1 Exam Questions and Answers Practice
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Matter is measured in
a. kilograms
b. joules
c. electron volts
d. rems - ANSER-a
A joule is a unit of measurement for _________.
a. mass
b. Energy
c. Matter
d. Gravity - ANSER-a
Atoms and molecules are the fundamental building blocks of
_____________.
a. Energy
,b. Radiation
c. Matter
d. Gravity - ANSER-c
Ice and steam are examples of two forms of ________.
a. Matter
b. Radiation
c. Energy
d. Work - ANSER-a
The formula "E = mc2" is the basis for the theory that led to the
development of
a. x-rays
b. electromagnetic radiation
c. nuclear power
d. cathode ray tubes - ANSER-b
Radio waves, light, and x-rays are all examples of _______ energy.
a. Nuclear
b. Thermal
c. Electrical
,d. Electromagnetic - ANSER-d
A moving object has ___________ energy.
a. Potential
b. Kinetic
c. Nuclear
d. Electromagnetic - ANSER-b
What is the removal of an electron from an atom called?
a. Ionization
b. pair production
c. Irradiation
d. Electricity - ANSER-a
Ionizing radiation is capable of removing ______ from atoms as it
passes through the matter.
a. Neutrons
b. Protons
c. Electrons
d. Ions - ANSER-c
, The energy of x-rays is _______________.
a. Thermal
b. Potential
c. Kinetic
d. Electromagnetic - ANSER-d
The biggest source of manmade ionizing radiation exposure to the
public is from ________.
a. atomic fallout
b. diagnostic x-rays
c. smoke detectors
d. nuclear power plants - ANSER-b
In the United States we are exposed to _________ of ionizing radiation
from the natural environment.
a. 0-5 mR/year
b. 5-20 mR/year
c. 20-90 mR/year
d. 100-300 mR/year - ANSER-a
Wilhelm Roentgen discovered x-rays while experimenting with the
a. rotating anode.