Hazards of radiation _ GCSE Physics

The video tutorial explains the properties of alpha, beta, and gamma particles, focusing on their charges and behavior in electric or magnetic fields. It highlights how radiation can damage living cells, potentially leading to cancer or radiation poisoning. The tutorial also discusses the effects of radiation exposure, emphasizing the differences in penetration and absorption of alpha, beta, and gamma particles.

Which type of particle is deflected towards the cathode in an electric field?

• Neutrons

• Gamma particles

• Beta particles

• Alpha particles

What happens when radiation damages the DNA in a cell's nucleus?

• The cell becomes immune to radiation

• The cell repairs itself

• The cell becomes dormant

• The cell may become cancerous

What is a potential consequence of very high doses of radiation on cells?

• Cells become cancerous

• Cells become more efficient

• Cells become radioactive

• Cells are completely killed

Which type of radiation is most likely to be absorbed by living cells if ingested?

• X-ray radiation

• Alpha radiation

• Gamma radiation

• Beta radiation

Why are beta and gamma radiations considered less dangerous when ingested?

• They are deflected by the body's magnetic field

• They are less likely to contact cells

• They are larger and easily absorbed

• They are neutral and cause no harm