When an object is floating in the water there are two forces acting on it: the downward force of gravity and the upward force of buoyancy from the water. When it is floating still the forces are perfectly balanced and cancel each other out so the object does not move up or down. This kind of situation is called equilibrium. While the force from gravity on the object remains the same, the force from buoyancy depends on how much if it is underwater. If something pushes it down then buoyancy will by stronger than gravity, and the object will get pushed back up. In doing so the object will gain momentum and overshoot the equilibrium point as it goes up. The buoyancy force is now weaker than gravity, so the object falls back down, but overshoots the equilibrium again as it goes down. The cycle repeats as the object goes up and down until friction slows it to a stop.
bob
BOB BOB BOB
bob
In England, Bob means abbreviation of Robert. In Germany, Bob means famous, bright fame. Bob can also mean to move up and down; the flaot bobs on the water
Bob
Poor Bob doesn't do much strumming these days but when he was alive he was a down, down up down up up kinda guy. Sorry, I just couldn't help myself.
Bob
bob
Yes, water waves typically cause objects floating on the surface to move up and down. This is due to the oscillatory motion of the water particles as the wave passes underneath the object, causing it to bob up and down as the wave crest and trough move past.
An ocean buoy bobs up and down as a wave passes by because the wave causes the water particles to move in circular orbits. The buoy reacts to these circular motions by moving up and down as the wave passes underneath it.
The cast of Up Down Shinjuku - 2011 includes: Shinobu Mochizuki as Shinobu Bob Werley as Bob
The depth of water goes up and down to enable support living things living there.