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Chapter 11, Part 2
Test Description: Force and Newton's Law
Instructions: Answer all questions to get your test result.
1) A feather falls through the ar more slowly than a brick because of ________________ .
A
momentum
B
inertia
C
air resistance
D
gravity
2) To describe velocity, you need to know _________________.
A
speed and acceleration
B
speed and direction
C
direction and acceleration
D
speed and time
3) If gravity did not affect the path of a horizontally thrown ball, the ball would ____________________ .
A
follow a curved path
B
travel horizontally
C
fall straight down
D
go straight up
4) Momentum is a measure of _____________________ .
A
the amount of force acting on an object
B
how hard it is to stop an object
C
the amount of matter in an object
D
the tendency of an object to change its motion
5) Air resistance ________________ as you move faster.
A
remains the same
B
decreases
C
eventually disappears
D
increases
6) A 300-N force acts on a 25-kg object. The acceleration of the object is _____________________ .
A
7,500 m/s2
B
12 m/s2
C
25 m/s2
D
300 m/s2
7) Newton's first law of motion states that an object remains at rest unless a ______________ force acts on it.
A
net
B
frictional
C
gravitational
D
balanced
8) When amino acids are linked together, the molecule formed is a __________________________ .
A
polyalcohol
B
carbohydrate
C
protein
D
lipid
9) When Object A collides with object B and bounces back, its final momentum is _________________ its initial momentum.
A
greater than
B
less than
C
in the same direction as
D
in the opposite direction of
10) If you exert a force on an object in motion you will change its ______________________ .
A
inertia
B
weight
C
momentum
D
mass
*select an answer for all questions
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