The type of tide formed during the first and third quarter moon when the sun and moon are at right angles to each other is called a neap tide.

Here's why:

* Neap tides occur when the gravitational pull of the sun and moon are working at right angles to each other. This means their forces are partially canceling each other out.

* The sun's gravitational pull is weaker than the moon's, but it still has an effect.

* During the first and third quarter moon phases, the sun, Earth, and moon form a right angle. This is when the sun's gravitational pull is pulling the water in a direction perpendicular to the moon's pull.

Result: The high tides are lower than usual and the low tides are higher than usual, creating smaller tidal ranges.