The Only Radiation Units You Need to Know

The video explains radiation, focusing on ionizing radiation, its measurement units like gray and sievert, and their health implications. It clarifies misconceptions about radiation from devices like cell phones and discusses natural and medical radiation exposure. The video also covers different types of ionizing radiation, such as alpha, beta, and gamma particles, and their varying health risks.

What type of radiation is considered harmful due to its ability to ionize atoms?

• Visible light radiation

• Ionizing radiation

• Non-ionizing radiation

• Thermal radiation

Which unit is used to measure the energy of radioactive particles?

• Becquerel

• Curie

• Joule

• Electron volt

What does one becquerel represent?

• One sievert of radiation

• One electron volt of energy

• One nuclear decay per second

• One joule of energy absorbed

What is the standard unit for measuring absorbed radiation dose?

• Sievert

• Curie

• Gray

• Roentgen

How does the sievert unit account for different types of ionizing radiation?

• By counting the number of decays per second

• By measuring the number of electrons knocked off

• By multiplying grays by a specific number

• By measuring the energy in joules

What is the average annual radiation exposure from everyday life?

• A few millisieverts

• 20 millisieverts

• 10 sieverts

• Less than 0.01 millisieverts

What is the allowed annual radiation exposure limit for nuclear industry employees?

• 5 sieverts

• 20 millisieverts

• 50 millisieverts

• 10 millisieverts