HESI A2 Physics exam questions with answers

HESI A2 Physics exam questions with
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answers

Scalar quantity - CORRECT ANSWERS ✔✔magnitude but
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no direction
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speed - CORRECT ANSWERS ✔✔scalar
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rate of change in position
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s=d/t


Vector Quantity - CORRECT ANSWERS ✔✔both magnitude
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and direction
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Velocity - CORRECT ANSWERS ✔✔Vector
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rate of motion but specific to a particular direction
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v=d/t


Acceleration - CORRECT ANSWERS ✔✔vector |\ |\ |\ |\




rate of change of velocity
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requires the application of a force
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a= change in velocity/ change in time
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,(Velocity/Speed) is a vector quantity that includes |\ |\ |\ |\ |\ |\ |\



distance - CORRECT ANSWERS ✔✔Velocity |\ |\ |\ |\




The measurement 25ft/s could measure (speed/
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acceleration) - CORRECT ANSWERS ✔✔speed |\ |\ |\ |\




A race car accelerates uniformly from 20.5m/s to 38.5m/s
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in three seconds. What is its acceleration?
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A. 6m/s2 |\




b. 9m/s2 |\




C.18m/s2
D.19.6m/s2 - CORRECT ANSWERS ✔✔A. 6m/s2 |\ |\ |\ |\ |\




Momentum - CORRECT ANSWERS ✔✔mass in motion |\ |\ |\ |\ |\ |\




p=mv
kgm/s


If a rolling cart's mas is doubled by adding a load, but its
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velocity remains steady, it momentum will be
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(halved/doubled) - CORRECT ANSWERS ✔✔doubled
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In the quantity 36kgm/d, "m/s" represents
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(vector/velocity/momentum) - CORRECT ANSWERS
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✔✔velocity

, What is the momentum of a 12-kg ball rolling eastward at
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4m/s?
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A. 3kg/m
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B. 3kgm/s
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C. 48 m/s
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D. 48kgm/s - CORRECT ANSWERS ✔✔D. 48kgm/s
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First Law of Motion (law of interia) - CORRECT ANSWERS
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✔✔An object at rest will remain at rest unless acted upon
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by an unbalanced force. An object in motion will stay at
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motion in a straight line and a steady velocity unless
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acted upon by an unbalanced force
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Second Law of Motion - CORRECT ANSWERS
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✔✔Acceleration is the product of a force on a mass. the |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



greater the mass, the greater the force. The greater the
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force, the greater the acceleration.
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f=ma
1kgm/s=1N


Third Law of Motion - CORRECT ANSWERS ✔✔For every
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action (or Force) there is an equal and opposite reaction
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