the use of radar-type measurements to determine distances within the solar system; how distance is measured and defined in units of time, assuming the relativistic principle of the invariance of the speed of light
the use of radar-type measurements to determine distances within the solar system; how distance is measured and defined in units of time, assuming the relativistic principle of the invariance of the speed of light
effect of relativistic time dilation using the relativistic factor
the measurement of relative velocities by radar observation
evidence for a ‘hot big bang’ origin of the universe from cosmological red-shifts (Hubble’s law); cosmological microwave background.
Make appropriate use of, by sketching and interpreting:
(i) logarithmic scales of magnitudes of quantities: distance, size, mass, energy, power, brightness.
distances and ages of astronomical objects
distances and relative velocities from radar-type measurements.