Font size
S
M
L
XL
Worksheets3.06.23 | Physics Review
Total questions: 22
Worksheet time: 11mins
Name
Class
Date
1.
____________________ is when small nuclei become more stable by joining together to form larger nuclei
a)
Fusion
b)
Fission
c)
Half Life
d)
Decay
2.
In all nuclear reactions, the total of the atomic numbers on the left side of the equation must equal the total of the atomic numbers on the right side of the equation.
a)
True
b)
False
3.
Each particular ____________________ has its own half-life.
a)
Isotope
b)
Proton
c)
Neutron
d)
Nucleon
4.
The disintegration of unstable nuclei occurs all at once.
a)
True
b)
False
5.
The breakup of a larger nucleus into two or more smaller nuclei is ____________________.
a)
Fission
b)
Fusion
c)
Half Life
d)
Conservation
6.
The main difference between a nuclear power plant and a fossil fuel plant is the size of the generator.
a)
True
b)
False
7.
Nuclear power plants produce electricity through _____.
a)
induced fission
b)
beta decay
c)
Alpha decay
d)
induced fusion
8.
Which one of these statements is true about the moderator and the control rods in a nuclear power station?
a)
The control rods slow the neutrons down, while the moderator absorbs the neutrons
b)
The moderator slows the neutrons down, while the control rods absorb the neutrons
c)
The moderator and control rods absorb the neutrons
d)
None of the above
9.
A moderator in a nuclear reactor decelerates the neutrons.
a)
True
b)
False
10.
U-235 nuclei split when struck by _______.
a)
a neutron
b)
an electron
c)
a proton
11.
Why are alpha particles easier to stop by materials than beta particles?
a)
They are larger
b)
They are weaker
c)
They are negatively charged
d)
They are slower
12.
Fill in the blank(s):
Each different isotope has the same number of ____________________ and a different number of ____________________.
a)
Protons, Neutrons
b)
Neutrons, Protons
c)
Protons, Electrons
d)
Electrons, Protons
13.
Because of electromagnetic force, particles with opposite charges _____ each other and particles with the same charge repel each other.
a)
Attract
b)
Repel
14.
The Weak Nuclear Force in an atom is transferred by the exchange of force-carrying fundamental particles called ______.
a)
Bosons
b)
Electromagnetism
c)
Photons
d)
Quarks
15.
Select all possible answers:
What particles are held in the nucleus of an atom?
a)
Neutrons
b)
Electrons
c)
Photons
d)
Protons
16.
Fill in the blank(s):
When protons change to neutrons, this changes atoms of one ____________________ to atoms of another with different atomic properties.
a)
Element
b)
Boson
c)
Molecule
d)
Atom
17.
Both protons and neutrons consist of one up quark and two down quarks.
a)
True
b)
False
18.
What keeps the nucleus of an atom together?
a)
The electrons' strong attraction to the protons
b)
The neutrons' strong repulsion of protons
c)
The strong force of attraction between protons and neutrons
19.
Fill in the blank(s):
____________________ have an electric charge of -1, so ____________________ have an opposite but equal electric charge of +1.
a)
Electrons, Protons
b)
Protons, Electrons
c)
Neutrons, Protons
d)
Bosons, Electrons
20.
Fill in the blank(s): Protons and neutrons are made up of fundamental particles of matter called __________.
a)
Quarks
b)
Electrons
c)
Gluons
d)
Muons
21.
According to the standard model, all known matter consists of quarks and leptons that interact by exchanging bosons, which transmit fundamental forces.
a)
True
b)
False
22.
As a star moves to the right on the HR diagram, it is becoming hotter.
a)
True
b)
False
Reset
