Units 27-30

any of a variety of mathematical inequalities asserting a fundamental limit to the accuracy with which the values for certain pairs of physical quantities of a particle can be predicted from initial conditions

• General relativity

• Uncertainty principle

• law of reflection

• Special relativity

a hole or a space inside something solid or between two surfaces

a suggested explanation for something that has not yet been proved to be true

device or system that exhibits resonance or resonant behavior

electromagnetic radiation produced by the deceleration of a charged particle when deflected by another charged particle, typically an electron by an atomic nucleus.

• Spectrum

• Lepton

• Bremsstrahlung

• Decay

a range of waves, such as light waves or radio waves

a physical constant, approximately equal to the most probable distance between the nucleus and the electron in a hydrogen atom in its ground state

• Bohr radius

• Uncertainty principle

• Planck constant

• Gravitational constant