Physics Final Exam Review
Save
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
-The weight of a book sitting on a table is a negative force
-The atoms squeeze
-The compressed atoms produce - (correct Answer) - -that squeezes downward on the
atoms of the table
-upward on the book.
-the positive support force.
Objects at rest are said to be in - (correct Answer) - static equilibrium
Objects moving at constant speed in a straight line path are said to be in -
(correct Answer) - dynamic equilibrium
Equilibrium is a state of - (correct Answer) - no change
An object under the influence of only one force - (correct Answer) - cannot be in
equilibrium
Only when there is no force at all, or when two or more forces combine to zero, can
- (correct Answer) - an object be in equilibrium
Both static equilibrium and dynamic equilibrium are examples of - (correct Answer)
- mechanical equilibrium
The Parallelogram Rule - (correct Answer) - to find the resultant of two
nonparallel vectors, construct a parallelogram wherein the two vectors are adjacent
Save
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
-The weight of a book sitting on a table is a negative force
-The atoms squeeze
-The compressed atoms produce - (correct Answer) - -that squeezes downward on the
atoms of the table
-upward on the book.
-the positive support force.
Objects at rest are said to be in - (correct Answer) - static equilibrium
Objects moving at constant speed in a straight line path are said to be in -
(correct Answer) - dynamic equilibrium
Equilibrium is a state of - (correct Answer) - no change
An object under the influence of only one force - (correct Answer) - cannot be in
equilibrium
Only when there is no force at all, or when two or more forces combine to zero, can
- (correct Answer) - an object be in equilibrium
Both static equilibrium and dynamic equilibrium are examples of - (correct Answer)
- mechanical equilibrium
The Parallelogram Rule - (correct Answer) - to find the resultant of two
nonparallel vectors, construct a parallelogram wherein the two vectors are adjacent
