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Nucleus detectors

Total questions: 10

Worksheet time: 20mins

Name
Class
Date
1.

The atomic number of Neptunium (Np) is (a)   .

2.

The mass number of Neptunium (Np) is (a)   .

3.
Complete the nuclear equation and determine the type of decay that is occurring in this reaction. 
a)
alpha
b)
beta
c)
gamma
d)
none
4.

Which of the following substances can be used as a moderator in a nuclear reactor?

a)

Boron

b)

Concrete

c)

Uranium-238

d)

Water

5.
In the nuclear equation below, calculate the mass number of the alpha particle. 
23892U-->23490Th + 42He + 200
a)
238
b)
0
c)
234
d)
4
6.

What is the number of neutrons in Cesium?

a)

55 neutrons

b)

76 neutrons

c)

84 neutrons

d)

106 neutrons

e)

139 neutrons

7.

The lengths of the drift tubes in a LINAC are in the ratio

a)

1:2:3

b)

1:1.414:1.732

c)

1:4:9

d)

1:1:1

8.

All baryons are assigned a baryon number of ___, all anti-baryons are assigned ___, and all non-baryons are ___

a)

-1, +1, 0

b)

-1, 0, +1

c)

+1, -1, 0

d)

0, -1, +1

9.

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

10.
What do the initial moments after the Big Bang have in common with the universe as it exists now? 
a)
all the stars, galaxies, and planets that exist today were formed just a few moments after the Big Bang
b)
The universe back then could not sustain life, and it cannot sustain life now
c)
the universe was extremely hot then, and it is still extremely hot not
d)
the universe began expanding then, and it is still expanding today