Figure M-4 -A Certain Force Is Required to Keep a Block of Keep

Multiple Choice

Figure M-4

-A certain force is required to keep a block of wood 1 m beneath the surface of water. The force required to keep it 2 m deep is

A) zero.
B) the same.
C) twice as much.
D) four times as much.
This is because
E) pressure increases with increased depth.
F) it displaces the same weight of water at any depth.
G) wood floats.
H) surface tension is not present beneath the surface.