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Difference between Tides and Waves. Key Difference: Tides are the rise and fall of sea level that is caused by the gravitational pull of the moon and the sun on the Earth. Waves are actually energy that moves across the surface of the water.
Measuring tides. Tides are the periodic and predictable rise and fall of the Earthâs ocean surface, caused by gravitational and rotational forces of the Earth, Moon and Sun acting on the water. Tides can vary in size, power and frequency due to geographical location and the positions of the Sun and Moon.Generally there are two high tides a day which are the result of the forces generated by the Earth and the Moon.ides can vary in size, power and frequency due to geographical location and the positions of the Sun and Moon. Generally there are two high tides a day which are the result of the forces generated by the Earth and the Moon.