PN Mobility Assesment: ATI-Exam/ Latest Update
A nurse is assisting with performing a focused assessment on an older adult client's mobility. Which of the following findings should indicate to the nurse that the client is experiencing an age-related change to their musculoskeletal system? - CORR...
Physical Science P1 Grade 12
Definitions Exam/ Updated 2025.
Elastic Collisions - CORRECT ANSWERS -type of collision where total kinetic energy
remains unchanged
Projectile - CORRECT ANSWERS -an object upon which the only force acting is the
force of gravity
Work done on an object by a constant force F as - CORRECT ANSWERS -
Work-Energy Theorem - CORRECT ANSWERS -The net work done on an object is
equal to the change in the object's
kinetic energy OR the work done on an object by a resultant / net force
is equal to the change in the object's kinetic energy
Conservative Force - CORRECT ANSWERS -a force for which the work done in moving
an object between two
points is independent of the path taken
Examples are gravitational force, the elastic force in a spring and
electrostatic forces
Non-conservative Force - CORRECT ANSWERS -a force for which the work done in
moving an object between two points depends on the path taken
Examples are frictional force, air resistance, tension in a chord, etc - CORRECT
ANSWERS -
Principle of Conservation of Mechanical Energy - CORRECT ANSWERS -The total
mechanical energy (sum of gravitational potential energy and kinetic energy) in an
isolated system remains constant
A system is isolated when the resultant/net external force acting on the system is zero
Power - CORRECT ANSWERS -the rate at which work is done or energy is expended
The Doppler Effect - CORRECT ANSWERS -is the change in frequency (or pitch) of the
sound detected by a listener because the sound source and the listener have different
velocities relative to the medium of sound propagation
Normal Force - CORRECT ANSWERS -the force or the component of a force which a
surface exerts on an object with which it is in contact, and which is perpendicular to the
surface
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