What would happen if gravity disappeared for 5 seconds?

If gravity vanished for 5 seconds:

1. You'd float upward at Earth's rotation speed (up to 1,670 km/h at euator).
2. The atmosphere would begin expanding into space.
3. Oceans would lift from their basins.
4. Satellites would drift from orbits.
5. The Moon would begin moving away in a straight line.
6. When gravity returned, everything would crash down simultaneously, likely causing extinction-level destruction. Fortunately, this is impossible gravity is an intrinsic property of mass and cannot be "switched off."