Match each simple machine with its description.
wedge
reduces the amount of friction when
an object is being moved
lever
can split apart an object
wheel and axle
uses a rope: can change the direction
of a force
inclined plane
similar to a seesaw can lift an object
pulley
is a ramp

When you jump from an elevated position you usually bend your knees upon reaching the ground. by doing this, you make the time of the impact about 10 times as great as for a stiff-legged landing. in this way the average force your body experiences is a) less than 1/10 as great. b) more than 1/10 as great. c) about 1/10 as great.d) about 10 times as great.