Forces with uniform circular motion

Question 1

when it
is at rest or moving with constant
velocity in an inertial frame of
reference.

Answer 1

equilibrium

Question 2

When a body rests or
slides on a surface, the
___ is parallel
to the surface

Answer 2

friction force

Question 3

___ between two
surfaces arises from
interactions between
molecules on the
surfaces

Answer 3

Friction

Question 4

___ acts when a body slides over a
surface.

Answer 4

Kinetic friction

Question 5

___ acts when there is no relative motion
between bodies

Answer 5

Static friction

Question 6

The ___ on a body
depends on the speed of the
body.

Answer 6

fluid resistance

Question 7

A falling body reaches its
___ when the
resisting force equals the
weight of the body.

Answer 7

terminal speed

Question 8

If a particle is in
uniform circular motion,
both its acceleration and
the net force on it are
directed toward the
___

Answer 8

center of the circle

Question 9

If the string breaks, ___ acts on the ball, so it
obeys Newton’s first law and moves in a straight
line

Answer 9

no net force