Exam (elaborations)
WGU C165 Physics Assessment Integrated Physical Science With Answers.
WGU C165 Physics Assessment Integrated Physical Science With Answers.
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WGU C165 Physics AssessmentIntegrated Physical Science With
Answers
A car is moving forward and its brakes are being applied. Which of the following is true?
A. The car's velocity is forward, and its acceleration is forward.
B. The car's velocity is backward, and its acceleration is forward.
C. The car's velocity is backward, and its acceleration is backward.
D. The car's velocity is forward, and its acceleration is backward. - ✔D. The car's
velocity is forward, and its acceleration is backward.
A car moves forward along a horizontal road in a straight line at constant speed. The
net force on the car is _______. - ✔zero
You are pushing a file cabinet across a floor in a straight line at a constant speed.
Which of the following can you correctly conclude about the forces acting on the file
cabinet?
A, If you were to exert twice as much force on the file cabinet, it would slide across the
floor at twice its original speed.
B. The force that you are exerting on the file cabinet is greater than the force that friction
is exerting on it.
C. The force that you are exerting on the file cabinet is greater than the force of friction
with the cabinet's weight.
D. The force that you are exerting on the file cabinet is equal and opposite to the force
that friction is exerting on it. - ✔D. The force that you are exerting on the file cabinet is
equal and opposite to the force that friction is exerting on it.
Inertia is an object's _______________________________________. - ✔tendency to
remain stationary or continue moving in the same way.
The mass of an object measures _____________________________. - ✔the amount
of matter in an object.
Which of the following is used to increase friction?
A. spraying a lubricant onto a squeaky wheel
B. scattering sand on icy roads
C. waxing floors - ✔B. scattering sand on icy roads
The force that slows down a person falling is called __________________. - ✔air
resistance
If the distance between two objects increases, the force of gravity between them
_________________. - ✔decreases
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