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Intro to Nuclear Physics

Total questions: 47

Worksheet time: 47mins

Name
Class
Date
1.

Which of these processes describes a nuclear fusion reaction?

a)

A nucleus absorbs energy to produce lighter nuclei.

b)

A nucleus splits to produce energy and lighter nuclei

c)

Two nuclei bind together to produce energy and heavier nuclei.

d)

Two nuclei bind together to produce energy and a lighter nuclei.

2.
Isotopes of the same element have different ____________. 
a)
 numbers of protons  
b)
numbers of electrons
c)
 symbols 
d)
numbers of neutrons
3.
How many protons does gold atom have?
a)
197
b)
79
c)
118
d)
276
4.

Neutrons ......

a)

has positive electric charge with equal magnitude to that of an electron.

b)

has no net electric charge.

c)

has negative electric charge.

d)

orbiting the nucleus.

5.

The atomic number of a given element is

equivalent to which of the following?

a)

Proton number in the nucleus

b)

Neutron number in the nucleus

c)

Sum of the protons and neutrons in the

nucleus

d)

Sum of the protons, neutrons and electrons

6.

What does the mass equivalence equation tell us? E=mc2

a)

A large amount of energy can be converted from a small amount of mass

b)

Gravity bends both time and space

c)

Gravitational waves are emitted from black holes

d)

Atomic nuclei emit gamma rays, beta particles, and alpha particles

7.
Which is not true of radioactive decay?
a)
It is a result of instability in atoms
b)
It happens only in nuclear power plants
c)
Radioactivity can be useful
d)
It is hazardous to human health
8.
Takes two small nuclei and combines them into a larger nucleus
a)
fission
b)
fusion
9.
The splitting of a nucleus into smaller nuclei is
a)
fusion
b)
fission
c)
half-life
d)
gamma radiation
10.
How do nuclear power-plants work?
a)
Fusion
b)
Half-life
c)
Fission
d)
Fusion or fission
11.
Where does fusion occur naturally?
a)
Underwater
b)
All around us
c)
In the radioactive waste
d)
On the sun
12.
Very high temperature and pressure is required for:
a)
Fission
b)
 Fusion
c)
Radioactive Decay
13.
One disadvantage of nuclear energy 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
14.
One advantage of nuclear energy over coal energy is ______.
a)
it is very cheap to build and maintain a nuclear power plant
b)
there is very little dangerous waste with nuclear energy
c)
the nuclear plant emits more greenhouse gases
d)
the nuclear plant does not emit as many greenhouse gases
15.

The atomic number identifies the number of __________.

a)

electrons

b)

atoms

c)

protons

d)

neutrons

16.

Subatomic particles that have a negative charge

a)

electrons

b)

protons

c)

quarks

d)

neutrons

17.
Subatomic particles with a positive charge
a)
neutrons
b)
atomic mass
c)
protons
d)
isotopes
18.

These are found in the nucleus and have a neutral charge.

a)

proton

b)

electron

c)

neutron

19.
Value representing the number of protons in an element
a)
Atomic Mass
b)
Mass Number
c)
Valence Electrons
d)
Atomic Number
20.
Which particles are located in the nucleus? 
a)
Protons & Electrons 
b)
Electrons & Neutrons 
c)
Protons & Neutrons 
21.
Which sub-atomic particles were determined to have charges? 
a)
Protons & Electrons 
b)
Electrons & Neutrons
c)
Protons & Neutrons
22.

An atom has 25 protons and 30 neutrons. How many electrons are needed to make the atom neutral?

a)

0

b)

25

c)

30

d)

35

23.
What is the overall charge of the nucleus?
a)
Positive
b)
Negative
c)
No Charge
d)
Both positive and negative
24.
Measure mainly of the nuclear particles: protons + neutrons
a)
Subatomic Particles
b)
Atomic Number
c)
Atomic Mass
d)
Gluons
25.
The smallest particle of an element that shows all the properties of that element.
a)
Subatomic Particles
b)
Atom
c)
Quarks
d)
Gluons
26.
Arrangement of elements organized by atomic number
a)
Electron Cloud 
b)
Periodic Table 
c)
Electron Configuration
d)
None of these
27.
Calculation used to find the number of neutrons in an atom
a)
Atomic Mass - Atomic Number
b)
Atomic Number - Atomic Mass
c)
Atomic Mass - Electrons
d)
none of these
28.

Which part of the diagram represents the proton?

a)

a

b)

b

c)

c

d)

d

29.
What is the atomic number of Boron?
a)
5
b)
11
c)
6
30.
What is the atomic mass of Boron?
a)
5
b)
11
c)
6
31.
How many protons does Boron have?
a)
5
b)
11
c)
6
32.
How many electrons does Sodium have?
a)
11
b)
23
c)
12
33.

Which TWO particles can be changed within an element without changing what the element is?

a)

Neutrons

b)

Electrons

c)

Protons

34.
How many neutrons does Fluorine have?
a)
9
b)
19
c)
10
35.

Look at this picture of Argon off the periodic table. Which of the following is true for this element?

a)

18 protons

b)

40 protons

c)

22 protons

d)

21.9 protons

36.

Which part of an atom is used to identify it?

a)

number of protons

b)

number of neutrons

c)

number of electrons

37.
The mass of this particle is so small that it is not counted.
a)
proton
b)
electron
c)
neutron
d)
quark
38.
The term "neutral" means
a)
having only a little bit of charge
b)
having a positive charge
c)
having a negative charge
d)
having no charge at all
39.
In nuclear fusion, smaller atoms are forced together to create larger atoms. Does this process release, absorb or maintain energy?
a)
Absorb energy
b)
Maintain energy
c)
Release energy
40.
Do all stars make energy through fusion?
a)
Yes
b)
No
c)
Just our sun
d)
Only large stars
41.

When hydrogen is "fused" together on the Sun, what new element is created?

a)

Helium

b)

Carbon Dioxide

c)

Oxygen

d)

Light

42.
An explosion that occurs at the end of a massive star’s life is a              
a)
black hole
b)
supernova
c)
white dwarf
d)
nebula
43.
Nuclear power uses ____ for fuel.
a)
steel
b)
coal
c)
uranium
d)
hydrogen
44.
_________ happens naturally due to an unstable nucleus.
a)
fission
b)
fusion
c)
radioactive decay
d)
K-capture
45.
An example of an uncontrolled fission reaction is _______________
a)
Nuclear power plants
b)
Radio active decay
c)
Atomic Bomb
d)
On the surface of the sun
46.
What do  control rods do in a nuclear reactor?
a)
Regulate the rate of reaction  by absorbing and slowing neutrons
b)
Produce electricity
c)
Produce neutrons to increase the rate of reaction
d)
Reduce heat produced by the uranium rods
47.
Nuclear energy uses _____ to turn turbines to power a generator.
a)
wind
b)
water
c)
steam
d)
solar

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