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Laws Of Motion
Test Description: INTEGRATED science 9th
Instructions: Answer all questions to get your test result.
1) The upward force of an objectfalling through the air is
A
inertia
B
air resistance
C
momentum
D
terminal velocity
2) The relationship among mass, force, and acceleration is explained by
A
Newton's second law of motion
B
conservation of momentum
C
Newton's third law of motion
D
Newton's first law of motion
3) A feather will fall through the air more slowly than a brick because of
A
inertia
B
gravity
C
momentum
D
air resistance
4) The path of a projectile is
A
curved
B
straight
C
always vertical
D
always horizontal
5) The siz of the gravitational forces between two objects depends on their
A
masses and distance between them
B
inertia
C
frictional forces
D
speed and direction
6) An object that is in free fall seems to be
A
slowed by air resistance
B
speeded up by air resistance
C
not moving
D
weightless
7) The unit of momentum is
A
m/s 2
B
kg x m
C
kg x m/s 2
D
kg x m/s
8) If gravity did NOT affect the path of a horizontally thrown ball, the ball would ____.
A
follow a curved path
B
travel horizontally
C
go straight up
D
fall straight down
9) The statement "to every action there is an equal and opposite reaction" is ____.
A
The law of conservation of momentum
B
Newton's second law of motion
C
Newton's first law of motion
D
Newton's third law of motion
10) When a force is exerted on a box, an equal and opposite force is exerted by the box. These forces are called ____ forces.
A
centripetal
B
gravitational
C
action-reaction
D
fricitonal
*select an answer for all questions
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