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Chapter 12 Review 1
Test Description: Newton's first, second, and third law of motion, momentum, inertia, weight, mass
Instructions: Answer all questions to get your test result.
1) The SI unit of force is the
A
Kilogram
B
Newton
C
Joule
D
Meter
2) Which of the following relationships is correct?
A
1 N = 1 kg
B
1 N = 1 kg x m/s
C
1 N = 1 kg x m/s2
D
1 N = 1 kg x m
3) When an unbalanced force acts on an object,
A
The weight of the object decreases
B
The object accelerates
C
The inertia of the object increases
D
The object's motion does not change
4) When a pair of balanced forces acts on an object, the net force that results is
A
equal to zero
B
equal in size to one of the forces
C
greater in size than one of the forces
D
greater in size than both forces combined
5) What kind of a friction occurs as a fish swims through water?
A
static
B
sliding
C
rolling
D
fluid
6) As you push a cereal box across a tabletop, the sliding friction acting on the cereal box
A
acts in the direction opposite of motion
B
equals the weight of the box
C
acts in the direction of motion
D
is usually greater than static friction
7) The forces acting on a falling leaf are
A
gravity and air resistance
B
gravity and static friction
C
weight and rolling friction
D
air resistance and fluid friction
8) An open parachute increases air resistance of a falling sky diver by
A
increasing the terminal velocity
B
decreasing the weight of the diver
C
reducing fluid friction
D
increasing surface area
9) Projectile motion is caused by
A
an initial forward velocity
B
a final vertical velocity
C
the downward force of gravity
D
the downward force of gravity and an initial forward velocity
10) The property of matter that resists changes in motion is called
A
friction
B
gravity
C
inertia
D
weight
*select an answer for all questions
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