HESI A2 - PHYSICS EXAM QUESTIONS

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HESI A2 - PHYSICS EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -34 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: Valence Electrons

Answer:

electrons in the outermost shell; good conductors of electricity

Question 2: Trough

Answer:

low point of a wave

Question 3: Refraction

Answer:

the bending of a wave as it passes at an angle from one medium into another if the speed of a propagation differs

Question 4: Average Speed

Answer:

the distance an object travels divided by the time the object travels without regard to direction of travel average speed = d/t

Question 5: Magnetism

Answer:

property of a material that will attract iron, cobalt, or nickel

Question 6: Coulomb's Law

Answer:

states that the force of attraction or repulsion between two charged objects is directly proportional to the product of their quantities and inversely proportional to the square of the distance between them

Question 7: Scalar Quantity

Answer:

quantity described simply by a numeric value and is expressed in units of magnitude

Question 8: Projectile Motion

Answer:

it is possible for an object to display two types of motion simultaneously

Question 9: Kinetic Energy

Answer:

the energy resulting from the motion of the object

Question 10: Newton's Third Law of Motion

Answer:

states that for every action there must be an equal and opposite reaction

Question 11: Amplitude

Answer:

maximum displacement from equilibrium

Question 12: Centripetal Acceleration

Answer:

rotational motion equivalent of acceleration

Question 13: Joules

Answer:

a newton-meter or a kilogram-meter squared per second squared; unit of measurement for kinetic energy and potential energy

Question 14: Average Velocity

Answer:

determined by averaging the initial speed and the final speed of the object

Question 15: Mechanical Waves

Answer:

associated with some material or substance called the medium

Question 16: Crest

Answer:

high point of a wave

Question 17: Electromagnetic Induction

Answer:

any moving magnetic field will create an electric current

Question 18: Friction

Answer:

a force that opposes motion and is expressed in newtons

Question 19: Potential Energy

Answer:

the energy the object has because of its position

Question 20: Electromagnetic Waves

Answer:

do not require a medium; produced by electricity and magnetism and make up the electromagnetic spectrum

Question 21: Newton (N)

Answer:

the unit of force and is equal to the force necessary to accelerate a mass of one kilogram one meter per second per second

Question 22: Velocity

Answer:

refers to speed in a specific direction

Question 23: Force

Answer:

defined as a push or a pull on an object

Question 24: Vector Quantity

Answer:

quantity describing the time rate of change of an object's position and must be expressed in both units of magnitude and direction of motion

Question 25: Momentum

Answer:

the amount of motion displayed by an object

Question 26: Newton's First Law of Motion

Answer:

states that the body at rest will remain at rest, and the body in motion will remain in motion with a constant velocity, unless acted on by an unbalanced force; F=ka

Question 27: Law of Universal Gravitation

Answer:

newton stated that every object in the universe attracts every other object in the universe

Question 28: Acceleration

Answer:

the rate of change in velocity over a period of time