of pollution into the atmosphere

d)

there are no disadvantages

27.

Which of the following is NOT an example of nuclear fission?

a)

nuclear power plants

b)

the sun

c)

atomic bombs

28.

Arrange in order of increasing ability to penetrate matter.

a)

Beta, gamma, alpha

b)

Alpha, gamma, beta

c)

Gamma, beta, alpha

d)

Alpha, beta, gamma

29.
During fission, some of the nuclear mass is converted into
a)
energy
b)
heavier nuclei
c)
critical mass
d)
protons
30.
Nuclear Power's source comes from _________________.
a)
Uranium or Plutonium
b)
Coal
c)
Natural Gas
d)
Oil and/or Coal
31.
When moving neutrons hit the nuclei of certain other atoms thereby causing them to disintegrate, and this happens repeatedly, it is said to be a _______________________.
a)
nuclear chain reaction
b)
alpha radiation
c)
nuclear half-life
d)
control rod
32.

The components of an atom are? (More than one answer)

a)

Protons

b)

Neutrons

c)

Electrons

d)

Bosons

33.

nuclear power plants use _____ from nuclear fission chain reactions in fuel cells filled with water and uranium to spin magnets and generate electricity.

a)

radioactivity

b)

fire

c)

steam

d)

magic

34.

What are the purpose of control rods in a nuclear reactor?

a)

to speed up the nuclear fission reaction by releasing more neutrons

b)

to slow down the nuclear fission reaction by absorbing neutrons

35.

What element provided the fuel used for the atomic bomb?

a)

Pa

b)

Pt

c)

Pu

d)

P

36.

True or False.

Radioactive elements release energy spontaneously in order to become stable. This changes the identity of the atom.

a)

True

b)

False

37.

True or False.

We use fusion reactions to produce energy in nuclear power plants.

a)

True

b)

False

38.

The atomic bombs dropped during WWII used nuclear ______ reaction for their power.

a)

fission

b)

fusion

39.

Nuclear reactions can involve...

a)

neutrons, protons, and electrons

b)

only neutrons

c)

only protons

d)

only electrons

40.

To keep the nuclear reactor at Chernobyl from reaching "nuclear meltdown", what would have helped cool the reactor enough to avoid the explosion?

a)

protective clothing

b)

heat up the water

c)

build a wall around it

d)

use more control rods to control the chain reaction

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