Honors Physics - Final Exam Review Questions with 100% Correct Answers
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Course
Honors Physics
Institution
Honors Physics
Honors Physics - Final Exam Review
Questions with 100% Correct Answers
Physics - The study of the relationship between matter & energy.
Physics not only explains what we see around us in the physical world, but
also predicts behavior to make it possible to make developments into the
"unknown" ...
Physics - ✔✔The study of the relationship between matter & energy.
Physics not only explains what we see around us in the physical world, but
also predicts behavior to make it possible to make developments into the
"unknown" based on the relatively few Laws of Physics.
Subdivisions of Physics - ✔✔Mechanics & Heat, Waves, Electricity &
Magnetism, Nuclear Physics
Acceleration - ✔✔A change in velocity over a period of time
Newton's First Law - ✔✔An object will retain its present state of rest or
constant straight line motion unless an unbalanced (net) force acts on it or
objects stay at rest will stay at rest and objects in motion will stay in straight
line motion unless an unbalanced force acts upon it. (Law of Inertia)
Newton's Second Law - ✔✔If an unbalanced (net) force acts on an object,
the object will accelerate in proportion to that force. (FNet=ma)
Newton's Third Law - ✔✔When a force is applied to an object, the object
exerts an equal force back in the opposite direction. (Action/Reaction)
, Accuracy vs. Precision - ✔✔Accuracy is how close an experimental value
is to an accepted value, and Precision is how closely measured values
agree with each other.
Weight vs. Mass - ✔✔Mass is the amount of matter in an object, and
Weight is the downward force exerted by an object due to gravity.
Equilibrium - ✔✔The state in which opposing forces or influences are
balanced.
Vectors vs. Scalars - ✔✔Vectors include direction, Scalars do not.
Falling Objects - Projectiles vs. Dropped. - ✔✔Projectiles are given a
horizontal velocity, dropped objects only have a vertical one. Both will hit
the ground at the same time.
Centripetal vs. Centrifugal Force - ✔✔Centripetal is the amount of force
needed to keep an object moving in a circle, Centrifugal is the force
pushing out of the circle.
Weightless Astronauts - ✔✔Astronauts are weightless due to the fact that
they are in a state of constant free fall.
Centripetal Acceleration - Why? - ✔✔The acceleration of an object in
circular motion. It occurs due to the length of the radius.
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