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Physics Vocabulary Questions with complete solution

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Physics Vocabulary Questions with complete solution Physics Vocabulary Reference point - correct answer a visible object to which you can compare the change of distance to a moving object Speed - correct answer distance an object travels per unit of time. Average speed - correct answ...

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  • October 19, 2024
  • 5
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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Physics Vocabulary
Reference point - correct answer ✔a visible object to which you can compare
the change of distance to a moving object


Speed - correct answer ✔distance an object travels per unit of time.


Average speed - correct answer ✔total distance an object travels divided by
the total time it takes to travel that distance, speed=distance/time


Instantaneous speed - correct answer ✔speed of an object at a given point
in time.


Velocity - correct answer ✔the speed and direction of a moving object, can
change with change in speed and/or direction


Terminal velocity - correct answer ✔a free-falling object achieves its terminal
velocity when the downward force of gravity equals the upward force of wind
resistance. This causes the net force on the object to be zero, resulting in an
acceleration of zero.


Momentum - correct answer ✔usually given the symbol p. Property of a
moving object that equals its mass times its velocity.


Acceleration - correct answer ✔rate of change of velocity,
acceleration = (final velocity -initial velocity)/
(final time-initial time)=meters/second2

, Positive acceleration - correct answer ✔rate of change of velocity where the
velocity is increasing


Negative acceleration - correct answer ✔rate of change of velocity where the
velocity is decreasing


Centripetal acceleration - correct answer ✔acceleration of an object toward
the center of a curved or circular path


Projectile motion - correct answer ✔the curved path associated with an
object that is thrown near the earth's surface


Force - correct answer ✔a push or pull exerted on an object, measured in
Newtons (N)


Net force - correct answer ✔the sum of two or more forces on an object that
are pushing or pulling in the same or opposite direction


Balanced forces - correct answer ✔forces on an object that are equal in size
and opposite in direction, resulting in a net force of 0 N


Unbalanced forces - correct answer ✔forces on an object that do NOT result
in a net force of 0 N


Centripetal Force - correct answer ✔net force exerted toward the center of a
curved path


Newton - correct answer ✔unit of force, N=(mass in kilograms)(acceleration
due to gravity)= (mass in kilograms)(9.8meters/second2)

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