# Laws Of Motion Question Preview (ID: 192)

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The upward force of an objectfalling through the air is
a) inertia
b) air resistance
c) momentum
d) terminal velocity

The relationship among mass, force, and acceleration is explained by
a) conservation of momentum
b) Newton's first law of motion
c) Newton's second law of motion
d) Newton's third law of motion

A feather will fall through the air more slowly than a brick because of
a) gravity
b) inertia
c) air resistance
d) momentum

The path of a projectile is
a) curved
b) always horizontal
c) always vertical
d) straight

The siz of the gravitational forces between two objects depends on their
a) frictional forces
b) inertia
c) masses and distance between them
d) speed and direction

An object that is in free fall seems to be
a) not moving
b) slowed by air resistance
c) speeded up by air resistance
d) weightless

The unit of momentum is
a) kg x m
b) kg x m/s
c) kg x m/s 2
d) m/s 2

If gravity did NOT affect the path of a horizontally thrown ball, the ball would ____.
a) go straight up
b) fall straight down
d) travel horizontally

The statement "to every action there is an equal and opposite reaction" is ____.
a) The law of conservation of momentum
b) Newton's first law of motion
c) Newton's second law of motion
d) Newton's third law of motion

When a force is exerted on a box, an equal and opposite force is exerted by the box. These forces are called ____ forces.
a) action-reaction
b) centripetal
c) fricitonal
d) gravitational

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