GCSE Physics Unit 2 2.7/6.5 Types of Radiation Quiz

What is the nucleon number of an atom?

• Number of electrons

• Number of protons + number of neutrons

• Number of neutrons

• Number of protons

What determines the element of a nucleus?

• Number of neutrons

• Nucleon number

• Number of electrons

• Number of protons

What are isotopes?

• Atoms with different nucleon number

• Atoms with different number of protons

• Atoms with same proton number but different nucleon number

• Atoms with same nucleon number but different proton number

What is the process of an unstable nucleus becoming more stable by releasing radiation called?

• Combustion

• Fission

• Fusion

• Decaying

Why should measurements of radiation be taken over a long time or repeated several times?

• To increase the effect of random fluctuations

• To ignore the effect of random fluctuations

• To decrease the effect of random fluctuations

• To maintain the effect of random fluctuations

What is the main source of background radiation?

• Cosmic rays

• Rocks and buildings

• Radon

• Medicine

Which type of radiation is absorbed by paper?

• Gamma

• Delta

• Beta

• Alpha

Which type of radiation has the highest penetrating power?

• Alpha

• Beta

• Gamma

• Delta

What is the total nucleon number before and after a nuclear decay reaction?

• Must be decreasing before and after

• Must be different before and after

• Must be the same before and after

• Must be increasing before and after

What is the total proton number before and after a nuclear decay reaction?

• Must be different before and after

• Must be decreasing before and after

• Must be the same before and after

• Must be increasing before and after