Mechanics Dynamics UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
Mechanics - Correct answers✔✔is a branch of the physical sciences concerned with the state of
rest or motion
of bodies that are subjected to the action of forces.
Rigid Body Mechanics - Correct answers✔✔All deformation is ignored. The special case of this
is
particle mechanics, as in no shape, only mass.
Continuum - Correct answers✔✔Deformable Body Mechanics
Continuum definition - Correct answers✔✔Concerned with elastic bodies,
fluids, solids, etc
Statics - Correct answers✔✔Equilibrium of bodies at rest or moving with constant velocity.
Dynamics - Correct answers✔✔Bodies having accelerated motion.
Kinematics - Correct answers✔✔Concerned with the geometric aspects of motion — The study
of
motion without reference to forces causing the motion. Involves the position,
velocity and acceleration at an instant of time t of a particle or object.
, Kinetics - Correct answers✔✔Analysis of forces causing the motion of a particle or object —
Relates
the action of forces (and moments) to the resulting motion.
Basic Quantities - Correct answers✔✔Length, Time, Mass, Force.
Newton's Laws of Motion
First Law (inertia) - Correct answers✔✔"A particle originally at rest, or moving in a straight line,
with constant velocity,
tends to remain in this state unless acted upon by an unbalanced force."
Second Law (F = m~a) - Correct answers✔✔"A particle acted upon by an unbalanced force F~
experienced an acceleration ~a that
has the same direction as the force and a magnitude directly proportional to the
force"
Third Law (action = −reaction) - Correct answers✔✔The natural forces of action and reaction
between two particles are equal, opposite
and collinear.
Newton's laws require - Correct answers✔✔an inertial frame
The first law - Correct answers✔✔is violated inside a non-inertial frame
The second law - Correct answers✔✔makes no mention of speed or velocity, however it fails for
speeds near the
QUESTIONS AND CORRECT ANSWERS
Mechanics - Correct answers✔✔is a branch of the physical sciences concerned with the state of
rest or motion
of bodies that are subjected to the action of forces.
Rigid Body Mechanics - Correct answers✔✔All deformation is ignored. The special case of this
is
particle mechanics, as in no shape, only mass.
Continuum - Correct answers✔✔Deformable Body Mechanics
Continuum definition - Correct answers✔✔Concerned with elastic bodies,
fluids, solids, etc
Statics - Correct answers✔✔Equilibrium of bodies at rest or moving with constant velocity.
Dynamics - Correct answers✔✔Bodies having accelerated motion.
Kinematics - Correct answers✔✔Concerned with the geometric aspects of motion — The study
of
motion without reference to forces causing the motion. Involves the position,
velocity and acceleration at an instant of time t of a particle or object.
, Kinetics - Correct answers✔✔Analysis of forces causing the motion of a particle or object —
Relates
the action of forces (and moments) to the resulting motion.
Basic Quantities - Correct answers✔✔Length, Time, Mass, Force.
Newton's Laws of Motion
First Law (inertia) - Correct answers✔✔"A particle originally at rest, or moving in a straight line,
with constant velocity,
tends to remain in this state unless acted upon by an unbalanced force."
Second Law (F = m~a) - Correct answers✔✔"A particle acted upon by an unbalanced force F~
experienced an acceleration ~a that
has the same direction as the force and a magnitude directly proportional to the
force"
Third Law (action = −reaction) - Correct answers✔✔The natural forces of action and reaction
between two particles are equal, opposite
and collinear.
Newton's laws require - Correct answers✔✔an inertial frame
The first law - Correct answers✔✔is violated inside a non-inertial frame
The second law - Correct answers✔✔makes no mention of speed or velocity, however it fails for
speeds near the
