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Chapter 6, Section 2 B
Test Description: Forces in Motion: Newton's Laws of Motion
Instructions: Answer all questions to get your test result.
1) An object at rest tends to remain at rest. This property is called ___.
A
momentum
B
inertia
C
terminal velocity
D
force pairs
2) A car accelerates from 60 km/h to a constant speed at 80 km/h. The car has increased its ___.
A
inertia
B
force pairs
C
terminal velocity
D
momentum
3) How much force is needed to accelerate a 70 kg rider and her 200 kg motor scooter at 4 m/s/s?
A
1,080 N
B
800 N
C
270 N
D
280 N
4) Newton's third law of motion states that whenever one object exerts a force on a second object, ___.
A
the second object exerts a less powerful force on the first object
B
the first object is unaffected by that force
C
the second object exerts an equal and opposite force on a third object
D
the second object exerts an equal and opposite force on the first object
5) Newton's third law of motion states that if a force is exerted on an object, another force occurs that ___.
A
is in the same direction and size
B
is in the same direction and speed
C
is equal in speed and opposite in direction
D
is equal in size and opposite in direction
6) ___ do NOT act on the same object.
A
Force pairs
B
Centripetal forces
C
Gravitational forces
D
Inertial forces.
7) Which one has the MOST momentum?
A
the fully-loaded truck
B
the midsize van
C
the empty truck
D
the small car
8) Which of the following games uses conservation of momentum?
A
all of the answers
B
baseball
C
billiards
D
bowling
9) Conservation of momentum is explained by Newton's ___.
A
second law of motion
B
first law of motion
C
third law of motion
D
fourth law of motion
10) Inertia is used when explaining Newton's ___.
A
first law of motion
B
third law of motion
C
second law of motion
D
fourth law of motion
*select an answer for all questions
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