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Physics Final Exam Review Question and answers 100% correct

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Physics Final Exam Review Question and answers 100% correct Physics Final Exam Review A force is needed to - correct answer change an objects state of motion The combination of all forces acting on an object is called the - correct answer net force When you hold a rock at rest in yo...

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

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Physics Final Exam Review
A force is needed to - correct answer ✔change an objects state of motion


The combination of all forces acting on an object is called the - correct
answer ✔net force


When you hold a rock at rest in your hand, you are pushing upward on it with
as much force as Earth's gravity pulls down on it. The net force would be -
correct answer ✔zero on the rock


The scientific unit of force is the newton-- - correct answer ✔abbreviated N


Tension is a - correct answer ✔stretching force


Weight is the force of gravity - correct answer ✔acting downward on an
object


A vector is an arrow that - correct answer ✔represents the magnitude and
direction of a quantity.


A vector quantity is a quantity that needs both magnitude and - correct
answer ✔direction for a complete description
-an example would be force


A scalar quantity is a - correct answer ✔quantity that can be described by
magnitude only and has no direction. -time, area, and volume are scalar
quantities

, You can express the equilibrium rule mathematically as - correct answer
✔(funky backwards E letter)F=0
-e letter stands for the sum of
-f stands for forces


Mechanical Equilibrium is a - correct answer ✔state wherein no physical
changes occur; it is a state of steadiness


Whenever the net force on an object is zero, the object is said to be in -
correct answer ✔mechanical equilibrium


What is the Equilibrium Rule? - correct answer ✔Whenever the net force on
an object is zero, the object is said to be in mechanical equilibrium


For a suspended object at rest, the forces acting upward on the object must
be - correct answer ✔balanced by other forces acting downward to make the
vector sum equal zero


For an object at rest on a horizontal surface, - correct answer ✔the support
force must equal the objects weight


A support force is the upward force - correct answer ✔that balances the
weight of an object on a surface. A support force is often called the normal
force


An upward support force is - correct answer ✔positive and a downward
weight is negative

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