Based upon Einstein’s famous equation E = mc2, what is true
Subject: Physics / General Physics
Based upon Einstein’s famous equation, E = mc2, what is true?
a. it will take lots of mass to create a little energy
b. the speed of light (c) is a small number
c. with a little mass, you can create lots of energy
d. the speed of light (c) is constantly changing
Fission is an acceptable source of energy for power plants because _______
a. No toxic air pollution is formed.
b. Thermal pollution of surrounding water exists.
c. Meltdown can occur.
d. There is plenty of U-235 available.
Which of the following types of decay does not change the number of protons or neutrons?
b. alpha and gamma
All electrical power plants have this in common.
a. They emit toxic gases.
b. nuclear energy must split an atom to generate heat
c. power uses some type of fuel to burn
d. power is generated from heat, which produces steam
Which of the following types of decay involves the loss or gain of an electron?
c. alpha and beta
Which of the following types of decay involves the loss of a Helium nucleus?
a. alpha and beta
What best describes a half-life?
a. Half of the material is gone after 2 half-lives.
b. Half of the volume of the material is gone after a half-life.
c. Half of the radioactive nuclei have decayed after one half life.
d. Half of the mass of the material is gone after one half-life.
In order for radiation to be released in a nuclear reaction, which must be true?
a. The nucleus must be bombarded by an electron
b. there must be an unstable nucleus
c. Uranium-235 must be used
d. the nucleus must split
What is the difference between nuclear and chemical reactions?
a. Chemical reactions involve inner electrons.
b. Nuclear reactions involve change to outer electrons.
c. Nuclear reactions show changes in the nucleus.
d. Chemical changes show changes in the nucleus
Radioacative particles and energy can be distinquished by which of the following?
a. Mass and penetrating power
b. mass only
c. mass and charge
d. Mass, charge and penetrating power.