Radiation Quiz

Which of the following is a type of ionising radiation?

• Alpha particles

• Beta particles

• Gamma rays

• All of the above

What is the half-life of a substance if 100 grams of it decays to 25 grams in 6 hours?

• 1 hour

• 2 hours

• 3 hours

• 4 hours

Which graph correctly represents the decay of a radioactive substance over time?

• A straight line

• An exponential decay curve

• A parabolic curve

• A sinusoidal wave

Which of the following is a common use of radiation in everyday life?

• Sterilising medical equipment

• Generating electricity in nuclear power plants

• Treating cancer

• All of the above

Which element on the periodic table has the symbol of C?

• Carbon

• Oxygen

• Nitrogen

• Hydrogen

If a radioactive isotope has a half-life of 10 years, how much of a 40-gram sample will remain after 30 years?

• 5 grams

• 10 grams

• 20 grams

• 2.5 grams

Which type of radiation is the most penetrating?

• Alpha particles

• Beta particles

• Gamma rays

• Neutrons

What is the half-life of a substance if it takes 8 hours for a 200-gram sample to decay to 50 grams?

• 2 hours

• 4 hours

• 6 hours

• 8 hours

Which of the following elements is a noble gas?

• Helium

• Hydrogen

• Carbon

• Nitrogen

Which element has the symbol 'Fe' on the periodic table?

• Fluorine

• Iron

• Francium

• Fermium