A. Space, time and motion

A.1 Kinematics

A.2 Forces and momentum

A.3 Work, energy and power

A.4 Rigid body mechanics

A.5 Galilean and special relativity

B. The particulate nature of matter

B.1 Thermal energy transfers

B.2 Greenhouse effect

B.3 Gas laws

B.4 Thermodynamics

B.5 Current and circuits

C. Wave behaviour

C.1 Simple harmonic motion

C.2 Wave model

C.3 Wave phenomena

C.4 Standing waves and resonance

C.5 Doppler effect

D. Fields

D.1 Gravitational fields

D.2 Electric and magnetic fields

D.3 Motion in electromagnetic fields

E. Nuclear and quantum physics

E.1 Structure of the atom

E.2 Quantum physics

E.3 Radioactive decay

E.3.1—Isotopes

E.3.2—Binding energy and mass defect

E.3.3—Binding energy curve

E.3.4—Mass-energy equivalence

E.3.5—Strong nuclear force

E.3.6—Random radioactive decay

E.3.7—Decay nuclear changes

E.3.8—Decay equations

E.3.9—Neutrinos and antineutrinos

E.3.10—Radiation penetration and ionization

E.3.11—Activity, count rate and half-life

E.3.12—Half-life changes

E.3.13—Background radiation

E.3.14 (HL)—Evidence for strong force

E.3.15 (HL)—Neutron-proton ratio

E.3.16 (HL)—Binding energy above A≈60

E.3.17 (HL)—Discrete nuclear energy levels

E.3.18 (HL)—Beta spectrum and neutrino

E.3.19 (HL)—Radioactive decay law

E.3.20 (HL)—Decay constant meaning

E.3.21 (HL)—Activity equation

E.3.22 (HL)—Half-life and decay constant

E.4 Fission

E.5 Fusion and stars

S Skills in Physics

S1.1 Experimental techniques

S1.2 Technology

S1.3 Mathematics

S2.1 Exploring and designing

S2.2 Collecting and processing data

S2.3 Concluding and evaluating

IB Physics HL E.3.15 (HL)—Neutron-proton ratio Question Bank

• Neutron-to-proton ratio affects nuclide stability.

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