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WorksheetsGCSE Physics Quiz: Atomic Structure and Nuclear Physics
Total questions: 15
Worksheet time: 8mins
What is the radius of an atom approximately?
1 × 10^-15 metres
1 × 10^-5 metres
1 × 10^-10 metres
1 × 10^-20 metres
What is the charge of the nucleus in an atom?
Depends on the element
Neutral
Positively charged
Negatively charged
What is the name given to atoms of the same element with different numbers of neutrons?
Molecules
Compounds
Isotopes
Ions
Which model of the atom suggested that atoms are tiny spheres that cannot be divided?
Plum pudding model
Nuclear model
Original atomic model
Bohr model
What did the alpha particle scattering experiment conclude?
Atoms are indivisible spheres
The mass of an atom is concentrated at the nucleus
Electrons are embedded in a positive sphere
Electrons orbit the nucleus at random distances
What is the process called when a nucleus emits radiation to become more stable?
Ionisation
Nuclear fusion
Nuclear fission
Radioactive decay
Which type of radiation consists of two protons and two neutrons?
Neutron
Gamma ray
Alpha particle
Beta particle
What is the unit of activity in radioactive decay?
Electronvolt (eV)
Millisievert (mSv)
Becquerel (Bq)
Sievert (Sv)
What happens to the mass and charge of a nucleus during alpha decay?
Mass remains constant, charge decreases
Mass decreases, charge increases
Mass decreases, charge decreases
Mass increases, charge decreases
What is the term for the time it takes for half the nuclei in a radioactive sample to decay?
Half-life
Radiation dose
Activity rate
Decay constant
What is radioactive contamination?
Emission of gamma rays
Exposure to nuclear radiation
Unwanted presence of radioactive atoms on materials
Absorption of neutrons by a nucleus
What is the process of exposing an object to nuclear radiation called?
Contamination
Irradiation
Fusion
Decay
What is the splitting of a large and unstable nucleus called?
Radioactive decay
Nuclear fission
Nuclear fusion
Ionisation
What is nuclear fusion?
The joining of two light nuclei to form a heavier nucleus
The absorption of neutrons by a nucleus
The splitting of a nucleus
The emission of radiation from a nucleus
Which of the following is a natural source of background radiation?
Nuclear weapons testing
Nuclear accidents
Cosmic rays from space
Medical imaging
