HESI A2 PHYSICS LATEST EXAM QUESTIONS WITH CORRECT VERIFIED ANSWERS | 100% PASS (A+ CERTIFIED)

Scalar quantity Correct Answer magnitude but no direction speed Correct Answer scalar rate of change in position s=d/t Vector Quantity Correct Answer both magnitude and direction Velocity Correct Answer Vector rate of motion but specific to a particular direction v=d/t Acceleration Correct Answer vector rate of change of velocity requires the application of a force a= change in velocity/ change in time (Velocity/Speed) is a vector quantity that includes distance Correct Answer Velocity The measurement 25ft/s could measure (speed/ acceleration) Correct Answer speed A race car accelerates uniformly from 20.5m/s to 38.5m/s in three seconds. What is its acceleration? A. 6m/s2 b. 9m/s2 C.18m/s2 D.19.6m/s2 Correct Answer A. 6m/s2 Momentum Correct Answer mass in motion p=mv kgm/s If a rolling cart's mas is doubled by adding a load, but its velocity remains steady, it momentum will be (halved/doubled) Correct Answer doubled In the quantity 36kgm/d, "m/s" represents (vector/velocity/momentum) Correct Answer velocity What is the momentum of a 12-kg ball rolling eastward at 4m/s? A. 3kg/m B. 3kgm/s C. 48 m/s D. 48kgm/s Correct Answer D. 48kgm/s First Law of Motion (law of interia) Correct Answer An object at rest will remain at rest unless acted upon by an unbalanced force. An object in motion will stay at motion in a straight line and a steady velocity unless acted upon by an unbalanced force Second Law of Motion Correct Answer Acceleration is the product of a force on a mass. the greater the mass, the greater the force. The greater the force, the greater the acceleration. f=ma