- Which is not a form of ionizing radiation?
Your answer:
Alpha rays
infrared
Gamma Rays
Beta rays
- Carbon 14 is a radioactive isotope of carbon
Your answer:
TrueFalse
- Stable isotopes tend to be radioactive
Your answer:
TrueFalse
- Which is not an effect of radiation on living tissue?
Your answer:
causes mutations
hair growth increased
burns
destruction of blood cells
- The Geiger-Muller tube is a tool for detecting radiation
Your answer:
TrueFalse
- alpha particles consist of Helium nuclei and have positive charge
Your answer:
TrueFalse
- Alpha particles are
Your answer:
harmless
not stopped by paper because of their large size
highly ionizing and cause much damage to cells
travel long distances through air
- Beta particles consist of positively charged Helium nuclei
Your answer:
TrueFalse
- Beta particles are stopped by a few millimeters of aluminum
Your answer:
TrueFalse
- Gamma radiation...which is false?
Your answer:
travels long distances
is only stopped by a few centimeters of lead or thick concrete
is charged
is uncharged
- Cancer cells can be killed by radiation
Your answer:
TrueFalse
- Cancer is caused by radiation
Your answer:
TrueFalse
- Medical uses of radiation include all except
Your answer:
sterilizing surgical instruments
treatment of tumors
tracers for checking function of organs
sterilization of the intestinal bacteria before an operation.
- Radiation is used to check the thickness of metal sheets
Your answer:
TrueFalse
- Radiocarbon dating is a way of dating organic materials using Carbon 12 isotopes
Your answer:
TrueFalse
- Background radiation sources include all except
Your answer:
stable isotopes of carbon and oxygen
artificial sources (example: medical x-rays)
cosmic rays
radon gas in air
- Half Life is defined as the time taken for one fourth the nuclei of a radioactive substance to decay
Your answer:
TrueFalse
- Carbon 14 has a half life in excess of 1 million years
Your answer:
TrueFalse
- A substance has a half life of two years. In how many years will there be 1/8 of the original nuclei undecayed?
Your answer:
4
6
2
8
- Nuclear power stations produce less waste and pollution than coal fired power stations
Your answer:
TrueFalse
- An atomic bomb is the result of an uncontrolled nuclear chain reaction
Your answer:
TrueFalse
- Chernobyl: which is not true
Your answer:
produced a great deal of fallout across W. Europe
is not an ongoing risk even today after 20 years
was caused by an explosion during a safety test
Is killing thousands of people from cancer
- Fusion is cleaner than fission...less possibility of radioactive contamination and waste
Your answer:
TrueFalse
- Nuclear waste needs to be carefully managed for thousands of years to avoid contamination of our environment
Your answer:
TrueFalse
- The half life of a radioactive atom is 2 months. Starting with 1 gram, after 6 months how much will remain?
Your answer:
will remain radioactive for thousands of years
1/2
1/4
1/8
- Three Mile Island Nuclear Reactor had a similar accident to Chernobyl in 1979
Your answer:
TrueFalse
- Chernobyl caused background radiation 1000 times that of normal
Your answer:
TrueFalse
- Chernobyl caused a 10000 times increase in thyroid cancers
Your answer:
TrueFalse
- Chhernobyl caused a 250% increase in birth defects
Your answer:
TrueFalse
- Nuclear power reactors that make electricity commercially are all fusion type
Your answer:
TrueFalse