Collisions and scattering of the particles.
Rutherford's experiment. Ballistic pendulum.
Bound
oscillators. Energy is transferred from the first oscillator
to the second one and back. As a result the amplitude of oscillation is
periodically changed.
Channeling
of electrons and positrons in crystal.
Motion
of the charged particle in perpendicular magnetic and electrostatic
fields.
Motion
of the electrons in the cathode-ray tube of oscilloscope
Harmonic oscillation. Oscillating pendulum leaves a trace in
the form of sinusoid.