HESI A2 Physics

Question 1 of 5

A key parameter in fluid selection is specific gravity (SG). For a submerged object in a reference fluid (often water), SG = ρ_object / ρ_reference. An object with SG > 1 will:

A. Experience a net buoyant force acting upwards B. Experience a net buoyant force acting downwards C. Remain neutrally buoyant D. Require knowledge of the object's volume for buoyancy determination

Question 2 of 5

What characterizes laminar flow?

A. Smooth, parallel layers of fluid particles B. Erratic and turbulent motion of fluid particles C. High viscosity hindering flow D. Incompressibility of the fluid

Question 3 of 5

During adiabatic compression of a gas, what happens to its temperature?

A. Remains constant B. Decreases C. Increases D. Becomes unpredictable without additional information

Question 4 of 5

A car, starting from rest, accelerates at 10 m/s� for 5 seconds. What is the velocity of the car after 5 seconds?

A. 2 m/s B. 5 m/s C. 50 m/s D. The answer cannot be determined from the information given.

Question 5 of 5

As a vehicle positioned at the peak of a hill rolls downhill, its potential energy transforms into:

A. Thermal energy B. Neither thermal nor kinetic energy C. A combination of thermal and kinetic energy D. Kinetic energy

HESI A2 Physics

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HESI A2