Alpha, Beta and Gamma radiation all have different properties and effects. Radiation can have destructive effects but can also be used in medicine, industry and electricity generation.
What are the (possible) three particles found inside an atom?
Protons, neutrons and positrons
Positrons, neutrons and electrons
Protons, neutrons and electrons
What is the electrical charge found on a proton?
Neutral - no charge
What particles are found inside the nucleus of an atom?
Protons and electrons
Protons and neutrinos
Protons and neutrons
What is ionisation?
Ionisation is the loss or gain of protons to create a charged particle called an ion
Ionisation is the loss or gain of neutrons to create a charged particle called an ion
Ionisation is the loss or gain of electrons to create a charged particle called an ion
An unknown source of radiation is blocked by 5 mm of aluminium but not blocked by paper.
What kind of radiation is present?
A student in a classroom measures 450 counts on a Geiger-Muller tube in 5 minutes.
What is the background radiation in the classroom?
What steps should be taken when dealing with radioactive sources?
Maintain a safe distance and store the material in an appropriate lead lined container
Wear appropriate footwear so that you don’t slip
Make sure that you are wearing a hard hat at all times
What is the absorbed dose of a 2 kg piece of tissue exposed to 500 mJ of energy?
A substance has a half life of 60 seconds. How long will it take for its activity to decrease from 20 kBq to 2.5 kBq?
What type of energy is released by the reactions inside a nuclear reactor?