Understanding Radiation: Alpha, Beta, and Risks

What is alpha radiation composed of?

• Electrons

• Protons

• Helium nuclei

• Gamma rays

Which of the following materials can stop alpha radiation?

• A sheet of paper

• A thin layer of air

• A lead shield

• Both A and B

How does alpha radiation compare to beta radiation in terms of mass?

• Alpha particles are lighter than beta particles

• Alpha particles are heavier than beta particles

• Alpha and beta particles have the same mass

• The mass of alpha and beta particles cannot be compared

Which type of radiation is a beta particle?

• A helium nucleus

• A high-speed electron or positron

• A high-energy photon

• A neutron

What is the primary risk associated with external exposure to alpha radiation?

• It can easily penetrate the skin and organs

• It can cause burns on contact with skin

• It is not a risk unless ingested or inhaled

• It can cause immediate radiation sickness

Which of the following is NOT a common source of radiation exposure?

• Medical X-rays

• Cosmic rays from outer space

• Household appliances

• Radon gas in homes

Compared to alpha particles, beta particles are:

• More penetrating

• Less penetrating

• Equally penetrating

• Not penetrating at all

What is the charge of an alpha particle?

• Positive

• Negative

• Neutral

• Variable

Why is radiation exposure considered a health risk?

• It can cause damage to living cells and DNA

• It can make objects radioactive

• It is always visible and can cause blindness

• It can cause immediate combustion of materials

Which of the following statements is true about beta radiation compared to alpha radiation?

• Beta radiation is made of helium nuclei

• Beta radiation has a greater mass

• Beta radiation can be stopped by a sheet of paper

• Beta radiation can penetrate further into materials