Foundation Tier Physics Paper 2 JUNE 2023 QUESTION
PAPER
What happens if an atomic electron emits electromagnetic radiation? - ANSWER>>>It
moves to a lower energy level (closer to nucleus)
What is meant by the atomic number? - ANSWER>>>Number of protons
What is meant by the mass number? - ANSWER>>>Total number of protons and
neutrons
What is an isotope? - ANSWER>>>Same number of protons, different number of
neutrons
What is an ion? - ANSWER>>>An atom that has lost or gained electron(s)
Why is an atom always neutrally charged? - ANSWER>>>Same number of protons as
electrons
What are the main features of The Plum Pudding Model? - ANSWER>>>Ball of positive
charge with negative electrons embedded within
What are the main features of The Rutherford Model? - ANSWER>>>Tiny, dense,
positively charged nucleus with electrons orbitting around
Which model of the atom was the result of alpha particle scattering experiments? -
ANSWER>>>The Rutherford Model
What are the main features of The Bohr Model? - ANSWER>>>Electrons orbit the
nucleus at specific distances
What did James Chadwick discover, 20 years after the nucleus became an accepted
idea? - ANSWER>>>Neutron
Which particle is responsible for giving the nucleus its positive charge? -
ANSWER>>>Proton
The discovery of which particle led to the idea of The Plum Pudding Model? -
ANSWER>>>Electron
What is meant by "activity", when measuring radioactivity? - ANSWER>>>The rate at
which a source of unstable nuclei decays
, What are the units of activity? - ANSWER>>>Becquerels (Bq)
What is meant by "count rate", when measuring radioactivity? - ANSWER>>>The
number of decays recorded each second
What are the particles that make up an atom? - ANSWER>>>Proton, neutron and
electron
What are the particles that make up a nucleus? - ANSWER>>>Proton and neutron
What charge does a proton have (positive, neutral or negative)? - ANSWER>>>Positive
What charge does a neutron have (positive, neutral or negative)? -
ANSWER>>>Neutral
What charge does a electron have (positive, neutral or negative)? -
ANSWER>>>Negative
Where is most of the mass of an atom concentrated? - ANSWER>>>The nucleus
What happens if an atomic electron absorbs electromagnetic radiation? -
ANSWER>>>It moves to a higher energy level (further from nucleus)
What is does a Geiger-Muller tube detect? - ANSWER>>>Radioactivity
What does an alpha particle consist of? - ANSWER>>>2 protons, 2 neutrons
What does an beta particle consist of? - ANSWER>>>High speed electron
What does a gamma particle consist of? - ANSWER>>>Electromagnetic radiation
Which radioactive particle is the same as a Helium nucleus? - ANSWER>>>Alpha
Which radioactive particle is the same as an electron? - ANSWER>>>Beta
Which radioactive particle is actually not a particle at all? - ANSWER>>>Gamma
What is the range of alpha in air? - ANSWER>>>2-3 centimetres
What is the range of beta in air? - ANSWER>>>1 metre
What is the range of gamma in air? - ANSWER>>>Effectively infinite
Which radioactive particle is the most ionising? - ANSWER>>>Alpha